diff --git a/.php_cs b/.php_cs
index 13b84f15..e1343300 100644
--- a/.php_cs
+++ b/.php_cs
@@ -9,7 +9,7 @@ For the full copyright and license information, please view the LICENSE
 file that was distributed with this source code.
 EOF;
 
-$finder = Symfony\CS\Finder::create()
+$finder = PhpCsFixer\Finder::create()
     ->files()
     ->name('*.php')
     ->exclude('Fixtures')
@@ -17,7 +17,7 @@ $finder = Symfony\CS\Finder::create()
     ->in(__DIR__.'/tests')
 ;
 
-return Symfony\CS\Config::create()
+return PhpCsFixer\Config::create()
     ->setUsingCache(true)
     //->setUsingLinter(false)
     ->setRiskyAllowed(true)
@@ -25,9 +25,9 @@ return Symfony\CS\Config::create()
         '@PSR2' => true,
         'binary_operator_spaces' => true,
         'blank_line_before_return' => true,
+        'cast_spaces' => true,
         'header_comment' => array('header' => $header),
         'include' => true,
-        'long_array_syntax' => false,
         'method_separation' => true,
         'no_blank_lines_after_class_opening' => true,
         'no_blank_lines_after_phpdoc' => true,
@@ -38,6 +38,7 @@ return Symfony\CS\Config::create()
         'no_leading_namespace_whitespace' => true,
         'no_trailing_comma_in_singleline_array' => true,
         'no_unused_imports' => true,
+        'no_whitespace_in_blank_lines' => true,
         'object_operator_without_whitespace' => true,
         'phpdoc_align' => true,
         'phpdoc_indent' => true,
@@ -48,12 +49,11 @@ return Symfony\CS\Config::create()
         'phpdoc_trim' => true,
         'phpdoc_type_to_var' => true,
         'psr0' => true,
+        'short_array_syntax' => true,
         'single_blank_line_before_namespace' => true,
-        'spaces_cast' => true,
         'standardize_not_equals' => true,
         'ternary_operator_spaces' => true,
         'trailing_comma_in_multiline_array' => true,
-        'whitespacy_lines' => true,
     ))
     ->finder($finder)
 ;
diff --git a/src/Monolog/ErrorHandler.php b/src/Monolog/ErrorHandler.php
index 31d98a6f..5a89939c 100644
--- a/src/Monolog/ErrorHandler.php
+++ b/src/Monolog/ErrorHandler.php
@@ -36,7 +36,7 @@ class ErrorHandler
     private $hasFatalErrorHandler;
     private $fatalLevel;
     private $reservedMemory;
-    private static $fatalErrors = array(E_ERROR, E_PARSE, E_CORE_ERROR, E_COMPILE_ERROR, E_USER_ERROR);
+    private static $fatalErrors = [E_ERROR, E_PARSE, E_CORE_ERROR, E_COMPILE_ERROR, E_USER_ERROR];
 
     public function __construct(LoggerInterface $logger)
     {
@@ -54,7 +54,7 @@ class ErrorHandler
      * @param  int|false       $fatalLevel        a LogLevel::* constant, or false to disable fatal error handling
      * @return ErrorHandler
      */
-    public static function register(LoggerInterface $logger, $errorLevelMap = array(), $exceptionLevelMap = array(), $fatalLevel = null)
+    public static function register(LoggerInterface $logger, $errorLevelMap = [], $exceptionLevelMap = [], $fatalLevel = null)
     {
         $handler = new static($logger);
         if ($errorLevelMap !== false) {
@@ -70,18 +70,18 @@ class ErrorHandler
         return $handler;
     }
 
-    public function registerExceptionHandler($levelMap = array(), $callPrevious = true)
+    public function registerExceptionHandler($levelMap = [], $callPrevious = true)
     {
-        $prev = set_exception_handler(array($this, 'handleException'));
+        $prev = set_exception_handler([$this, 'handleException']);
         $this->uncaughtExceptionLevelMap = array_replace($this->defaultExceptionLevelMap(), $levelMap);
         if ($callPrevious && $prev) {
             $this->previousExceptionHandler = $prev;
         }
     }
 
-    public function registerErrorHandler(array $levelMap = array(), $callPrevious = true, $errorTypes = -1)
+    public function registerErrorHandler(array $levelMap = [], $callPrevious = true, $errorTypes = -1)
     {
-        $prev = set_error_handler(array($this, 'handleError'), $errorTypes);
+        $prev = set_error_handler([$this, 'handleError'], $errorTypes);
         $this->errorLevelMap = array_replace($this->defaultErrorLevelMap(), $levelMap);
         if ($callPrevious) {
             $this->previousErrorHandler = $prev ?: true;
@@ -90,7 +90,7 @@ class ErrorHandler
 
     public function registerFatalHandler($level = null, $reservedMemorySize = 20)
     {
-        register_shutdown_function(array($this, 'handleFatalError'));
+        register_shutdown_function([$this, 'handleFatalError']);
 
         $this->reservedMemory = str_repeat(' ', 1024 * $reservedMemorySize);
         $this->fatalLevel = $level;
@@ -99,15 +99,15 @@ class ErrorHandler
 
     protected function defaultExceptionLevelMap()
     {
-        return array(
+        return [
             'ParseError' => LogLevel::CRITICAL,
             'Throwable' => LogLevel::ERROR,
-        );
+        ];
     }
 
     protected function defaultErrorLevelMap()
     {
-        return array(
+        return [
             E_ERROR             => LogLevel::CRITICAL,
             E_WARNING           => LogLevel::WARNING,
             E_PARSE             => LogLevel::ALERT,
@@ -123,7 +123,7 @@ class ErrorHandler
             E_RECOVERABLE_ERROR => LogLevel::ERROR,
             E_DEPRECATED        => LogLevel::NOTICE,
             E_USER_DEPRECATED   => LogLevel::NOTICE,
-        );
+        ];
     }
 
     /**
@@ -142,7 +142,7 @@ class ErrorHandler
         $this->logger->log(
             $level,
             sprintf('Uncaught Exception %s: "%s" at %s line %s', get_class($e), $e->getMessage(), $e->getFile(), $e->getLine()),
-            array('exception' => $e)
+            ['exception' => $e]
         );
 
         if ($this->previousExceptionHandler) {
@@ -155,7 +155,7 @@ class ErrorHandler
     /**
      * @private
      */
-    public function handleError($code, $message, $file = '', $line = 0, $context = array())
+    public function handleError($code, $message, $file = '', $line = 0, $context = [])
     {
         if (!(error_reporting() & $code)) {
             return;
@@ -164,7 +164,7 @@ class ErrorHandler
         // fatal error codes are ignored if a fatal error handler is present as well to avoid duplicate log entries
         if (!$this->hasFatalErrorHandler || !in_array($code, self::$fatalErrors, true)) {
             $level = isset($this->errorLevelMap[$code]) ? $this->errorLevelMap[$code] : LogLevel::CRITICAL;
-            $this->logger->log($level, self::codeToString($code).': '.$message, array('code' => $code, 'message' => $message, 'file' => $file, 'line' => $line));
+            $this->logger->log($level, self::codeToString($code).': '.$message, ['code' => $code, 'message' => $message, 'file' => $file, 'line' => $line]);
         }
 
         if ($this->previousErrorHandler === true) {
@@ -186,7 +186,7 @@ class ErrorHandler
             $this->logger->log(
                 $this->fatalLevel === null ? LogLevel::ALERT : $this->fatalLevel,
                 'Fatal Error ('.self::codeToString($lastError['type']).'): '.$lastError['message'],
-                array('code' => $lastError['type'], 'message' => $lastError['message'], 'file' => $lastError['file'], 'line' => $lastError['line'])
+                ['code' => $lastError['type'], 'message' => $lastError['message'], 'file' => $lastError['file'], 'line' => $lastError['line']]
             );
 
             if ($this->logger instanceof Logger) {
diff --git a/src/Monolog/Formatter/ChromePHPFormatter.php b/src/Monolog/Formatter/ChromePHPFormatter.php
index 9beda1e7..0fda87a4 100644
--- a/src/Monolog/Formatter/ChromePHPFormatter.php
+++ b/src/Monolog/Formatter/ChromePHPFormatter.php
@@ -23,7 +23,7 @@ class ChromePHPFormatter implements FormatterInterface
     /**
      * Translates Monolog log levels to Wildfire levels.
      */
-    private $logLevels = array(
+    private $logLevels = [
         Logger::DEBUG     => 'log',
         Logger::INFO      => 'info',
         Logger::NOTICE    => 'info',
@@ -32,7 +32,7 @@ class ChromePHPFormatter implements FormatterInterface
         Logger::CRITICAL  => 'error',
         Logger::ALERT     => 'error',
         Logger::EMERGENCY => 'error',
-    );
+    ];
 
     /**
      * {@inheritdoc}
@@ -46,7 +46,7 @@ class ChromePHPFormatter implements FormatterInterface
             unset($record['extra']['file'], $record['extra']['line']);
         }
 
-        $message = array('message' => $record['message']);
+        $message = ['message' => $record['message']];
         if ($record['context']) {
             $message['context'] = $record['context'];
         }
@@ -57,17 +57,17 @@ class ChromePHPFormatter implements FormatterInterface
             $message = reset($message);
         }
 
-        return array(
+        return [
             $record['channel'],
             $message,
             $backtrace,
             $this->logLevels[$record['level']],
-        );
+        ];
     }
 
     public function formatBatch(array $records)
     {
-        $formatted = array();
+        $formatted = [];
 
         foreach ($records as $record) {
             $formatted[] = $this->format($record);
diff --git a/src/Monolog/Formatter/FlowdockFormatter.php b/src/Monolog/Formatter/FlowdockFormatter.php
index 5094af3c..2d750792 100644
--- a/src/Monolog/Formatter/FlowdockFormatter.php
+++ b/src/Monolog/Formatter/FlowdockFormatter.php
@@ -43,11 +43,11 @@ class FlowdockFormatter implements FormatterInterface
      */
     public function format(array $record)
     {
-        $tags = array(
+        $tags = [
             '#logs',
             '#' . strtolower($record['level_name']),
             '#' . $record['channel'],
-        );
+        ];
 
         foreach ($record['extra'] as $value) {
             $tags[] = '#' . $value;
@@ -60,14 +60,14 @@ class FlowdockFormatter implements FormatterInterface
             $this->getShortMessage($record['message'])
         );
 
-        $record['flowdock'] = array(
+        $record['flowdock'] = [
             'source' => $this->source,
             'from_address' => $this->sourceEmail,
             'subject' => $subject,
             'content' => $record['message'],
             'tags' => $tags,
             'project' => $this->source,
-        );
+        ];
 
         return $record;
     }
@@ -77,7 +77,7 @@ class FlowdockFormatter implements FormatterInterface
      */
     public function formatBatch(array $records)
     {
-        $formatted = array();
+        $formatted = [];
 
         foreach ($records as $record) {
             $formatted[] = $this->format($record);
diff --git a/src/Monolog/Formatter/FluentdFormatter.php b/src/Monolog/Formatter/FluentdFormatter.php
index 02632bb5..5ce2aca3 100644
--- a/src/Monolog/Formatter/FluentdFormatter.php
+++ b/src/Monolog/Formatter/FluentdFormatter.php
@@ -60,17 +60,17 @@ class FluentdFormatter implements FormatterInterface
             $tag .= '.' . strtolower($record['level_name']);
         }
 
-        $message = array(
+        $message = [
             'message' => $record['message'],
             'extra' => $record['extra'],
-        );
+        ];
 
         if (!$this->levelTag) {
             $message['level'] = $record['level'];
             $message['level_name'] = $record['level_name'];
         }
 
-        return json_encode(array($tag, $record['datetime']->getTimestamp(), $message));
+        return json_encode([$tag, $record['datetime']->getTimestamp(), $message]);
     }
 
     public function formatBatch(array $records)
diff --git a/src/Monolog/Formatter/GelfMessageFormatter.php b/src/Monolog/Formatter/GelfMessageFormatter.php
index 64e76652..847773f5 100644
--- a/src/Monolog/Formatter/GelfMessageFormatter.php
+++ b/src/Monolog/Formatter/GelfMessageFormatter.php
@@ -42,7 +42,7 @@ class GelfMessageFormatter extends NormalizerFormatter
     /**
      * Translates Monolog log levels to Graylog2 log priorities.
      */
-    private $logLevels = array(
+    private $logLevels = [
         Logger::DEBUG     => 7,
         Logger::INFO      => 6,
         Logger::NOTICE    => 5,
@@ -51,7 +51,7 @@ class GelfMessageFormatter extends NormalizerFormatter
         Logger::CRITICAL  => 2,
         Logger::ALERT     => 1,
         Logger::EMERGENCY => 0,
-    );
+    ];
 
     public function __construct($systemName = null, $extraPrefix = null, $contextPrefix = 'ctxt_')
     {
diff --git a/src/Monolog/Formatter/HtmlFormatter.php b/src/Monolog/Formatter/HtmlFormatter.php
index c3eb60a5..7b2d3f67 100644
--- a/src/Monolog/Formatter/HtmlFormatter.php
+++ b/src/Monolog/Formatter/HtmlFormatter.php
@@ -24,7 +24,7 @@ class HtmlFormatter extends NormalizerFormatter
     /**
      * Translates Monolog log levels to html color priorities.
      */
-    protected $logLevels = array(
+    protected $logLevels = [
         Logger::DEBUG     => '#cccccc',
         Logger::INFO      => '#468847',
         Logger::NOTICE    => '#3a87ad',
@@ -33,7 +33,7 @@ class HtmlFormatter extends NormalizerFormatter
         Logger::CRITICAL  => '#FF7708',
         Logger::ALERT     => '#C12A19',
         Logger::EMERGENCY => '#000000',
-    );
+    ];
 
     /**
      * @param string $dateFormat The format of the timestamp: one supported by DateTime::format
diff --git a/src/Monolog/Formatter/JsonFormatter.php b/src/Monolog/Formatter/JsonFormatter.php
index 52c50dfa..17ede7da 100644
--- a/src/Monolog/Formatter/JsonFormatter.php
+++ b/src/Monolog/Formatter/JsonFormatter.php
@@ -138,7 +138,7 @@ class JsonFormatter extends NormalizerFormatter
     protected function normalize($data)
     {
         if (is_array($data) || $data instanceof \Traversable) {
-            $normalized = array();
+            $normalized = [];
 
             $count = 1;
             foreach ($data as $key => $value) {
@@ -169,12 +169,12 @@ class JsonFormatter extends NormalizerFormatter
      */
     protected function normalizeException(\Throwable $e)
     {
-        $data = array(
+        $data = [
             'class' => get_class($e),
             'message' => $e->getMessage(),
             'code' => $e->getCode(),
             'file' => $e->getFile().':'.$e->getLine(),
-        );
+        ];
 
         if ($this->includeStacktraces) {
             $trace = $e->getTrace();
diff --git a/src/Monolog/Formatter/LineFormatter.php b/src/Monolog/Formatter/LineFormatter.php
index 96033ba5..7a94a7f3 100644
--- a/src/Monolog/Formatter/LineFormatter.php
+++ b/src/Monolog/Formatter/LineFormatter.php
@@ -155,6 +155,6 @@ class LineFormatter extends NormalizerFormatter
             return $str;
         }
 
-        return str_replace(array("\r\n", "\r", "\n"), ' ', $str);
+        return str_replace(["\r\n", "\r", "\n"], ' ', $str);
     }
 }
diff --git a/src/Monolog/Formatter/LogstashFormatter.php b/src/Monolog/Formatter/LogstashFormatter.php
index aec6fb0d..de456cfb 100644
--- a/src/Monolog/Formatter/LogstashFormatter.php
+++ b/src/Monolog/Formatter/LogstashFormatter.php
@@ -69,11 +69,11 @@ class LogstashFormatter extends NormalizerFormatter
         if (empty($record['datetime'])) {
             $record['datetime'] = gmdate('c');
         }
-        $message = array(
+        $message = [
             '@timestamp' => $record['datetime'],
             '@version' => 1,
             'host' => $this->systemName,
-        );
+        ];
         if (isset($record['message'])) {
             $message['message'] = $record['message'];
         }
diff --git a/src/Monolog/Formatter/MongoDBFormatter.php b/src/Monolog/Formatter/MongoDBFormatter.php
index d40da1f8..e58cb7e0 100644
--- a/src/Monolog/Formatter/MongoDBFormatter.php
+++ b/src/Monolog/Formatter/MongoDBFormatter.php
@@ -84,12 +84,12 @@ class MongoDBFormatter implements FormatterInterface
 
     protected function formatException(\Throwable $exception, $nestingLevel)
     {
-        $formattedException = array(
+        $formattedException = [
             'class' => get_class($exception),
             'message' => $exception->getMessage(),
             'code' => $exception->getCode(),
             'file' => $exception->getFile() . ':' . $exception->getLine(),
-        );
+        ];
 
         if ($this->exceptionTraceAsString === true) {
             $formattedException['trace'] = $exception->getTraceAsString();
diff --git a/src/Monolog/Formatter/NormalizerFormatter.php b/src/Monolog/Formatter/NormalizerFormatter.php
index 8e0e7a5f..8c060b1b 100644
--- a/src/Monolog/Formatter/NormalizerFormatter.php
+++ b/src/Monolog/Formatter/NormalizerFormatter.php
@@ -72,7 +72,7 @@ class NormalizerFormatter implements FormatterInterface
         }
 
         if (is_array($data) || $data instanceof \Traversable) {
-            $normalized = array();
+            $normalized = [];
 
             $count = 1;
             foreach ($data as $key => $value) {
@@ -90,6 +90,7 @@ class NormalizerFormatter implements FormatterInterface
             if ($data instanceof DateTimeImmutable) {
                 return (string) $data;
             }
+
             return $data->format($this->dateFormat ?: static::SIMPLE_DATE);
         }
 
@@ -124,12 +125,12 @@ class NormalizerFormatter implements FormatterInterface
 
     protected function normalizeException(Throwable $e)
     {
-        $data = array(
+        $data = [
             'class' => get_class($e),
             'message' => $e->getMessage(),
             'code' => $e->getCode(),
             'file' => $e->getFile().':'.$e->getLine(),
-        );
+        ];
 
         $trace = $e->getTrace();
         foreach ($trace as $frame) {
@@ -176,7 +177,7 @@ class NormalizerFormatter implements FormatterInterface
     }
 
     /**
-     * @param  mixed  $data
+     * @param  mixed       $data
      * @return string|bool JSON encoded data or false on failure
      */
     private function jsonEncode($data)
@@ -206,7 +207,7 @@ class NormalizerFormatter implements FormatterInterface
         if (is_string($data)) {
             $this->detectAndCleanUtf8($data);
         } elseif (is_array($data)) {
-            array_walk_recursive($data, array($this, 'detectAndCleanUtf8'));
+            array_walk_recursive($data, [$this, 'detectAndCleanUtf8']);
         } else {
             $this->throwEncodeError($code, $data);
         }
@@ -274,8 +275,8 @@ class NormalizerFormatter implements FormatterInterface
                 $data
             );
             $data = str_replace(
-                array('¤', '¦', '¨', '´', '¸', '¼', '½', '¾'),
-                array('€', 'Š', 'š', 'Ž', 'ž', 'Œ', 'œ', 'Ÿ'),
+                ['¤', '¦', '¨', '´', '¸', '¼', '½', '¾'],
+                ['€', 'Š', 'š', 'Ž', 'ž', 'Œ', 'œ', 'Ÿ'],
                 $data
             );
         }
diff --git a/src/Monolog/Formatter/WildfireFormatter.php b/src/Monolog/Formatter/WildfireFormatter.php
index ebc59f40..4a2f1cb1 100644
--- a/src/Monolog/Formatter/WildfireFormatter.php
+++ b/src/Monolog/Formatter/WildfireFormatter.php
@@ -27,7 +27,7 @@ class WildfireFormatter extends NormalizerFormatter
     /**
      * Translates Monolog log levels to Wildfire levels.
      */
-    private $logLevels = array(
+    private $logLevels = [
         Logger::DEBUG     => 'LOG',
         Logger::INFO      => 'INFO',
         Logger::NOTICE    => 'INFO',
@@ -36,7 +36,7 @@ class WildfireFormatter extends NormalizerFormatter
         Logger::CRITICAL  => 'ERROR',
         Logger::ALERT     => 'ERROR',
         Logger::EMERGENCY => 'ERROR',
-    );
+    ];
 
     /**
      * {@inheritdoc}
@@ -55,7 +55,7 @@ class WildfireFormatter extends NormalizerFormatter
         }
 
         $record = $this->normalize($record);
-        $message = array('message' => $record['message']);
+        $message = ['message' => $record['message']];
         $handleError = false;
         if ($record['context']) {
             $message['context'] = $record['context'];
@@ -79,15 +79,15 @@ class WildfireFormatter extends NormalizerFormatter
         }
 
         // Create JSON object describing the appearance of the message in the console
-        $json = $this->toJson(array(
-            array(
+        $json = $this->toJson([
+            [
                 'Type'  => $type,
                 'File'  => $file,
                 'Line'  => $line,
                 'Label' => $label,
-            ),
+            ],
             $message,
-        ), $handleError);
+        ], $handleError);
 
         // The message itself is a serialization of the above JSON object + it's length
         return sprintf(
diff --git a/src/Monolog/Handler/AbstractSyslogHandler.php b/src/Monolog/Handler/AbstractSyslogHandler.php
index 8d4115b0..24d8219b 100644
--- a/src/Monolog/Handler/AbstractSyslogHandler.php
+++ b/src/Monolog/Handler/AbstractSyslogHandler.php
@@ -25,7 +25,7 @@ abstract class AbstractSyslogHandler extends AbstractProcessingHandler
     /**
      * Translates Monolog log levels to syslog log priorities.
      */
-    protected $logLevels = array(
+    protected $logLevels = [
         Logger::DEBUG     => LOG_DEBUG,
         Logger::INFO      => LOG_INFO,
         Logger::NOTICE    => LOG_NOTICE,
@@ -34,12 +34,12 @@ abstract class AbstractSyslogHandler extends AbstractProcessingHandler
         Logger::CRITICAL  => LOG_CRIT,
         Logger::ALERT     => LOG_ALERT,
         Logger::EMERGENCY => LOG_EMERG,
-    );
+    ];
 
     /**
      * List of valid log facility names.
      */
-    protected $facilities = array(
+    protected $facilities = [
         'auth'     => LOG_AUTH,
         'authpriv' => LOG_AUTHPRIV,
         'cron'     => LOG_CRON,
@@ -51,7 +51,7 @@ abstract class AbstractSyslogHandler extends AbstractProcessingHandler
         'syslog'   => LOG_SYSLOG,
         'user'     => LOG_USER,
         'uucp'     => LOG_UUCP,
-    );
+    ];
 
     /**
      * @param mixed   $facility
diff --git a/src/Monolog/Handler/AmqpHandler.php b/src/Monolog/Handler/AmqpHandler.php
index b83a3a9e..223d6bf5 100644
--- a/src/Monolog/Handler/AmqpHandler.php
+++ b/src/Monolog/Handler/AmqpHandler.php
@@ -61,10 +61,10 @@ class AmqpHandler extends AbstractProcessingHandler
                 $data,
                 $routingKey,
                 0,
-                array(
+                [
                     'delivery_mode' => 2,
                     'content_type' => 'application/json',
-                )
+                ]
             );
         } else {
             $this->exchange->basic_publish(
@@ -125,10 +125,10 @@ class AmqpHandler extends AbstractProcessingHandler
     {
         return new AMQPMessage(
             (string) $data,
-            array(
+            [
                 'delivery_mode' => 2,
                 'content_type' => 'application/json',
-            )
+            ]
         );
     }
 
diff --git a/src/Monolog/Handler/BrowserConsoleHandler.php b/src/Monolog/Handler/BrowserConsoleHandler.php
index 958a3faa..59636f2b 100644
--- a/src/Monolog/Handler/BrowserConsoleHandler.php
+++ b/src/Monolog/Handler/BrowserConsoleHandler.php
@@ -22,7 +22,7 @@ use Monolog\Formatter\FormatterInterface;
 class BrowserConsoleHandler extends AbstractProcessingHandler
 {
     protected static $initialized = false;
-    protected static $records = array();
+    protected static $records = [];
 
     /**
      * {@inheritDoc}
@@ -79,7 +79,7 @@ class BrowserConsoleHandler extends AbstractProcessingHandler
      */
     public static function reset()
     {
-        self::$records = array();
+        self::$records = [];
     }
 
     /**
@@ -88,7 +88,7 @@ class BrowserConsoleHandler extends AbstractProcessingHandler
     protected function registerShutdownFunction()
     {
         if (PHP_SAPI !== 'cli') {
-            register_shutdown_function(array('Monolog\Handler\BrowserConsoleHandler', 'send'));
+            register_shutdown_function(['Monolog\Handler\BrowserConsoleHandler', 'send']);
         }
     }
 
@@ -133,7 +133,7 @@ class BrowserConsoleHandler extends AbstractProcessingHandler
 
     private static function generateScript()
     {
-        $script = array();
+        $script = [];
         foreach (self::$records as $record) {
             $context = self::dump('Context', $record['context']);
             $extra = self::dump('Extra', $record['extra']);
@@ -142,10 +142,10 @@ class BrowserConsoleHandler extends AbstractProcessingHandler
                 $script[] = self::call_array('log', self::handleStyles($record['formatted']));
             } else {
                 $script = array_merge($script,
-                    array(self::call_array('groupCollapsed', self::handleStyles($record['formatted']))),
+                    [self::call_array('groupCollapsed', self::handleStyles($record['formatted']))],
                     $context,
                     $extra,
-                    array(self::call('groupEnd'))
+                    [self::call('groupEnd')]
                 );
             }
         }
@@ -155,7 +155,7 @@ class BrowserConsoleHandler extends AbstractProcessingHandler
 
     private static function handleStyles($formatted)
     {
-        $args = array(self::quote('font-weight: normal'));
+        $args = [self::quote('font-weight: normal')];
         $format = '%c' . $formatted;
         preg_match_all('/\[\[(.*?)\]\]\{([^}]*)\}/s', $format, $matches, PREG_OFFSET_CAPTURE | PREG_SET_ORDER);
 
@@ -174,8 +174,8 @@ class BrowserConsoleHandler extends AbstractProcessingHandler
 
     private static function handleCustomStyles($style, $string)
     {
-        static $colors = array('blue', 'green', 'red', 'magenta', 'orange', 'black', 'grey');
-        static $labels = array();
+        static $colors = ['blue', 'green', 'red', 'magenta', 'orange', 'black', 'grey'];
+        static $labels = [];
 
         return preg_replace_callback('/macro\s*:(.*?)(?:;|$)/', function ($m) use ($string, &$colors, &$labels) {
             if (trim($m[1]) === 'autolabel') {
@@ -194,7 +194,7 @@ class BrowserConsoleHandler extends AbstractProcessingHandler
 
     private static function dump($title, array $dict)
     {
-        $script = array();
+        $script = [];
         $dict = array_filter($dict);
         if (empty($dict)) {
             return $script;
diff --git a/src/Monolog/Handler/BufferHandler.php b/src/Monolog/Handler/BufferHandler.php
index b9024e29..e65121cf 100644
--- a/src/Monolog/Handler/BufferHandler.php
+++ b/src/Monolog/Handler/BufferHandler.php
@@ -29,7 +29,7 @@ class BufferHandler extends AbstractHandler implements ProcessableHandlerInterfa
     protected $bufferSize = 0;
     protected $bufferLimit;
     protected $flushOnOverflow;
-    protected $buffer = array();
+    protected $buffer = [];
     protected $initialized = false;
 
     /**
@@ -58,7 +58,7 @@ class BufferHandler extends AbstractHandler implements ProcessableHandlerInterfa
 
         if (!$this->initialized) {
             // __destructor() doesn't get called on Fatal errors
-            register_shutdown_function(array($this, 'close'));
+            register_shutdown_function([$this, 'close']);
             $this->initialized = true;
         }
 
@@ -112,6 +112,6 @@ class BufferHandler extends AbstractHandler implements ProcessableHandlerInterfa
     public function clear()
     {
         $this->bufferSize = 0;
-        $this->buffer = array();
+        $this->buffer = [];
     }
 }
diff --git a/src/Monolog/Handler/ChromePHPHandler.php b/src/Monolog/Handler/ChromePHPHandler.php
index ac4f78cd..758ec898 100644
--- a/src/Monolog/Handler/ChromePHPHandler.php
+++ b/src/Monolog/Handler/ChromePHPHandler.php
@@ -50,11 +50,11 @@ class ChromePHPHandler extends AbstractProcessingHandler
      */
     protected static $overflowed = false;
 
-    protected static $json = array(
+    protected static $json = [
         'version' => self::VERSION,
-        'columns' => array('label', 'log', 'backtrace', 'type'),
-        'rows' => array(),
-    );
+        'columns' => ['label', 'log', 'backtrace', 'type'],
+        'rows' => [],
+    ];
 
     protected static $sendHeaders = true;
 
@@ -75,7 +75,7 @@ class ChromePHPHandler extends AbstractProcessingHandler
      */
     public function handleBatch(array $records)
     {
-        $messages = array();
+        $messages = [];
 
         foreach ($records as $record) {
             if ($record['level'] < $this->level) {
@@ -140,15 +140,15 @@ class ChromePHPHandler extends AbstractProcessingHandler
         if (strlen($data) > 240 * 1024) {
             self::$overflowed = true;
 
-            $record = array(
+            $record = [
                 'message' => 'Incomplete logs, chrome header size limit reached',
-                'context' => array(),
+                'context' => [],
                 'level' => Logger::WARNING,
                 'level_name' => Logger::getLevelName(Logger::WARNING),
                 'channel' => 'monolog',
                 'datetime' => new \DateTimeImmutable(),
-                'extra' => array(),
-            );
+                'extra' => [],
+            ];
             self::$json['rows'][count(self::$json['rows']) - 1] = $this->getFormatter()->format($record);
             $json = @json_encode(self::$json);
             $data = base64_encode(utf8_encode($json));
diff --git a/src/Monolog/Handler/CouchDBHandler.php b/src/Monolog/Handler/CouchDBHandler.php
index 376e8758..4540e2c5 100644
--- a/src/Monolog/Handler/CouchDBHandler.php
+++ b/src/Monolog/Handler/CouchDBHandler.php
@@ -24,15 +24,15 @@ class CouchDBHandler extends AbstractProcessingHandler
 {
     private $options;
 
-    public function __construct(array $options = array(), $level = Logger::DEBUG, $bubble = true)
+    public function __construct(array $options = [], $level = Logger::DEBUG, $bubble = true)
     {
-        $this->options = array_merge(array(
+        $this->options = array_merge([
             'host'     => 'localhost',
             'port'     => 5984,
             'dbname'   => 'logger',
             'username' => null,
             'password' => null,
-        ), $options);
+        ], $options);
 
         parent::__construct($level, $bubble);
     }
@@ -48,15 +48,15 @@ class CouchDBHandler extends AbstractProcessingHandler
         }
 
         $url = 'http://'.$basicAuth.$this->options['host'].':'.$this->options['port'].'/'.$this->options['dbname'];
-        $context = stream_context_create(array(
-            'http' => array(
+        $context = stream_context_create([
+            'http' => [
                 'method'        => 'POST',
                 'content'       => $record['formatted'],
                 'ignore_errors' => true,
                 'max_redirects' => 0,
                 'header'        => 'Content-type: application/json',
-            ),
-        ));
+            ],
+        ]);
 
         if (false === @file_get_contents($url, null, $context)) {
             throw new \RuntimeException(sprintf('Could not connect to %s', $url));
diff --git a/src/Monolog/Handler/CubeHandler.php b/src/Monolog/Handler/CubeHandler.php
index 96b3ca0c..7d831fef 100644
--- a/src/Monolog/Handler/CubeHandler.php
+++ b/src/Monolog/Handler/CubeHandler.php
@@ -26,7 +26,7 @@ class CubeHandler extends AbstractProcessingHandler
     private $scheme;
     private $host;
     private $port;
-    private $acceptedSchemes = array('http', 'udp');
+    private $acceptedSchemes = ['http', 'udp'];
 
     /**
      * Create a Cube handler
@@ -105,7 +105,7 @@ class CubeHandler extends AbstractProcessingHandler
     {
         $date = $record['datetime'];
 
-        $data = array('time' => $date->format('Y-m-d\TH:i:s.uO'));
+        $data = ['time' => $date->format('Y-m-d\TH:i:s.uO')];
         unset($record['datetime']);
 
         if (isset($record['context']['type'])) {
@@ -141,10 +141,10 @@ class CubeHandler extends AbstractProcessingHandler
         }
 
         curl_setopt($this->httpConnection, CURLOPT_POSTFIELDS, '['.$data.']');
-        curl_setopt($this->httpConnection, CURLOPT_HTTPHEADER, array(
+        curl_setopt($this->httpConnection, CURLOPT_HTTPHEADER, [
             'Content-Type: application/json',
             'Content-Length: ' . strlen('['.$data.']'),
-        ));
+        ]);
 
         Curl\Util::execute($this->httpConnection, 5, false);
     }
diff --git a/src/Monolog/Handler/Curl/Util.php b/src/Monolog/Handler/Curl/Util.php
index 48d30b35..2ca774d8 100644
--- a/src/Monolog/Handler/Curl/Util.php
+++ b/src/Monolog/Handler/Curl/Util.php
@@ -13,7 +13,7 @@ namespace Monolog\Handler\Curl;
 
 class Util
 {
-    private static $retriableErrorCodes = array(
+    private static $retriableErrorCodes = [
         CURLE_COULDNT_RESOLVE_HOST,
         CURLE_COULDNT_CONNECT,
         CURLE_HTTP_NOT_FOUND,
@@ -21,7 +21,7 @@ class Util
         CURLE_OPERATION_TIMEOUTED,
         CURLE_HTTP_POST_ERROR,
         CURLE_SSL_CONNECT_ERROR,
-    );
+    ];
 
     /**
      * Executes a CURL request with optional retries and exception on failure
diff --git a/src/Monolog/Handler/DeduplicationHandler.php b/src/Monolog/Handler/DeduplicationHandler.php
index 7778c22a..5d95585e 100644
--- a/src/Monolog/Handler/DeduplicationHandler.php
+++ b/src/Monolog/Handler/DeduplicationHandler.php
@@ -81,7 +81,6 @@ class DeduplicationHandler extends BufferHandler
 
         foreach ($this->buffer as $record) {
             if ($record['level'] >= $this->deduplicationLevel) {
-
                 $passthru = $passthru || !$this->isDuplicate($record);
                 if ($passthru) {
                     $this->appendRecord($record);
@@ -139,7 +138,7 @@ class DeduplicationHandler extends BufferHandler
 
         $handle = fopen($this->deduplicationStore, 'rw+');
         flock($handle, LOCK_EX);
-        $validLogs = array();
+        $validLogs = [];
 
         $timestampValidity = time() - $this->time;
 
diff --git a/src/Monolog/Handler/DynamoDbHandler.php b/src/Monolog/Handler/DynamoDbHandler.php
index 81ac3bbb..24139248 100644
--- a/src/Monolog/Handler/DynamoDbHandler.php
+++ b/src/Monolog/Handler/DynamoDbHandler.php
@@ -63,10 +63,10 @@ class DynamoDbHandler extends AbstractProcessingHandler
         $filtered = $this->filterEmptyFields($record['formatted']);
         $formatted = $this->client->formatAttributes($filtered);
 
-        $this->client->putItem(array(
+        $this->client->putItem([
             'TableName' => $this->table,
             'Item' => $formatted,
-        ));
+        ]);
     }
 
     /**
diff --git a/src/Monolog/Handler/ElasticSearchHandler.php b/src/Monolog/Handler/ElasticSearchHandler.php
index 608b8d1c..64a0b41c 100644
--- a/src/Monolog/Handler/ElasticSearchHandler.php
+++ b/src/Monolog/Handler/ElasticSearchHandler.php
@@ -43,7 +43,7 @@ class ElasticSearchHandler extends AbstractProcessingHandler
     /**
      * @var array Handler config options
      */
-    protected $options = array();
+    protected $options = [];
 
     /**
      * @param Client  $client  Elastica Client object
@@ -51,16 +51,16 @@ class ElasticSearchHandler extends AbstractProcessingHandler
      * @param int     $level   The minimum logging level at which this handler will be triggered
      * @param Boolean $bubble  Whether the messages that are handled can bubble up the stack or not
      */
-    public function __construct(Client $client, array $options = array(), $level = Logger::DEBUG, $bubble = true)
+    public function __construct(Client $client, array $options = [], $level = Logger::DEBUG, $bubble = true)
     {
         parent::__construct($level, $bubble);
         $this->client = $client;
         $this->options = array_merge(
-            array(
+            [
                 'index'          => 'monolog',      // Elastic index name
                 'type'           => 'record',       // Elastic document type
                 'ignore_error'   => false,          // Suppress Elastica exceptions
-            ),
+            ],
             $options
         );
     }
@@ -70,7 +70,7 @@ class ElasticSearchHandler extends AbstractProcessingHandler
      */
     protected function write(array $record)
     {
-        $this->bulkSend(array($record['formatted']));
+        $this->bulkSend([$record['formatted']]);
     }
 
     /**
diff --git a/src/Monolog/Handler/ErrorLogHandler.php b/src/Monolog/Handler/ErrorLogHandler.php
index cf2008a1..fc89fcde 100644
--- a/src/Monolog/Handler/ErrorLogHandler.php
+++ b/src/Monolog/Handler/ErrorLogHandler.php
@@ -52,10 +52,10 @@ class ErrorLogHandler extends AbstractProcessingHandler
      */
     public static function getAvailableTypes()
     {
-        return array(
+        return [
             self::OPERATING_SYSTEM,
             self::SAPI,
-        );
+        ];
     }
 
     /**
diff --git a/src/Monolog/Handler/FilterHandler.php b/src/Monolog/Handler/FilterHandler.php
index 7c5b9508..ff1a13d7 100644
--- a/src/Monolog/Handler/FilterHandler.php
+++ b/src/Monolog/Handler/FilterHandler.php
@@ -128,7 +128,7 @@ class FilterHandler extends Handler implements ProcessableHandlerInterface
      */
     public function handleBatch(array $records)
     {
-        $filtered = array();
+        $filtered = [];
         foreach ($records as $record) {
             if ($this->isHandling($record)) {
                 $filtered[] = $record;
diff --git a/src/Monolog/Handler/FingersCrossed/ChannelLevelActivationStrategy.php b/src/Monolog/Handler/FingersCrossed/ChannelLevelActivationStrategy.php
index 2a2a64d9..3f599656 100644
--- a/src/Monolog/Handler/FingersCrossed/ChannelLevelActivationStrategy.php
+++ b/src/Monolog/Handler/FingersCrossed/ChannelLevelActivationStrategy.php
@@ -42,7 +42,7 @@ class ChannelLevelActivationStrategy implements ActivationStrategyInterface
      * @param int   $defaultActionLevel   The default action level to be used if the record's category doesn't match any
      * @param array $channelToActionLevel An array that maps channel names to action levels.
      */
-    public function __construct($defaultActionLevel, $channelToActionLevel = array())
+    public function __construct($defaultActionLevel, $channelToActionLevel = [])
     {
         $this->defaultActionLevel = Logger::toMonologLevel($defaultActionLevel);
         $this->channelToActionLevel = array_map('Monolog\Logger::toMonologLevel', $channelToActionLevel);
diff --git a/src/Monolog/Handler/FingersCrossedHandler.php b/src/Monolog/Handler/FingersCrossedHandler.php
index dd7ddfb4..1991acf7 100644
--- a/src/Monolog/Handler/FingersCrossedHandler.php
+++ b/src/Monolog/Handler/FingersCrossedHandler.php
@@ -35,7 +35,7 @@ class FingersCrossedHandler extends Handler implements ProcessableHandlerInterfa
     protected $activationStrategy;
     protected $buffering = true;
     protected $bufferSize;
-    protected $buffer = array();
+    protected $buffer = [];
     protected $stopBuffering;
     protected $passthruLevel;
 
@@ -98,7 +98,7 @@ class FingersCrossedHandler extends Handler implements ProcessableHandlerInterfa
             }
         }
         $this->handler->handleBatch($this->buffer);
-        $this->buffer = array();
+        $this->buffer = [];
     }
 
     /**
@@ -137,7 +137,7 @@ class FingersCrossedHandler extends Handler implements ProcessableHandlerInterfa
             });
             if (count($this->buffer) > 0) {
                 $this->handler->handleBatch($this->buffer);
-                $this->buffer = array();
+                $this->buffer = [];
             }
         }
     }
@@ -157,7 +157,7 @@ class FingersCrossedHandler extends Handler implements ProcessableHandlerInterfa
      */
     public function clear()
     {
-        $this->buffer = array();
+        $this->buffer = [];
         $this->reset();
     }
 }
diff --git a/src/Monolog/Handler/FirePHPHandler.php b/src/Monolog/Handler/FirePHPHandler.php
index b56ad718..a6bc6cf7 100644
--- a/src/Monolog/Handler/FirePHPHandler.php
+++ b/src/Monolog/Handler/FirePHPHandler.php
@@ -65,7 +65,7 @@ class FirePHPHandler extends AbstractProcessingHandler
     {
         $header = sprintf('%s-%s', self::HEADER_PREFIX, join('-', $meta));
 
-        return array($header => $message);
+        return [$header => $message];
     }
 
     /**
@@ -80,7 +80,7 @@ class FirePHPHandler extends AbstractProcessingHandler
         // Wildfire is extensible to support multiple protocols & plugins in a single request,
         // but we're not taking advantage of that (yet), so we're using "1" for simplicity's sake.
         return $this->createHeader(
-            array(1, 1, 1, self::$messageIndex++),
+            [1, 1, 1, self::$messageIndex++],
             $record['formatted']
         );
     }
@@ -104,9 +104,9 @@ class FirePHPHandler extends AbstractProcessingHandler
     {
         // Initial payload consists of required headers for Wildfire
         return array_merge(
-            $this->createHeader(array('Protocol', 1), self::PROTOCOL_URI),
-            $this->createHeader(array(1, 'Structure', 1), self::STRUCTURE_URI),
-            $this->createHeader(array(1, 'Plugin', 1), self::PLUGIN_URI)
+            $this->createHeader(['Protocol', 1], self::PROTOCOL_URI),
+            $this->createHeader([1, 'Structure', 1], self::STRUCTURE_URI),
+            $this->createHeader([1, 'Plugin', 1], self::PLUGIN_URI)
         );
     }
 
diff --git a/src/Monolog/Handler/FleepHookHandler.php b/src/Monolog/Handler/FleepHookHandler.php
index f6835a5b..964f5f78 100644
--- a/src/Monolog/Handler/FleepHookHandler.php
+++ b/src/Monolog/Handler/FleepHookHandler.php
@@ -118,9 +118,9 @@ class FleepHookHandler extends SocketHandler
      */
     private function buildContent($record)
     {
-        $dataArray = array(
+        $dataArray = [
             'message' => $record['formatted'],
-        );
+        ];
 
         return http_build_query($dataArray);
     }
diff --git a/src/Monolog/Handler/GelfHandler.php b/src/Monolog/Handler/GelfHandler.php
index 6642d209..222a895b 100644
--- a/src/Monolog/Handler/GelfHandler.php
+++ b/src/Monolog/Handler/GelfHandler.php
@@ -12,7 +12,6 @@
 namespace Monolog\Handler;
 
 use Gelf\PublisherInterface;
-use InvalidArgumentException;
 use Monolog\Logger;
 use Monolog\Formatter\GelfMessageFormatter;
 use Monolog\Formatter\FormatterInterface;
diff --git a/src/Monolog/Handler/HipChatHandler.php b/src/Monolog/Handler/HipChatHandler.php
index 4bef7f20..8e7ab65a 100644
--- a/src/Monolog/Handler/HipChatHandler.php
+++ b/src/Monolog/Handler/HipChatHandler.php
@@ -70,15 +70,15 @@ class HipChatHandler extends SocketHandler
     private $host;
 
     /**
-     * @param string $token   HipChat API Token
-     * @param string $room    The room that should be alerted of the message (Id or Name)
-     * @param string $name    Name used in the "from" field.
-     * @param bool   $notify  Trigger a notification in clients or not
-     * @param int    $level   The minimum logging level at which this handler will be triggered
-     * @param bool   $bubble  Whether the messages that are handled can bubble up the stack or not
-     * @param bool   $useSSL  Whether to connect via SSL.
-     * @param string $format  The format of the messages (default to text, can be set to html if you have html in the messages)
-     * @param string $host    The HipChat server hostname.
+     * @param string $token  HipChat API Token
+     * @param string $room   The room that should be alerted of the message (Id or Name)
+     * @param string $name   Name used in the "from" field.
+     * @param bool   $notify Trigger a notification in clients or not
+     * @param int    $level  The minimum logging level at which this handler will be triggered
+     * @param bool   $bubble Whether the messages that are handled can bubble up the stack or not
+     * @param bool   $useSSL Whether to connect via SSL.
+     * @param string $format The format of the messages (default to text, can be set to html if you have html in the messages)
+     * @param string $host   The HipChat server hostname.
      */
     public function __construct($token, $room, $name = 'Monolog', $notify = false, $level = Logger::CRITICAL, $bubble = true, $useSSL = true, $format = 'text', $host = 'api.hipchat.com')
     {
@@ -114,12 +114,12 @@ class HipChatHandler extends SocketHandler
      */
     private function buildContent($record)
     {
-        $dataArray = array(
+        $dataArray = [
             'notify' => $this->notify ? 'true' : 'false',
             'message' => $record['formatted'],
             'message_format' => $this->format,
             'color' => $this->getAlertColor($record['level']),
-        );
+        ];
 
         if (!$this->validateStringLength($dataArray['message'], static::MAXIMUM_MESSAGE_LENGTH)) {
             if (function_exists('mb_substr')) {
@@ -228,9 +228,9 @@ class HipChatHandler extends SocketHandler
     private function combineRecords($records)
     {
         $batchRecord = null;
-        $batchRecords = array();
-        $messages = array();
-        $formattedMessages = array();
+        $batchRecords = [];
+        $messages = [];
+        $formattedMessages = [];
         $level = 0;
         $levelName = null;
         $datetime = null;
@@ -252,12 +252,12 @@ class HipChatHandler extends SocketHandler
             $formattedMessages[] = $this->getFormatter()->format($record);
             $formattedMessageStr = implode('', $formattedMessages);
 
-            $batchRecord = array(
+            $batchRecord = [
                 'message'   => $messageStr,
                 'formatted' => $formattedMessageStr,
-                'context'   => array(),
-                'extra'     => array(),
-            );
+                'context'   => [],
+                'extra'     => [],
+            ];
 
             if (!$this->validateStringLength($batchRecord['formatted'], static::MAXIMUM_MESSAGE_LENGTH)) {
                 // Pop the last message and implode the remaining messages
@@ -267,8 +267,8 @@ class HipChatHandler extends SocketHandler
                 $batchRecord['formatted'] = implode('', $formattedMessages);
 
                 $batchRecords[] = $batchRecord;
-                $messages = array($lastMessage);
-                $formattedMessages = array($lastFormattedMessage);
+                $messages = [$lastMessage];
+                $formattedMessages = [$lastFormattedMessage];
 
                 $batchRecord = null;
             }
@@ -282,11 +282,11 @@ class HipChatHandler extends SocketHandler
         foreach ($batchRecords as &$batchRecord) {
             $batchRecord = array_merge(
                 $batchRecord,
-                array(
+                [
                     'level'      => $level,
                     'level_name' => $levelName,
                     'datetime'   => $datetime,
-                )
+                ]
             );
         }
 
diff --git a/src/Monolog/Handler/IFTTTHandler.php b/src/Monolog/Handler/IFTTTHandler.php
index d60a3c82..f4dbf681 100644
--- a/src/Monolog/Handler/IFTTTHandler.php
+++ b/src/Monolog/Handler/IFTTTHandler.php
@@ -48,11 +48,11 @@ class IFTTTHandler extends AbstractProcessingHandler
      */
     public function write(array $record)
     {
-        $postData = array(
+        $postData = [
             "value1" => $record["channel"],
             "value2" => $record["level_name"],
             "value3" => $record["message"],
-        );
+        ];
         $postString = json_encode($postData);
 
         $ch = curl_init();
@@ -60,9 +60,9 @@ class IFTTTHandler extends AbstractProcessingHandler
         curl_setopt($ch, CURLOPT_POST, true);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
         curl_setopt($ch, CURLOPT_POSTFIELDS, $postString);
-        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
+        curl_setopt($ch, CURLOPT_HTTPHEADER, [
             "Content-Type: application/json",
-        ));
+        ]);
 
         Curl\Util::execute($ch);
     }
diff --git a/src/Monolog/Handler/LogglyHandler.php b/src/Monolog/Handler/LogglyHandler.php
index b176f33c..874cf70a 100644
--- a/src/Monolog/Handler/LogglyHandler.php
+++ b/src/Monolog/Handler/LogglyHandler.php
@@ -30,7 +30,7 @@ class LogglyHandler extends AbstractProcessingHandler
 
     protected $token;
 
-    protected $tag = array();
+    protected $tag = [];
 
     public function __construct($token, $level = Logger::DEBUG, $bubble = true)
     {
@@ -45,14 +45,14 @@ class LogglyHandler extends AbstractProcessingHandler
 
     public function setTag($tag)
     {
-        $tag = !empty($tag) ? $tag : array();
-        $this->tag = is_array($tag) ? $tag : array($tag);
+        $tag = !empty($tag) ? $tag : [];
+        $this->tag = is_array($tag) ? $tag : [$tag];
     }
 
     public function addTag($tag)
     {
         if (!empty($tag)) {
-            $tag = is_array($tag) ? $tag : array($tag);
+            $tag = is_array($tag) ? $tag : [$tag];
             $this->tag = array_unique(array_merge($this->tag, $tag));
         }
     }
@@ -79,7 +79,7 @@ class LogglyHandler extends AbstractProcessingHandler
     {
         $url = sprintf("https://%s/%s/%s/", self::HOST, $endpoint, $this->token);
 
-        $headers = array('Content-Type: application/json');
+        $headers = ['Content-Type: application/json'];
 
         if (!empty($this->tag)) {
             $headers[] = 'X-LOGGLY-TAG: '.implode(',', $this->tag);
diff --git a/src/Monolog/Handler/MailHandler.php b/src/Monolog/Handler/MailHandler.php
index 9e232838..640af29e 100644
--- a/src/Monolog/Handler/MailHandler.php
+++ b/src/Monolog/Handler/MailHandler.php
@@ -23,7 +23,7 @@ abstract class MailHandler extends AbstractProcessingHandler
      */
     public function handleBatch(array $records)
     {
-        $messages = array();
+        $messages = [];
 
         foreach ($records as $record) {
             if ($record['level'] < $this->level) {
@@ -50,7 +50,7 @@ abstract class MailHandler extends AbstractProcessingHandler
      */
     protected function write(array $record)
     {
-        $this->send((string) $record['formatted'], array($record));
+        $this->send((string) $record['formatted'], [$record]);
     }
 
     protected function getHighestRecord(array $records)
diff --git a/src/Monolog/Handler/MandrillHandler.php b/src/Monolog/Handler/MandrillHandler.php
index ab95924f..e30f603a 100644
--- a/src/Monolog/Handler/MandrillHandler.php
+++ b/src/Monolog/Handler/MandrillHandler.php
@@ -57,11 +57,11 @@ class MandrillHandler extends MailHandler
         curl_setopt($ch, CURLOPT_URL, 'https://mandrillapp.com/api/1.0/messages/send-raw.json');
         curl_setopt($ch, CURLOPT_POST, 1);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
-        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array(
+        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query([
             'key' => $this->apiKey,
             'raw_message' => (string) $message,
             'async' => false,
-        )));
+        ]));
 
         Curl\Util::execute($ch);
     }
diff --git a/src/Monolog/Handler/NativeMailerHandler.php b/src/Monolog/Handler/NativeMailerHandler.php
index d7807fd1..f6fb0430 100644
--- a/src/Monolog/Handler/NativeMailerHandler.php
+++ b/src/Monolog/Handler/NativeMailerHandler.php
@@ -38,13 +38,13 @@ class NativeMailerHandler extends MailHandler
      * Optional headers for the message
      * @var array
      */
-    protected $headers = array();
+    protected $headers = [];
 
     /**
      * Optional parameters for the message
      * @var array
      */
-    protected $parameters = array();
+    protected $parameters = [];
 
     /**
      * The wordwrap length for the message
@@ -75,7 +75,7 @@ class NativeMailerHandler extends MailHandler
     public function __construct($to, $subject, $from, $level = Logger::ERROR, $bubble = true, $maxColumnWidth = 70)
     {
         parent::__construct($level, $bubble);
-        $this->to = is_array($to) ? $to : array($to);
+        $this->to = (array) $to;
         $this->subject = $subject;
         $this->addHeader(sprintf('From: %s', $from));
         $this->maxColumnWidth = $maxColumnWidth;
diff --git a/src/Monolog/Handler/PHPConsoleHandler.php b/src/Monolog/Handler/PHPConsoleHandler.php
index f4b4cc19..10466ad4 100644
--- a/src/Monolog/Handler/PHPConsoleHandler.php
+++ b/src/Monolog/Handler/PHPConsoleHandler.php
@@ -40,10 +40,10 @@ use PhpConsole\Helper;
  */
 class PHPConsoleHandler extends AbstractProcessingHandler
 {
-    private $options = array(
+    private $options = [
         'enabled' => true, // bool Is PHP Console server enabled
-        'classesPartialsTraceIgnore' => array('Monolog\\'), // array Hide calls of classes started with...
-        'debugTagsKeysInContext' => array(0, 'tag'), // bool Is PHP Console server enabled
+        'classesPartialsTraceIgnore' => ['Monolog\\'], // array Hide calls of classes started with...
+        'debugTagsKeysInContext' => [0, 'tag'], // bool Is PHP Console server enabled
         'useOwnErrorsHandler' => false, // bool Enable errors handling
         'useOwnExceptionsHandler' => false, // bool Enable exceptions handling
         'sourcesBasePath' => null, // string Base path of all project sources to strip in errors source paths
@@ -52,7 +52,7 @@ class PHPConsoleHandler extends AbstractProcessingHandler
         'headersLimit' => null, // int|null Set headers size limit for your web-server
         'password' => null, // string|null Protect PHP Console connection by password
         'enableSslOnlyMode' => false, // bool Force connection by SSL for clients with PHP Console installed
-        'ipMasks' => array(), // array Set IP masks of clients that will be allowed to connect to PHP Console: array('192.168.*.*', '127.0.0.1')
+        'ipMasks' => [], // array Set IP masks of clients that will be allowed to connect to PHP Console: array('192.168.*.*', '127.0.0.1')
         'enableEvalListener' => false, // bool Enable eval request to be handled by eval dispatcher(if enabled, 'password' option is also required)
         'dumperDetectCallbacks' => false, // bool Convert callback items in dumper vars to (callback SomeClass::someMethod) strings
         'dumperLevelLimit' => 5, // int Maximum dumped vars array or object nested dump level
@@ -61,7 +61,7 @@ class PHPConsoleHandler extends AbstractProcessingHandler
         'dumperDumpSizeLimit' => 500000, // int Maximum approximate size of dumped vars result formatted in JSON
         'detectDumpTraceAndSource' => false, // bool Autodetect and append trace data to debug
         'dataStorage' => null, // PhpConsole\Storage|null Fixes problem with custom $_SESSION handler(see http://goo.gl/Ne8juJ)
-    );
+    ];
 
     /** @var Connector */
     private $connector;
@@ -73,7 +73,7 @@ class PHPConsoleHandler extends AbstractProcessingHandler
      * @param  bool           $bubble
      * @throws Exception
      */
-    public function __construct(array $options = array(), Connector $connector = null, $level = Logger::DEBUG, $bubble = true)
+    public function __construct(array $options = [], Connector $connector = null, $level = Logger::DEBUG, $bubble = true)
     {
         if (!class_exists('PhpConsole\Connector')) {
             throw new Exception('PHP Console library not found. See https://github.com/barbushin/php-console#installation');
diff --git a/src/Monolog/Handler/ProcessHandler.php b/src/Monolog/Handler/ProcessHandler.php
index 3cdda13a..4c2d0054 100644
--- a/src/Monolog/Handler/ProcessHandler.php
+++ b/src/Monolog/Handler/ProcessHandler.php
@@ -58,11 +58,11 @@ class ProcessHandler extends AbstractProcessingHandler
     ];
 
     /**
-     * @param int $command Command for the process to start. Absolute paths are recommended,
-     * especially if you do not use the $cwd parameter.
-     * @param bool|int $level The minimum logging level at which this handler will be triggered.
-     * @param bool|true $bubble Whether the messages that are handled can bubble up the stack or not.
-     * @param string|null $cwd "Current working directory" (CWD) for the process to be executed in.
+     * @param  int                       $command Command for the process to start. Absolute paths are recommended,
+     *                                            especially if you do not use the $cwd parameter.
+     * @param  bool|int                  $level   The minimum logging level at which this handler will be triggered.
+     * @param  bool|true                 $bubble  Whether the messages that are handled can bubble up the stack or not.
+     * @param  string|null               $cwd     "Current working directory" (CWD) for the process to be executed in.
      * @throws \InvalidArgumentException
      */
     public function __construct($command, $level = Logger::DEBUG, $bubble = true, $cwd = null)
@@ -83,7 +83,7 @@ class ProcessHandler extends AbstractProcessingHandler
     /**
      * Writes the record down to the log of the implementing handler
      *
-     * @param  array $record
+     * @param  array                     $record
      * @throws \UnexpectedValueException
      * @return void
      */
diff --git a/src/Monolog/Handler/PushoverHandler.php b/src/Monolog/Handler/PushoverHandler.php
index bba72005..aceff256 100644
--- a/src/Monolog/Handler/PushoverHandler.php
+++ b/src/Monolog/Handler/PushoverHandler.php
@@ -37,7 +37,7 @@ class PushoverHandler extends SocketHandler
      * @see https://pushover.net/api
      * @var array
      */
-    private $parameterNames = array(
+    private $parameterNames = [
         'token' => true,
         'user' => true,
         'message' => true,
@@ -51,18 +51,18 @@ class PushoverHandler extends SocketHandler
         'retry' => true,
         'expire' => true,
         'callback' => true,
-    );
+    ];
 
     /**
      * Sounds the api supports by default
      * @see https://pushover.net/api#sounds
      * @var array
      */
-    private $sounds = array(
+    private $sounds = [
         'pushover', 'bike', 'bugle', 'cashregister', 'classical', 'cosmic', 'falling', 'gamelan', 'incoming',
         'intermission', 'magic', 'mechanical', 'pianobar', 'siren', 'spacealarm', 'tugboat', 'alien', 'climb',
         'persistent', 'echo', 'updown', 'none',
-    );
+    ];
 
     /**
      * @param string       $token             Pushover api token
@@ -110,13 +110,13 @@ class PushoverHandler extends SocketHandler
 
         $timestamp = $record['datetime']->getTimestamp();
 
-        $dataArray = array(
+        $dataArray = [
             'token' => $this->token,
             'user' => $this->user,
             'message' => $message,
             'title' => $this->title,
             'timestamp' => $timestamp,
-        );
+        ];
 
         if (isset($record['level']) && $record['level'] >= $this->emergencyLevel) {
             $dataArray['priority'] = 2;
diff --git a/src/Monolog/Handler/RavenHandler.php b/src/Monolog/Handler/RavenHandler.php
index 66954e64..a573819c 100644
--- a/src/Monolog/Handler/RavenHandler.php
+++ b/src/Monolog/Handler/RavenHandler.php
@@ -27,7 +27,7 @@ class RavenHandler extends AbstractProcessingHandler
     /**
      * Translates Monolog log levels to Raven log levels.
      */
-    private $logLevels = array(
+    private $logLevels = [
         Logger::DEBUG     => Raven_Client::DEBUG,
         Logger::INFO      => Raven_Client::INFO,
         Logger::NOTICE    => Raven_Client::INFO,
@@ -36,7 +36,7 @@ class RavenHandler extends AbstractProcessingHandler
         Logger::CRITICAL  => Raven_Client::FATAL,
         Logger::ALERT     => Raven_Client::FATAL,
         Logger::EMERGENCY => Raven_Client::FATAL,
-    );
+    ];
 
     /**
      * @var string should represent the current version of the calling
@@ -92,7 +92,7 @@ class RavenHandler extends AbstractProcessingHandler
         });
 
         // the other ones are added as a context item
-        $logs = array();
+        $logs = [];
         foreach ($records as $r) {
             $logs[] = $this->processRecord($r);
         }
@@ -134,9 +134,9 @@ class RavenHandler extends AbstractProcessingHandler
     protected function write(array $record)
     {
         $previousUserContext = false;
-        $options = array();
+        $options = [];
         $options['level'] = $this->logLevels[$record['level']];
-        $options['tags'] = array();
+        $options['tags'] = [];
         if (!empty($record['extra']['tags'])) {
             $options['tags'] = array_merge($options['tags'], $record['extra']['tags']);
             unset($record['extra']['tags']);
@@ -156,7 +156,7 @@ class RavenHandler extends AbstractProcessingHandler
             $options['logger'] = $record['channel'];
         }
         foreach ($this->getExtraParameters() as $key) {
-            foreach (array('extra', 'context') as $source) {
+            foreach (['extra', 'context'] as $source) {
                 if (!empty($record[$source][$key])) {
                     $options[$key] = $record[$source][$key];
                     unset($record[$source][$key]);
@@ -183,7 +183,7 @@ class RavenHandler extends AbstractProcessingHandler
             $options['extra']['message'] = $record['formatted'];
             $this->ravenClient->captureException($record['context']['exception'], $options);
         } else {
-            $this->ravenClient->captureMessage($record['formatted'], array(), $options);
+            $this->ravenClient->captureMessage($record['formatted'], [], $options);
         }
 
         if ($previousUserContext !== false) {
@@ -216,7 +216,7 @@ class RavenHandler extends AbstractProcessingHandler
      */
     protected function getExtraParameters()
     {
-        return array('checksum', 'release');
+        return ['checksum', 'release'];
     }
 
     /**
diff --git a/src/Monolog/Handler/RollbarHandler.php b/src/Monolog/Handler/RollbarHandler.php
index e11d4642..572c40ba 100644
--- a/src/Monolog/Handler/RollbarHandler.php
+++ b/src/Monolog/Handler/RollbarHandler.php
@@ -61,7 +61,7 @@ class RollbarHandler extends AbstractProcessingHandler
             $exception = $context['exception'];
             unset($context['exception']);
 
-            $payload = array();
+            $payload = [];
             if (isset($context['payload'])) {
                 $payload = $context['payload'];
                 unset($context['payload']);
@@ -69,14 +69,14 @@ class RollbarHandler extends AbstractProcessingHandler
 
             $this->rollbarNotifier->report_exception($exception, $context, $payload);
         } else {
-            $extraData = array(
+            $extraData = [
                 'level' => $record['level'],
                 'channel' => $record['channel'],
                 'datetime' => $record['datetime']->format('U'),
-            );
+            ];
 
             $context = $record['context'];
-            $payload = array();
+            $payload = [];
             if (isset($context['payload'])) {
                 $payload = $context['payload'];
                 unset($context['payload']);
diff --git a/src/Monolog/Handler/RotatingFileHandler.php b/src/Monolog/Handler/RotatingFileHandler.php
index 932387b2..ade59411 100644
--- a/src/Monolog/Handler/RotatingFileHandler.php
+++ b/src/Monolog/Handler/RotatingFileHandler.php
@@ -69,7 +69,7 @@ class RotatingFileHandler extends StreamHandler
 
     public function setFilenameFormat($filenameFormat, $dateFormat)
     {
-        if (!in_array($dateFormat, array(self::FILE_PER_DAY, self::FILE_PER_MONTH, self::FILE_PER_YEAR))) {
+        if (!in_array($dateFormat, [self::FILE_PER_DAY, self::FILE_PER_MONTH, self::FILE_PER_YEAR])) {
             throw new InvalidArgumentException(
                 'Invalid date format - format must be one of '.
                 'RotatingFileHandler::FILE_PER_DAY, RotatingFileHandler::FILE_PER_MONTH '.
@@ -147,8 +147,8 @@ class RotatingFileHandler extends StreamHandler
     {
         $fileInfo = pathinfo($this->filename);
         $timedFilename = str_replace(
-            array('{filename}', '{date}'),
-            array($fileInfo['filename'], date($this->dateFormat)),
+            ['{filename}', '{date}'],
+            [$fileInfo['filename'], date($this->dateFormat)],
             $fileInfo['dirname'] . '/' . $this->filenameFormat
         );
 
@@ -163,8 +163,8 @@ class RotatingFileHandler extends StreamHandler
     {
         $fileInfo = pathinfo($this->filename);
         $glob = str_replace(
-            array('{filename}', '{date}'),
-            array($fileInfo['filename'], '*'),
+            ['{filename}', '{date}'],
+            [$fileInfo['filename'], '*'],
             $fileInfo['dirname'] . '/' . $this->filenameFormat
         );
         if (!empty($fileInfo['extension'])) {
diff --git a/src/Monolog/Handler/SendGridHandler.php b/src/Monolog/Handler/SendGridHandler.php
index 56a88f49..14395509 100644
--- a/src/Monolog/Handler/SendGridHandler.php
+++ b/src/Monolog/Handler/SendGridHandler.php
@@ -51,13 +51,13 @@ class SendGridHandler extends MailHandler
     protected $subject;
 
     /**
-     * @param string       $apiUser        The SendGrid API User
-     * @param string       $apiKey         The SendGrid API Key
-     * @param string       $from           The sender of the email
-     * @param string|array $to             The recipients of the email
-     * @param string       $subject        The subject of the mail
-     * @param int          $level          The minimum logging level at which this handler will be triggered
-     * @param bool         $bubble         Whether the messages that are handled can bubble up the stack or not
+     * @param string       $apiUser The SendGrid API User
+     * @param string       $apiKey  The SendGrid API Key
+     * @param string       $from    The sender of the email
+     * @param string|array $to      The recipients of the email
+     * @param string       $subject The subject of the mail
+     * @param int          $level   The minimum logging level at which this handler will be triggered
+     * @param bool         $bubble  Whether the messages that are handled can bubble up the stack or not
      */
     public function __construct(string $apiUser, string $apiKey, string $from, $to, string $subject, int $level = Logger::ERROR, bool $bubble = true)
     {
@@ -74,7 +74,7 @@ class SendGridHandler extends MailHandler
      */
     protected function send($content, array $records)
     {
-        $message = array();
+        $message = [];
         $message['api_user'] = $this->apiUser;
         $message['api_key'] = $this->apiKey;
         $message['from'] = $this->from;
diff --git a/src/Monolog/Handler/SlackHandler.php b/src/Monolog/Handler/SlackHandler.php
index ac2af023..35c809a2 100644
--- a/src/Monolog/Handler/SlackHandler.php
+++ b/src/Monolog/Handler/SlackHandler.php
@@ -136,20 +136,20 @@ class SlackHandler extends SocketHandler
      */
     protected function prepareContentData($record)
     {
-        $dataArray = array(
+        $dataArray = [
             'token'       => $this->token,
             'channel'     => $this->channel,
             'username'    => $this->username,
             'text'        => '',
-            'attachments' => array(),
-        );
+            'attachments' => [],
+        ];
 
         if ($this->useAttachment) {
-            $attachment = array(
+            $attachment = [
                 'fallback' => $record['message'],
                 'color'    => $this->getAttachmentColor($record['level']),
-                'fields'   => array(),
-            );
+                'fields'   => [],
+            ];
 
             if ($this->useShortAttachment) {
                 $attachment['title'] = $record['level_name'];
@@ -157,54 +157,54 @@ class SlackHandler extends SocketHandler
             } else {
                 $attachment['title'] = 'Message';
                 $attachment['text'] = $record['message'];
-                $attachment['fields'][] = array(
+                $attachment['fields'][] = [
                     'title' => 'Level',
                     'value' => $record['level_name'],
                     'short' => true,
-                );
+                ];
             }
 
             if ($this->includeContextAndExtra) {
                 if (!empty($record['extra'])) {
                     if ($this->useShortAttachment) {
-                        $attachment['fields'][] = array(
+                        $attachment['fields'][] = [
                             'title' => "Extra",
                             'value' => $this->stringify($record['extra']),
                             'short' => $this->useShortAttachment,
-                        );
+                        ];
                     } else {
                         // Add all extra fields as individual fields in attachment
                         foreach ($record['extra'] as $var => $val) {
-                            $attachment['fields'][] = array(
+                            $attachment['fields'][] = [
                                 'title' => $var,
                                 'value' => $val,
                                 'short' => $this->useShortAttachment,
-                            );
+                            ];
                         }
                     }
                 }
 
                 if (!empty($record['context'])) {
                     if ($this->useShortAttachment) {
-                        $attachment['fields'][] = array(
+                        $attachment['fields'][] = [
                             'title' => "Context",
                             'value' => $this->stringify($record['context']),
                             'short' => $this->useShortAttachment,
-                        );
+                        ];
                     } else {
                         // Add all context fields as individual fields in attachment
                         foreach ($record['context'] as $var => $val) {
-                            $attachment['fields'][] = array(
+                            $attachment['fields'][] = [
                                 'title' => $var,
                                 'value' => $val,
                                 'short' => $this->useShortAttachment,
-                            );
+                            ];
                         }
                     }
                 }
             }
 
-            $dataArray['attachments'] = json_encode(array($attachment));
+            $dataArray['attachments'] = json_encode([$attachment]);
         } else {
             $dataArray['text'] = $record['message'];
         }
diff --git a/src/Monolog/Handler/StreamHandler.php b/src/Monolog/Handler/StreamHandler.php
index ccf4a979..8e02e584 100644
--- a/src/Monolog/Handler/StreamHandler.php
+++ b/src/Monolog/Handler/StreamHandler.php
@@ -86,7 +86,7 @@ class StreamHandler extends AbstractProcessingHandler
             }
             $this->createDir();
             $this->errorMessage = null;
-            set_error_handler(array($this, 'customErrorHandler'));
+            set_error_handler([$this, 'customErrorHandler']);
             $this->stream = fopen($this->url, 'a');
             if ($this->filePermission !== null) {
                 @chmod($this->url, $this->filePermission);
@@ -144,7 +144,7 @@ class StreamHandler extends AbstractProcessingHandler
         $dir = $this->getDirFromStream($this->url);
         if (null !== $dir && !is_dir($dir)) {
             $this->errorMessage = null;
-            set_error_handler(array($this, 'customErrorHandler'));
+            set_error_handler([$this, 'customErrorHandler']);
             $status = mkdir($dir, 0777, true);
             restore_error_handler();
             if (false === $status) {
diff --git a/src/Monolog/Handler/TestHandler.php b/src/Monolog/Handler/TestHandler.php
index 1af09c79..b34ebaa8 100644
--- a/src/Monolog/Handler/TestHandler.php
+++ b/src/Monolog/Handler/TestHandler.php
@@ -65,8 +65,8 @@ namespace Monolog\Handler;
  */
 class TestHandler extends AbstractProcessingHandler
 {
-    protected $records = array();
-    protected $recordsByLevel = array();
+    protected $records = [];
+    protected $recordsByLevel = [];
 
     public function getRecords()
     {
@@ -75,8 +75,8 @@ class TestHandler extends AbstractProcessingHandler
 
     public function clear()
     {
-        $this->records = array();
-        $this->recordsByLevel = array();
+        $this->records = [];
+        $this->recordsByLevel = [];
     }
 
     protected function hasRecordRecords($level)
@@ -145,7 +145,7 @@ class TestHandler extends AbstractProcessingHandler
             if (method_exists($this, $genericMethod)) {
                 $args[] = $level;
 
-                return call_user_func_array(array($this, $genericMethod), $args);
+                return call_user_func_array([$this, $genericMethod], $args);
             }
         }
 
diff --git a/src/Monolog/Handler/ZendMonitorHandler.php b/src/Monolog/Handler/ZendMonitorHandler.php
index b4c8bcde..6d771226 100644
--- a/src/Monolog/Handler/ZendMonitorHandler.php
+++ b/src/Monolog/Handler/ZendMonitorHandler.php
@@ -26,7 +26,7 @@ class ZendMonitorHandler extends AbstractProcessingHandler
      *
      * @var array
      */
-    protected $levelMap = array(
+    protected $levelMap = [
         Logger::DEBUG     => 1,
         Logger::INFO      => 2,
         Logger::NOTICE    => 3,
@@ -35,7 +35,7 @@ class ZendMonitorHandler extends AbstractProcessingHandler
         Logger::CRITICAL  => 6,
         Logger::ALERT     => 7,
         Logger::EMERGENCY => 0,
-    );
+    ];
 
     /**
      * Construct
diff --git a/src/Monolog/Logger.php b/src/Monolog/Logger.php
index f81a6275..3016ba55 100644
--- a/src/Monolog/Logger.php
+++ b/src/Monolog/Logger.php
@@ -152,7 +152,7 @@ class Logger implements LoggerInterface
      * @param callable[]         $processors Optional array of processors
      * @param DateTimeZone       $timezone   Optional timezone, if not provided date_default_timezone_get() will be used
      */
-    public function __construct(string $name, array $handlers = array(), array $processors = array(), DateTimeZone $timezone = null)
+    public function __construct(string $name, array $handlers = [], array $processors = [], DateTimeZone $timezone = null)
     {
         $this->name = $name;
         $this->handlers = $handlers;
@@ -218,7 +218,7 @@ class Logger implements LoggerInterface
      */
     public function setHandlers(array $handlers): self
     {
-        $this->handlers = array();
+        $this->handlers = [];
         foreach (array_reverse($handlers) as $handler) {
             $this->pushHandler($handler);
         }
@@ -295,7 +295,7 @@ class Logger implements LoggerInterface
      * @param  array   $context The log context
      * @return Boolean Whether the record has been processed
      */
-    public function addRecord(int $level, string $message, array $context = array()): bool
+    public function addRecord(int $level, string $message, array $context = []): bool
     {
         $levelName = static::getLevelName($level);
 
@@ -303,7 +303,7 @@ class Logger implements LoggerInterface
         $handlerKey = null;
         reset($this->handlers);
         while ($handler = current($this->handlers)) {
-            if ($handler->isHandling(array('level' => $level))) {
+            if ($handler->isHandling(['level' => $level])) {
                 $handlerKey = key($this->handlers);
                 break;
             }
@@ -317,15 +317,15 @@ class Logger implements LoggerInterface
 
         $ts = $this->createDateTime();
 
-        $record = array(
+        $record = [
             'message' => $message,
             'context' => $context,
             'level' => $level,
             'level_name' => $levelName,
             'channel' => $this->name,
             'datetime' => $ts,
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         foreach ($this->processors as $processor) {
             $record = call_user_func($processor, $record);
@@ -394,9 +394,9 @@ class Logger implements LoggerInterface
      */
     public function isHandling(int $level): bool
     {
-        $record = array(
+        $record = [
             'level' => $level,
-        );
+        ];
 
         foreach ($this->handlers as $handler) {
             if ($handler->isHandling($record)) {
@@ -417,7 +417,7 @@ class Logger implements LoggerInterface
      * @param  array   $context The log context
      * @return Boolean Whether the record has been processed
      */
-    public function log($level, $message, array $context = array())
+    public function log($level, $message, array $context = [])
     {
         $level = static::toMonologLevel($level);
 
@@ -433,7 +433,7 @@ class Logger implements LoggerInterface
      * @param  array   $context The log context
      * @return Boolean Whether the record has been processed
      */
-    public function debug($message, array $context = array())
+    public function debug($message, array $context = [])
     {
         return $this->addRecord(static::DEBUG, (string) $message, $context);
     }
@@ -447,7 +447,7 @@ class Logger implements LoggerInterface
      * @param  array   $context The log context
      * @return Boolean Whether the record has been processed
      */
-    public function info($message, array $context = array())
+    public function info($message, array $context = [])
     {
         return $this->addRecord(static::INFO, (string) $message, $context);
     }
@@ -461,7 +461,7 @@ class Logger implements LoggerInterface
      * @param  array   $context The log context
      * @return Boolean Whether the record has been processed
      */
-    public function notice($message, array $context = array())
+    public function notice($message, array $context = [])
     {
         return $this->addRecord(static::NOTICE, (string) $message, $context);
     }
@@ -475,7 +475,7 @@ class Logger implements LoggerInterface
      * @param  array   $context The log context
      * @return Boolean Whether the record has been processed
      */
-    public function warning($message, array $context = array())
+    public function warning($message, array $context = [])
     {
         return $this->addRecord(static::WARNING, (string) $message, $context);
     }
@@ -489,7 +489,7 @@ class Logger implements LoggerInterface
      * @param  array   $context The log context
      * @return Boolean Whether the record has been processed
      */
-    public function error($message, array $context = array())
+    public function error($message, array $context = [])
     {
         return $this->addRecord(static::ERROR, (string) $message, $context);
     }
@@ -503,7 +503,7 @@ class Logger implements LoggerInterface
      * @param  array   $context The log context
      * @return Boolean Whether the record has been processed
      */
-    public function critical($message, array $context = array())
+    public function critical($message, array $context = [])
     {
         return $this->addRecord(static::CRITICAL, (string) $message, $context);
     }
@@ -517,7 +517,7 @@ class Logger implements LoggerInterface
      * @param  array   $context The log context
      * @return Boolean Whether the record has been processed
      */
-    public function alert($message, array $context = array())
+    public function alert($message, array $context = [])
     {
         return $this->addRecord(static::ALERT, (string) $message, $context);
     }
@@ -531,7 +531,7 @@ class Logger implements LoggerInterface
      * @param  array   $context The log context
      * @return Boolean Whether the record has been processed
      */
-    public function emergency($message, array $context = array())
+    public function emergency($message, array $context = [])
     {
         return $this->addRecord(static::EMERGENCY, (string) $message, $context);
     }
diff --git a/src/Monolog/Processor/GitProcessor.php b/src/Monolog/Processor/GitProcessor.php
index 1899400d..c4d95a91 100644
--- a/src/Monolog/Processor/GitProcessor.php
+++ b/src/Monolog/Processor/GitProcessor.php
@@ -53,12 +53,12 @@ class GitProcessor
 
         $branches = `git branch -v --no-abbrev`;
         if (preg_match('{^\* (.+?)\s+([a-f0-9]{40})(?:\s|$)}m', $branches, $matches)) {
-            return self::$cache = array(
+            return self::$cache = [
                 'branch' => $matches[1],
                 'commit' => $matches[2],
-            );
+            ];
         }
 
-        return self::$cache = array();
+        return self::$cache = [];
     }
 }
diff --git a/src/Monolog/Processor/IntrospectionProcessor.php b/src/Monolog/Processor/IntrospectionProcessor.php
index 2691630a..bec43c32 100644
--- a/src/Monolog/Processor/IntrospectionProcessor.php
+++ b/src/Monolog/Processor/IntrospectionProcessor.php
@@ -32,15 +32,15 @@ class IntrospectionProcessor
 
     private $skipStackFramesCount;
 
-    private $skipFunctions = array(
+    private $skipFunctions = [
         'call_user_func',
         'call_user_func_array',
-    );
+    ];
 
-    public function __construct($level = Logger::DEBUG, array $skipClassesPartials = array(), $skipStackFramesCount = 0)
+    public function __construct($level = Logger::DEBUG, array $skipClassesPartials = [], $skipStackFramesCount = 0)
     {
         $this->level = Logger::toMonologLevel($level);
-        $this->skipClassesPartials = array_merge(array('Monolog\\'), $skipClassesPartials);
+        $this->skipClassesPartials = array_merge(['Monolog\\'], $skipClassesPartials);
         $this->skipStackFramesCount = $skipStackFramesCount;
     }
 
@@ -85,12 +85,12 @@ class IntrospectionProcessor
         // we should have the call source now
         $record['extra'] = array_merge(
             $record['extra'],
-            array(
+            [
                 'file'      => isset($trace[$i - 1]['file']) ? $trace[$i - 1]['file'] : null,
                 'line'      => isset($trace[$i - 1]['line']) ? $trace[$i - 1]['line'] : null,
                 'class'     => isset($trace[$i]['class']) ? $trace[$i]['class'] : null,
                 'function'  => isset($trace[$i]['function']) ? $trace[$i]['function'] : null,
-            )
+            ]
         );
 
         return $record;
diff --git a/src/Monolog/Processor/PsrLogMessageProcessor.php b/src/Monolog/Processor/PsrLogMessageProcessor.php
index c2686ce5..fd907a19 100644
--- a/src/Monolog/Processor/PsrLogMessageProcessor.php
+++ b/src/Monolog/Processor/PsrLogMessageProcessor.php
@@ -30,7 +30,7 @@ class PsrLogMessageProcessor
             return $record;
         }
 
-        $replacements = array();
+        $replacements = [];
         foreach ($record['context'] as $key => $val) {
             if (is_null($val) || is_scalar($val) || (is_object($val) && method_exists($val, "__toString"))) {
                 $replacements['{'.$key.'}'] = $val;
diff --git a/src/Monolog/Processor/TagProcessor.php b/src/Monolog/Processor/TagProcessor.php
index 7e2df2ac..a5f1e7a8 100644
--- a/src/Monolog/Processor/TagProcessor.php
+++ b/src/Monolog/Processor/TagProcessor.php
@@ -20,17 +20,17 @@ class TagProcessor
 {
     private $tags;
 
-    public function __construct(array $tags = array())
+    public function __construct(array $tags = [])
     {
         $this->setTags($tags);
     }
 
-    public function addTags(array $tags = array())
+    public function addTags(array $tags = [])
     {
         $this->tags = array_merge($this->tags, $tags);
     }
 
-    public function setTags(array $tags = array())
+    public function setTags(array $tags = [])
     {
         $this->tags = $tags;
     }
diff --git a/src/Monolog/Processor/WebProcessor.php b/src/Monolog/Processor/WebProcessor.php
index ea1d8978..50e7ca34 100644
--- a/src/Monolog/Processor/WebProcessor.php
+++ b/src/Monolog/Processor/WebProcessor.php
@@ -30,13 +30,13 @@ class WebProcessor
      *
      * @var array
      */
-    protected $extraFields = array(
+    protected $extraFields = [
         'url'         => 'REQUEST_URI',
         'ip'          => 'REMOTE_ADDR',
         'http_method' => 'REQUEST_METHOD',
         'server'      => 'SERVER_NAME',
         'referrer'    => 'HTTP_REFERER',
-    );
+    ];
 
     /**
      * @param array|\ArrayAccess $serverData  Array or object w/ ArrayAccess that provides access to the $_SERVER data
diff --git a/src/Monolog/Registry.php b/src/Monolog/Registry.php
index 159b751c..587ec16e 100644
--- a/src/Monolog/Registry.php
+++ b/src/Monolog/Registry.php
@@ -42,7 +42,7 @@ class Registry
      *
      * @var Logger[]
      */
-    private static $loggers = array();
+    private static $loggers = [];
 
     /**
      * Adds new logging channel to the registry
@@ -100,7 +100,7 @@ class Registry
      */
     public static function clear()
     {
-        self::$loggers = array();
+        self::$loggers = [];
     }
 
     /**
diff --git a/src/Monolog/Test/TestCase.php b/src/Monolog/Test/TestCase.php
index 3fe7550c..fab3deea 100644
--- a/src/Monolog/Test/TestCase.php
+++ b/src/Monolog/Test/TestCase.php
@@ -24,17 +24,17 @@ class TestCase extends \PHPUnit_Framework_TestCase
     /**
      * @return array Record
      */
-    protected function getRecord($level = Logger::WARNING, $message = 'test', $context = array())
+    protected function getRecord($level = Logger::WARNING, $message = 'test', $context = [])
     {
-        return array(
+        return [
             'message' => $message,
             'context' => $context,
             'level' => $level,
             'level_name' => Logger::getLevelName($level),
             'channel' => 'test',
             'datetime' => new DateTimeImmutable(true),
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
     }
 
     /**
@@ -42,13 +42,13 @@ class TestCase extends \PHPUnit_Framework_TestCase
      */
     protected function getMultipleRecords()
     {
-        return array(
+        return [
             $this->getRecord(Logger::DEBUG, 'debug message 1'),
             $this->getRecord(Logger::DEBUG, 'debug message 2'),
             $this->getRecord(Logger::INFO, 'information'),
             $this->getRecord(Logger::WARNING, 'warning'),
             $this->getRecord(Logger::ERROR, 'error'),
-        );
+        ];
     }
 
     /**
diff --git a/tests/Monolog/ErrorHandlerTest.php b/tests/Monolog/ErrorHandlerTest.php
index 6d7305c3..26ac7ead 100644
--- a/tests/Monolog/ErrorHandlerTest.php
+++ b/tests/Monolog/ErrorHandlerTest.php
@@ -17,10 +17,10 @@ class ErrorHandlerTest extends \PHPUnit_Framework_TestCase
 {
     public function testHandleError()
     {
-        $logger = new Logger('test', array($handler = new TestHandler));
+        $logger = new Logger('test', [$handler = new TestHandler]);
         $errHandler = new ErrorHandler($logger);
 
-        $errHandler->registerErrorHandler(array(E_USER_NOTICE => Logger::EMERGENCY), false);
+        $errHandler->registerErrorHandler([E_USER_NOTICE => Logger::EMERGENCY], false);
         trigger_error('Foo', E_USER_ERROR);
         $this->assertCount(1, $handler->getRecords());
         $this->assertTrue($handler->hasErrorRecords());
@@ -31,28 +31,35 @@ class ErrorHandlerTest extends \PHPUnit_Framework_TestCase
 
     public function testHandleException()
     {
-        $logger = new Logger('test', array($handler = new TestHandler));
+        $logger = new Logger('test', [$handler = new TestHandler]);
         $errHandler = new ErrorHandler($logger);
 
-        $errHandler->registerExceptionHandler(array('Monolog\CustomTestException' => Logger::ALERT, 'Throwable' => Logger::WARNING), false);
+        $errHandler->registerExceptionHandler(['Monolog\CustomTestException' => Logger::ALERT, 'Throwable' => Logger::WARNING], false);
 
         try {
             throw new CustomCustomException();
             $this->assertCount(1, $handler->getRecords());
             $this->assertTrue($handler->hasAlertRecords());
-        } catch (\Throwable $e) {}
+        } catch (\Throwable $e) {
+        }
         try {
             throw new CustomTestException();
             $this->assertCount(2, $handler->getRecords());
             $this->assertTrue($handler->hasAlertRecords());
-        } catch (\Throwable $e) {}
+        } catch (\Throwable $e) {
+        }
         try {
             throw new RuntimeException();
             $this->assertCount(3, $handler->getRecords());
             $this->assertTrue($handler->hasWarningRecords());
-        } catch (\Throwable $e) {}
+        } catch (\Throwable $e) {
+        }
     }
 }
 
-class CustomTestException extends \Exception {}
-class CustomCustomException extends CustomTestException {}
+class CustomTestException extends \Exception
+{
+}
+class CustomCustomException extends CustomTestException
+{
+}
diff --git a/tests/Monolog/Formatter/ChromePHPFormatterTest.php b/tests/Monolog/Formatter/ChromePHPFormatterTest.php
index 50a6d037..a6bb96a1 100644
--- a/tests/Monolog/Formatter/ChromePHPFormatterTest.php
+++ b/tests/Monolog/Formatter/ChromePHPFormatterTest.php
@@ -21,29 +21,29 @@ class ChromePHPFormatterTest extends \PHPUnit_Framework_TestCase
     public function testDefaultFormat()
     {
         $formatter = new ChromePHPFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('from' => 'logger'),
+            'context' => ['from' => 'logger'],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('ip' => '127.0.0.1'),
+            'extra' => ['ip' => '127.0.0.1'],
             'message' => 'log',
-        );
+        ];
 
         $message = $formatter->format($record);
 
         $this->assertEquals(
-            array(
+            [
                 'meh',
-                array(
+                [
                     'message' => 'log',
-                    'context' => array('from' => 'logger'),
-                    'extra' => array('ip' => '127.0.0.1'),
-                ),
+                    'context' => ['from' => 'logger'],
+                    'extra' => ['ip' => '127.0.0.1'],
+                ],
                 'unknown',
                 'error',
-            ),
+            ],
             $message
         );
     }
@@ -54,29 +54,29 @@ class ChromePHPFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithFileAndLine()
     {
         $formatter = new ChromePHPFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::CRITICAL,
             'level_name' => 'CRITICAL',
             'channel' => 'meh',
-            'context' => array('from' => 'logger'),
+            'context' => ['from' => 'logger'],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('ip' => '127.0.0.1', 'file' => 'test', 'line' => 14),
+            'extra' => ['ip' => '127.0.0.1', 'file' => 'test', 'line' => 14],
             'message' => 'log',
-        );
+        ];
 
         $message = $formatter->format($record);
 
         $this->assertEquals(
-            array(
+            [
                 'meh',
-                array(
+                [
                     'message' => 'log',
-                    'context' => array('from' => 'logger'),
-                    'extra' => array('ip' => '127.0.0.1'),
-                ),
+                    'context' => ['from' => 'logger'],
+                    'extra' => ['ip' => '127.0.0.1'],
+                ],
                 'test : 14',
                 'error',
-            ),
+            ],
             $message
         );
     }
@@ -87,25 +87,25 @@ class ChromePHPFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithoutContext()
     {
         $formatter = new ChromePHPFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::DEBUG,
             'level_name' => 'DEBUG',
             'channel' => 'meh',
-            'context' => array(),
+            'context' => [],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'log',
-        );
+        ];
 
         $message = $formatter->format($record);
 
         $this->assertEquals(
-            array(
+            [
                 'meh',
                 'log',
                 'unknown',
                 'log',
-            ),
+            ],
             $message
         );
     }
@@ -116,42 +116,42 @@ class ChromePHPFormatterTest extends \PHPUnit_Framework_TestCase
     public function testBatchFormatThrowException()
     {
         $formatter = new ChromePHPFormatter();
-        $records = array(
-            array(
+        $records = [
+            [
                 'level' => Logger::INFO,
                 'level_name' => 'INFO',
                 'channel' => 'meh',
-                'context' => array(),
+                'context' => [],
                 'datetime' => new \DateTimeImmutable("@0"),
-                'extra' => array(),
+                'extra' => [],
                 'message' => 'log',
-            ),
-            array(
+            ],
+            [
                 'level' => Logger::WARNING,
                 'level_name' => 'WARNING',
                 'channel' => 'foo',
-                'context' => array(),
+                'context' => [],
                 'datetime' => new \DateTimeImmutable("@0"),
-                'extra' => array(),
+                'extra' => [],
                 'message' => 'log2',
-            ),
-        );
+            ],
+        ];
 
         $this->assertEquals(
-            array(
-                array(
+            [
+                [
                     'meh',
                     'log',
                     'unknown',
                     'info',
-                ),
-                array(
+                ],
+                [
                     'foo',
                     'log2',
                     'unknown',
                     'warn',
-                ),
-            ),
+                ],
+            ],
             $formatter->formatBatch($records)
         );
     }
diff --git a/tests/Monolog/Formatter/ElasticaFormatterTest.php b/tests/Monolog/Formatter/ElasticaFormatterTest.php
index 9ad94fe2..17c43d5c 100644
--- a/tests/Monolog/Formatter/ElasticaFormatterTest.php
+++ b/tests/Monolog/Formatter/ElasticaFormatterTest.php
@@ -30,24 +30,24 @@ class ElasticaFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormat()
     {
         // test log message
-        $msg = array(
+        $msg = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('foo' => 7, 'bar', 'class' => new \stdClass),
+            'context' => ['foo' => 7, 'bar', 'class' => new \stdClass],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'log',
-        );
+        ];
 
         // expected values
         $expected = $msg;
         $expected['datetime'] = '1970-01-01T00:00:00.000000+00:00';
-        $expected['context'] = array(
+        $expected['context'] = [
             'class' => ['stdClass' => []],
             'foo' => 7,
             0 => 'bar',
-        );
+        ];
 
         // format log message
         $formatter = new ElasticaFormatter('my_index', 'doc_type');
diff --git a/tests/Monolog/Formatter/FlowdockFormatterTest.php b/tests/Monolog/Formatter/FlowdockFormatterTest.php
index 15a4d7c7..cf5b416f 100644
--- a/tests/Monolog/Formatter/FlowdockFormatterTest.php
+++ b/tests/Monolog/Formatter/FlowdockFormatterTest.php
@@ -24,14 +24,14 @@ class FlowdockFormatterTest extends TestCase
         $formatter = new FlowdockFormatter('test_source', 'source@test.com');
         $record = $this->getRecord();
 
-        $expected = array(
+        $expected = [
             'source' => 'test_source',
             'from_address' => 'source@test.com',
             'subject' => 'in test_source: WARNING - test',
             'content' => 'test',
-            'tags' => array('#logs', '#warning', '#test'),
+            'tags' => ['#logs', '#warning', '#test'],
             'project' => 'test_source',
-        );
+        ];
         $formatted = $formatter->format($record);
 
         $this->assertEquals($expected, $formatted['flowdock']);
@@ -43,10 +43,10 @@ class FlowdockFormatterTest extends TestCase
     public function testFormatBatch()
     {
         $formatter = new FlowdockFormatter('test_source', 'source@test.com');
-        $records = array(
+        $records = [
             $this->getRecord(Logger::WARNING),
             $this->getRecord(Logger::DEBUG),
-        );
+        ];
         $formatted = $formatter->formatBatch($records);
 
         $this->assertArrayHasKey('flowdock', $formatted[0]);
diff --git a/tests/Monolog/Formatter/GelfMessageFormatterTest.php b/tests/Monolog/Formatter/GelfMessageFormatterTest.php
index 34021fb7..2b61387d 100644
--- a/tests/Monolog/Formatter/GelfMessageFormatterTest.php
+++ b/tests/Monolog/Formatter/GelfMessageFormatterTest.php
@@ -28,15 +28,15 @@ class GelfMessageFormatterTest extends \PHPUnit_Framework_TestCase
     public function testDefaultFormatter()
     {
         $formatter = new GelfMessageFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array(),
+            'context' => [],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'log',
-        );
+        ];
 
         $message = $formatter->format($record);
 
@@ -63,15 +63,15 @@ class GelfMessageFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithFileAndLine()
     {
         $formatter = new GelfMessageFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('from' => 'logger'),
+            'context' => ['from' => 'logger'],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('file' => 'test', 'line' => 14),
+            'extra' => ['file' => 'test', 'line' => 14],
             'message' => 'log',
-        );
+        ];
 
         $message = $formatter->format($record);
 
@@ -87,10 +87,10 @@ class GelfMessageFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatInvalidFails()
     {
         $formatter = new GelfMessageFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
-        );
+        ];
 
         $formatter->format($record);
     }
@@ -101,15 +101,15 @@ class GelfMessageFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithContext()
     {
         $formatter = new GelfMessageFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('from' => 'logger'),
+            'context' => ['from' => 'logger'],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('key' => 'pair'),
+            'extra' => ['key' => 'pair'],
             'message' => 'log',
-        );
+        ];
 
         $message = $formatter->format($record);
 
@@ -138,19 +138,19 @@ class GelfMessageFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithContextContainingException()
     {
         $formatter = new GelfMessageFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('from' => 'logger', 'exception' => array(
+            'context' => ['from' => 'logger', 'exception' => [
                 'class' => '\Exception',
                 'file'  => '/some/file/in/dir.php:56',
-                'trace' => array('/some/file/1.php:23', '/some/file/2.php:3'),
-            )),
+                'trace' => ['/some/file/1.php:23', '/some/file/2.php:3'],
+            ]],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'log',
-        );
+        ];
 
         $message = $formatter->format($record);
 
@@ -166,15 +166,15 @@ class GelfMessageFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithExtra()
     {
         $formatter = new GelfMessageFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('from' => 'logger'),
+            'context' => ['from' => 'logger'],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('key' => 'pair'),
+            'extra' => ['key' => 'pair'],
             'message' => 'log',
-        );
+        ];
 
         $message = $formatter->format($record);
 
@@ -200,15 +200,15 @@ class GelfMessageFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithLargeData()
     {
         $formatter = new GelfMessageFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('exception' => str_repeat(' ', 32767)),
+            'context' => ['exception' => str_repeat(' ', 32767)],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('key' => str_repeat(' ', 32767)),
-            'message' => 'log'
-        );
+            'extra' => ['key' => str_repeat(' ', 32767)],
+            'message' => 'log',
+        ];
         $message = $formatter->format($record);
         $messageArray = $message->toArray();
 
@@ -216,7 +216,7 @@ class GelfMessageFormatterTest extends \PHPUnit_Framework_TestCase
         $length = 200;
 
         foreach ($messageArray as $key => $value) {
-            if (!in_array($key, array('level', 'timestamp'))) {
+            if (!in_array($key, ['level', 'timestamp'])) {
                 $length += strlen($value);
             }
         }
diff --git a/tests/Monolog/Formatter/JsonFormatterTest.php b/tests/Monolog/Formatter/JsonFormatterTest.php
index 2b6d1650..2a0b8d17 100644
--- a/tests/Monolog/Formatter/JsonFormatterTest.php
+++ b/tests/Monolog/Formatter/JsonFormatterTest.php
@@ -52,10 +52,10 @@ class JsonFormatterTest extends TestCase
     public function testFormatBatch()
     {
         $formatter = new JsonFormatter();
-        $records = array(
+        $records = [
             $this->getRecord(Logger::WARNING),
             $this->getRecord(Logger::DEBUG),
-        );
+        ];
         $this->assertEquals(json_encode($records), $formatter->formatBatch($records));
     }
 
@@ -66,10 +66,10 @@ class JsonFormatterTest extends TestCase
     public function testFormatBatchNewlines()
     {
         $formatter = new JsonFormatter(JsonFormatter::BATCH_MODE_NEWLINES);
-        $records = $expected = array(
+        $records = $expected = [
             $this->getRecord(Logger::WARNING),
             $this->getRecord(Logger::DEBUG),
-        );
+        ];
         array_walk($expected, function (&$value, $key) {
             $value = json_encode($value);
         });
@@ -80,14 +80,14 @@ class JsonFormatterTest extends TestCase
     {
         $formatter = new JsonFormatter();
         $exception = new \RuntimeException('Foo');
-        $message = $formatter->format(array(
+        $message = $formatter->format([
             'level_name' => 'CRITICAL',
             'channel' => 'core',
-            'context' => array('exception' => $exception),
+            'context' => ['exception' => $exception],
             'datetime' => new \DateTimeImmutable(),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'foobar',
-        ));
+        ]);
 
         if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
             $path = substr(json_encode($exception->getFile(), JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), 1, -1);
@@ -101,14 +101,14 @@ class JsonFormatterTest extends TestCase
     {
         $formatter = new JsonFormatter();
         $exception = new \RuntimeException('Foo', 0, new \LogicException('Wut?'));
-        $message = $formatter->format(array(
+        $message = $formatter->format([
             'level_name' => 'CRITICAL',
             'channel' => 'core',
-            'context' => array('exception' => $exception),
+            'context' => ['exception' => $exception],
             'datetime' => new \DateTimeImmutable(),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'foobar',
-        ));
+        ]);
 
         if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
             $pathPrevious = substr(json_encode($exception->getPrevious()->getFile(), JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), 1, -1);
diff --git a/tests/Monolog/Formatter/LineFormatterTest.php b/tests/Monolog/Formatter/LineFormatterTest.php
index 67670d4f..efb90b61 100644
--- a/tests/Monolog/Formatter/LineFormatterTest.php
+++ b/tests/Monolog/Formatter/LineFormatterTest.php
@@ -19,103 +19,103 @@ class LineFormatterTest extends \PHPUnit_Framework_TestCase
     public function testDefFormatWithString()
     {
         $formatter = new LineFormatter(null, 'Y-m-d');
-        $message = $formatter->format(array(
+        $message = $formatter->format([
             'level_name' => 'WARNING',
             'channel' => 'log',
-            'context' => array(),
+            'context' => [],
             'message' => 'foo',
             'datetime' => new \DateTimeImmutable,
-            'extra' => array(),
-        ));
+            'extra' => [],
+        ]);
         $this->assertEquals('['.date('Y-m-d').'] log.WARNING: foo [] []'."\n", $message);
     }
 
     public function testDefFormatWithArrayContext()
     {
         $formatter = new LineFormatter(null, 'Y-m-d');
-        $message = $formatter->format(array(
+        $message = $formatter->format([
             'level_name' => 'ERROR',
             'channel' => 'meh',
             'message' => 'foo',
             'datetime' => new \DateTimeImmutable,
-            'extra' => array(),
-            'context' => array(
+            'extra' => [],
+            'context' => [
                 'foo' => 'bar',
                 'baz' => 'qux',
                 'bool' => false,
                 'null' => null,
-            ),
-        ));
+            ],
+        ]);
         $this->assertEquals('['.date('Y-m-d').'] meh.ERROR: foo {"foo":"bar","baz":"qux","bool":false,"null":null} []'."\n", $message);
     }
 
     public function testDefFormatExtras()
     {
         $formatter = new LineFormatter(null, 'Y-m-d');
-        $message = $formatter->format(array(
+        $message = $formatter->format([
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array(),
+            'context' => [],
             'datetime' => new \DateTimeImmutable,
-            'extra' => array('ip' => '127.0.0.1'),
+            'extra' => ['ip' => '127.0.0.1'],
             'message' => 'log',
-        ));
+        ]);
         $this->assertEquals('['.date('Y-m-d').'] meh.ERROR: log [] {"ip":"127.0.0.1"}'."\n", $message);
     }
 
     public function testFormatExtras()
     {
         $formatter = new LineFormatter("[%datetime%] %channel%.%level_name%: %message% %context% %extra.file% %extra%\n", 'Y-m-d');
-        $message = $formatter->format(array(
+        $message = $formatter->format([
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array(),
+            'context' => [],
             'datetime' => new \DateTimeImmutable,
-            'extra' => array('ip' => '127.0.0.1', 'file' => 'test'),
+            'extra' => ['ip' => '127.0.0.1', 'file' => 'test'],
             'message' => 'log',
-        ));
+        ]);
         $this->assertEquals('['.date('Y-m-d').'] meh.ERROR: log [] test {"ip":"127.0.0.1"}'."\n", $message);
     }
 
     public function testContextAndExtraOptionallyNotShownIfEmpty()
     {
         $formatter = new LineFormatter(null, 'Y-m-d', false, true);
-        $message = $formatter->format(array(
+        $message = $formatter->format([
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array(),
+            'context' => [],
             'datetime' => new \DateTimeImmutable,
-            'extra' => array(),
+            'extra' => [],
             'message' => 'log',
-        ));
+        ]);
         $this->assertEquals('['.date('Y-m-d').'] meh.ERROR: log  '."\n", $message);
     }
 
     public function testContextAndExtraReplacement()
     {
         $formatter = new LineFormatter('%context.foo% => %extra.foo%');
-        $message = $formatter->format(array(
+        $message = $formatter->format([
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('foo' => 'bar'),
+            'context' => ['foo' => 'bar'],
             'datetime' => new \DateTimeImmutable,
-            'extra' => array('foo' => 'xbar'),
+            'extra' => ['foo' => 'xbar'],
             'message' => 'log',
-        ));
+        ]);
         $this->assertEquals('bar => xbar', $message);
     }
 
     public function testDefFormatWithObject()
     {
         $formatter = new LineFormatter(null, 'Y-m-d');
-        $message = $formatter->format(array(
+        $message = $formatter->format([
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array(),
+            'context' => [],
             'datetime' => new \DateTimeImmutable,
-            'extra' => array('foo' => new TestFoo, 'bar' => new TestBar, 'baz' => array(), 'res' => fopen('php://memory', 'rb')),
+            'extra' => ['foo' => new TestFoo, 'bar' => new TestBar, 'baz' => [], 'res' => fopen('php://memory', 'rb')],
             'message' => 'foobar',
-        ));
+        ]);
 
         $this->assertEquals('['.date('Y-m-d').'] meh.ERROR: foobar [] {"foo":{"Monolog\\\\Formatter\\\\TestFoo":{"foo":"fooValue"}},"bar":{"Monolog\\\\Formatter\\\\TestBar":"bar"},"baz":[],"res":"[resource(stream)]"}'."\n", $message);
     }
@@ -123,14 +123,14 @@ class LineFormatterTest extends \PHPUnit_Framework_TestCase
     public function testDefFormatWithException()
     {
         $formatter = new LineFormatter(null, 'Y-m-d');
-        $message = $formatter->format(array(
+        $message = $formatter->format([
             'level_name' => 'CRITICAL',
             'channel' => 'core',
-            'context' => array('exception' => new \RuntimeException('Foo')),
+            'context' => ['exception' => new \RuntimeException('Foo')],
             'datetime' => new \DateTimeImmutable,
-            'extra' => array(),
+            'extra' => [],
             'message' => 'foobar',
-        ));
+        ]);
 
         $path = str_replace('\\/', '/', json_encode(__FILE__));
 
@@ -141,14 +141,14 @@ class LineFormatterTest extends \PHPUnit_Framework_TestCase
     {
         $formatter = new LineFormatter(null, 'Y-m-d');
         $previous = new \LogicException('Wut?');
-        $message = $formatter->format(array(
+        $message = $formatter->format([
             'level_name' => 'CRITICAL',
             'channel' => 'core',
-            'context' => array('exception' => new \RuntimeException('Foo', 0, $previous)),
+            'context' => ['exception' => new \RuntimeException('Foo', 0, $previous)],
             'datetime' => new \DateTimeImmutable,
-            'extra' => array(),
+            'extra' => [],
             'message' => 'foobar',
-        ));
+        ]);
 
         $path = str_replace('\\/', '/', json_encode(__FILE__));
 
@@ -158,24 +158,24 @@ class LineFormatterTest extends \PHPUnit_Framework_TestCase
     public function testBatchFormat()
     {
         $formatter = new LineFormatter(null, 'Y-m-d');
-        $message = $formatter->formatBatch(array(
-            array(
+        $message = $formatter->formatBatch([
+            [
                 'level_name' => 'CRITICAL',
                 'channel' => 'test',
                 'message' => 'bar',
-                'context' => array(),
+                'context' => [],
                 'datetime' => new \DateTimeImmutable,
-                'extra' => array(),
-            ),
-            array(
+                'extra' => [],
+            ],
+            [
                 'level_name' => 'WARNING',
                 'channel' => 'log',
                 'message' => 'foo',
-                'context' => array(),
+                'context' => [],
                 'datetime' => new \DateTimeImmutable,
-                'extra' => array(),
-            ),
-        ));
+                'extra' => [],
+            ],
+        ]);
         $this->assertEquals('['.date('Y-m-d').'] test.CRITICAL: bar [] []'."\n".'['.date('Y-m-d').'] log.WARNING: foo [] []'."\n", $message);
     }
 
@@ -183,11 +183,11 @@ class LineFormatterTest extends \PHPUnit_Framework_TestCase
     {
         $formatter = new LineFormatter(null, 'Y-m-d');
         $message = $formatter->format(
-            array(
+            [
                 'message' => "foo\nbar",
-                'context' => array(),
-                'extra' => array(),
-            )
+                'context' => [],
+                'extra' => [],
+            ]
         );
 
         $this->assertRegExp('/foo bar/', $message);
@@ -197,11 +197,11 @@ class LineFormatterTest extends \PHPUnit_Framework_TestCase
     {
         $formatter = new LineFormatter(null, 'Y-m-d', true);
         $message = $formatter->format(
-            array(
+            [
                 'message' => "foo\nbar",
-                'context' => array(),
-                'extra' => array(),
-            )
+                'context' => [],
+                'extra' => [],
+            ]
         );
 
         $this->assertRegExp('/foo\nbar/', $message);
diff --git a/tests/Monolog/Formatter/LogstashFormatterTest.php b/tests/Monolog/Formatter/LogstashFormatterTest.php
index 2fb6bf4e..ed45100c 100644
--- a/tests/Monolog/Formatter/LogstashFormatterTest.php
+++ b/tests/Monolog/Formatter/LogstashFormatterTest.php
@@ -28,15 +28,15 @@ class LogstashFormatterTest extends \PHPUnit_Framework_TestCase
     public function testDefaultFormatterV1()
     {
         $formatter = new LogstashFormatter('test', 'hostname', null, 'ctxt_');
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array(),
+            'context' => [],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'log',
-        );
+        ];
 
         $message = json_decode($formatter->format($record), true);
 
@@ -61,15 +61,15 @@ class LogstashFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithFileAndLineV1()
     {
         $formatter = new LogstashFormatter('test', null, null, 'ctxt_');
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('from' => 'logger'),
+            'context' => ['from' => 'logger'],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('file' => 'test', 'line' => 14),
+            'extra' => ['file' => 'test', 'line' => 14],
             'message' => 'log',
-        );
+        ];
 
         $message = json_decode($formatter->format($record), true);
 
@@ -83,15 +83,15 @@ class LogstashFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithContextV1()
     {
         $formatter = new LogstashFormatter('test', null, null, 'ctxt_');
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('from' => 'logger'),
+            'context' => ['from' => 'logger'],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('key' => 'pair'),
+            'extra' => ['key' => 'pair'],
             'message' => 'log',
-        );
+        ];
 
         $message = json_decode($formatter->format($record), true);
 
@@ -112,15 +112,15 @@ class LogstashFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithExtraV1()
     {
         $formatter = new LogstashFormatter('test', null, null, 'ctxt_');
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('from' => 'logger'),
+            'context' => ['from' => 'logger'],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('key' => 'pair'),
+            'extra' => ['key' => 'pair'],
             'message' => 'log',
-        );
+        ];
 
         $message = json_decode($formatter->format($record), true);
 
@@ -138,15 +138,15 @@ class LogstashFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithApplicationNameV1()
     {
         $formatter = new LogstashFormatter('app', 'test', null, 'ctxt_');
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('from' => 'logger'),
+            'context' => ['from' => 'logger'],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('key' => 'pair'),
+            'extra' => ['key' => 'pair'],
             'message' => 'log',
-        );
+        ];
 
         $message = json_decode($formatter->format($record), true);
 
@@ -157,17 +157,17 @@ class LogstashFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithLatin9Data()
     {
         $formatter = new LogstashFormatter('test', 'hostname');
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => '¯\_(ツ)_/¯',
-            'context' => array(),
+            'context' => [],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array(
+            'extra' => [
                 'user_agent' => "\xD6WN; FBCR/OrangeEspa\xF1a; Vers\xE3o/4.0; F\xE4rist",
-            ),
+            ],
             'message' => 'log',
-        );
+        ];
 
         $message = json_decode($formatter->format($record), true);
 
diff --git a/tests/Monolog/Formatter/MongoDBFormatterTest.php b/tests/Monolog/Formatter/MongoDBFormatterTest.php
index 84e75952..a66cedfe 100644
--- a/tests/Monolog/Formatter/MongoDBFormatterTest.php
+++ b/tests/Monolog/Formatter/MongoDBFormatterTest.php
@@ -27,10 +27,10 @@ class MongoDBFormatterTest extends \PHPUnit_Framework_TestCase
 
     public function constructArgumentProvider()
     {
-        return array(
-            array(1, true, 1, true),
-            array(0, false, 0, false),
-        );
+        return [
+            [1, true, 1, true],
+            [0, false, 0, false],
+        ];
     }
 
     /**
@@ -56,28 +56,28 @@ class MongoDBFormatterTest extends \PHPUnit_Framework_TestCase
 
     public function testSimpleFormat()
     {
-        $record = array(
+        $record = [
             'message' => 'some log message',
-            'context' => array(),
+            'context' => [],
             'level' => Logger::WARNING,
             'level_name' => Logger::getLevelName(Logger::WARNING),
             'channel' => 'test',
             'datetime' => new \DateTimeImmutable('2016-01-21T21:11:30.123456+00:00'),
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         $formatter = new MongoDBFormatter();
         $formattedRecord = $formatter->format($record);
 
         $this->assertCount(7, $formattedRecord);
         $this->assertEquals('some log message', $formattedRecord['message']);
-        $this->assertEquals(array(), $formattedRecord['context']);
+        $this->assertEquals([], $formattedRecord['context']);
         $this->assertEquals(Logger::WARNING, $formattedRecord['level']);
         $this->assertEquals(Logger::getLevelName(Logger::WARNING), $formattedRecord['level_name']);
         $this->assertEquals('test', $formattedRecord['channel']);
         $this->assertInstanceOf('MongoDB\BSON\UTCDateTime', $formattedRecord['datetime']);
         $this->assertEquals('1453410690123', $formattedRecord['datetime']->__toString());
-        $this->assertEquals(array(), $formattedRecord['extra']);
+        $this->assertEquals([], $formattedRecord['extra']);
     }
 
     public function testRecursiveFormat()
@@ -86,21 +86,21 @@ class MongoDBFormatterTest extends \PHPUnit_Framework_TestCase
         $someObject->foo = 'something';
         $someObject->bar = 'stuff';
 
-        $record = array(
+        $record = [
             'message' => 'some log message',
-            'context' => array(
+            'context' => [
                 'stuff' => new \DateTimeImmutable('1969-01-21T21:11:30.123456+00:00'),
                 'some_object' => $someObject,
                 'context_string' => 'some string',
                 'context_int' => 123456,
                 'except' => new \Exception('exception message', 987),
-            ),
+            ],
             'level' => Logger::WARNING,
             'level_name' => Logger::getLevelName(Logger::WARNING),
             'channel' => 'test',
             'datetime' => new \DateTimeImmutable('2016-01-21T21:11:30.123456+00:00'),
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         $formatter = new MongoDBFormatter();
         $formattedRecord = $formatter->format($record);
@@ -110,11 +110,11 @@ class MongoDBFormatterTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals('-29731710123', $formattedRecord['context']['stuff']->__toString());
 
         $this->assertEquals(
-            array(
+            [
                 'foo' => 'something',
                 'bar' => 'stuff',
                 'class' => 'stdClass',
-            ),
+            ],
             $formattedRecord['context']['some_object']
         );
         $this->assertEquals('some string', $formattedRecord['context']['context_string']);
@@ -131,75 +131,75 @@ class MongoDBFormatterTest extends \PHPUnit_Framework_TestCase
 
     public function testFormatDepthArray()
     {
-        $record = array(
+        $record = [
             'message' => 'some log message',
-            'context' => array(
-                'nest2' => array(
+            'context' => [
+                'nest2' => [
                     'property' => 'anything',
-                    'nest3' => array(
+                    'nest3' => [
                         'nest4' => 'value',
                         'property' => 'nothing',
-                    ),
-                ),
-            ),
+                    ],
+                ],
+            ],
             'level' => Logger::WARNING,
             'level_name' => Logger::getLevelName(Logger::WARNING),
             'channel' => 'test',
             'datetime' => new \DateTimeImmutable('2016-01-21T21:11:30.123456+00:00'),
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         $formatter = new MongoDBFormatter(2);
         $formattedResult = $formatter->format($record);
 
         $this->assertEquals(
-            array(
-                'nest2' => array(
+            [
+                'nest2' => [
                     'property' => 'anything',
                     'nest3' => '[...]',
-                ),
-            ),
+                ],
+            ],
             $formattedResult['context']
         );
     }
 
     public function testFormatDepthArrayInfiniteNesting()
     {
-        $record = array(
+        $record = [
             'message' => 'some log message',
-            'context' => array(
-                'nest2' => array(
+            'context' => [
+                'nest2' => [
                     'property' => 'something',
-                    'nest3' => array(
+                    'nest3' => [
                         'property' => 'anything',
-                        'nest4' => array(
+                        'nest4' => [
                             'property' => 'nothing',
-                        ),
-                    ),
-                ),
-            ),
+                        ],
+                    ],
+                ],
+            ],
             'level' => Logger::WARNING,
             'level_name' => Logger::getLevelName(Logger::WARNING),
             'channel' => 'test',
             'datetime' => new \DateTimeImmutable('2016-01-21T21:11:30.123456+00:00'),
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         $formatter = new MongoDBFormatter(0);
         $formattedResult = $formatter->format($record);
 
         $this->assertEquals(
-            array(
-                'nest2' => array(
+            [
+                'nest2' => [
                     'property' => 'something',
-                    'nest3' => array(
+                    'nest3' => [
                         'property' => 'anything',
-                        'nest4' => array(
+                        'nest4' => [
                             'property' => 'nothing',
-                        ),
-                    ),
-                ),
-            ),
+                        ],
+                    ],
+                ],
+            ],
             $formattedResult['context']
         );
     }
@@ -212,46 +212,46 @@ class MongoDBFormatterTest extends \PHPUnit_Framework_TestCase
         $someObject->nest3->property = 'nothing';
         $someObject->nest3->nest4 = 'invisible';
 
-        $record = array(
+        $record = [
             'message' => 'some log message',
-            'context' => array(
+            'context' => [
                 'nest2' => $someObject,
-            ),
+            ],
             'level' => Logger::WARNING,
             'level_name' => Logger::getLevelName(Logger::WARNING),
             'channel' => 'test',
             'datetime' => new \DateTimeImmutable('2016-01-21T21:11:30.123456+00:00'),
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         $formatter = new MongoDBFormatter(2, true);
         $formattedResult = $formatter->format($record);
 
         $this->assertEquals(
-            array(
-                'nest2' => array(
+            [
+                'nest2' => [
                     'property' => 'anything',
                     'nest3' => '[...]',
                     'class' => 'stdClass',
-                ),
-            ),
+                ],
+            ],
             $formattedResult['context']
         );
     }
 
     public function testFormatDepthException()
     {
-        $record = array(
+        $record = [
             'message' => 'some log message',
-            'context' => array(
+            'context' => [
                 'nest2' => new \Exception('exception message', 987),
-            ),
+            ],
             'level' => Logger::WARNING,
             'level_name' => Logger::getLevelName(Logger::WARNING),
             'channel' => 'test',
             'datetime' => new \DateTimeImmutable('2016-01-21T21:11:30.123456+00:00'),
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         $formatter = new MongoDBFormatter(2, false);
         $formattedRecord = $formatter->format($record);
diff --git a/tests/Monolog/Formatter/NormalizerFormatterTest.php b/tests/Monolog/Formatter/NormalizerFormatterTest.php
index ff481c7a..4d929c75 100644
--- a/tests/Monolog/Formatter/NormalizerFormatterTest.php
+++ b/tests/Monolog/Formatter/NormalizerFormatterTest.php
@@ -26,40 +26,40 @@ class NormalizerFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormat()
     {
         $formatter = new NormalizerFormatter('Y-m-d');
-        $formatted = $formatter->format(array(
+        $formatted = $formatter->format([
             'level_name' => 'ERROR',
             'channel' => 'meh',
             'message' => 'foo',
             'datetime' => new \DateTimeImmutable,
-            'extra' => array('foo' => new TestFooNorm, 'bar' => new TestBarNorm, 'baz' => array(), 'res' => fopen('php://memory', 'rb')),
-            'context' => array(
+            'extra' => ['foo' => new TestFooNorm, 'bar' => new TestBarNorm, 'baz' => [], 'res' => fopen('php://memory', 'rb')],
+            'context' => [
                 'foo' => 'bar',
                 'baz' => 'qux',
                 'inf' => INF,
                 '-inf' => -INF,
                 'nan' => acos(4),
-            ),
-        ));
+            ],
+        ]);
 
-        $this->assertEquals(array(
+        $this->assertEquals([
             'level_name' => 'ERROR',
             'channel' => 'meh',
             'message' => 'foo',
             'datetime' => date('Y-m-d'),
-            'extra' => array(
+            'extra' => [
                 'foo' => ['Monolog\\Formatter\\TestFooNorm' => ["foo" => "fooValue"]],
                 'bar' => ['Monolog\\Formatter\\TestBarNorm' => 'bar'],
-                'baz' => array(),
+                'baz' => [],
                 'res' => '[resource(stream)]',
-            ),
-            'context' => array(
+            ],
+            'context' => [
                 'foo' => 'bar',
                 'baz' => 'qux',
                 'inf' => 'INF',
                 '-inf' => '-INF',
                 'nan' => 'NaN',
-            ),
-        ), $formatted);
+            ],
+        ], $formatted);
     }
 
     public function testFormatExceptions()
@@ -67,72 +67,72 @@ class NormalizerFormatterTest extends \PHPUnit_Framework_TestCase
         $formatter = new NormalizerFormatter('Y-m-d');
         $e = new \LogicException('bar');
         $e2 = new \RuntimeException('foo', 0, $e);
-        $formatted = $formatter->format(array(
+        $formatted = $formatter->format([
             'exception' => $e2,
-        ));
+        ]);
 
         $this->assertGreaterThan(5, count($formatted['exception']['trace']));
         $this->assertTrue(isset($formatted['exception']['previous']));
         unset($formatted['exception']['trace'], $formatted['exception']['previous']);
 
-        $this->assertEquals(array(
-            'exception' => array(
+        $this->assertEquals([
+            'exception' => [
                 'class'   => get_class($e2),
                 'message' => $e2->getMessage(),
                 'code'    => $e2->getCode(),
                 'file'    => $e2->getFile().':'.$e2->getLine(),
-            ),
-        ), $formatted);
+            ],
+        ], $formatted);
     }
 
     public function testFormatToStringExceptionHandle()
     {
         $formatter = new NormalizerFormatter('Y-m-d');
         $this->setExpectedException('RuntimeException', 'Could not convert to string');
-        $formatter->format(array(
+        $formatter->format([
             'myObject' => new TestToStringError(),
-        ));
+        ]);
     }
 
     public function testBatchFormat()
     {
         $formatter = new NormalizerFormatter('Y-m-d');
-        $formatted = $formatter->formatBatch(array(
-            array(
+        $formatted = $formatter->formatBatch([
+            [
                 'level_name' => 'CRITICAL',
                 'channel' => 'test',
                 'message' => 'bar',
-                'context' => array(),
+                'context' => [],
                 'datetime' => new \DateTimeImmutable,
-                'extra' => array(),
-            ),
-            array(
+                'extra' => [],
+            ],
+            [
                 'level_name' => 'WARNING',
                 'channel' => 'log',
                 'message' => 'foo',
-                'context' => array(),
+                'context' => [],
                 'datetime' => new \DateTimeImmutable,
-                'extra' => array(),
-            ),
-        ));
-        $this->assertEquals(array(
-            array(
+                'extra' => [],
+            ],
+        ]);
+        $this->assertEquals([
+            [
                 'level_name' => 'CRITICAL',
                 'channel' => 'test',
                 'message' => 'bar',
-                'context' => array(),
+                'context' => [],
                 'datetime' => date('Y-m-d'),
-                'extra' => array(),
-            ),
-            array(
+                'extra' => [],
+            ],
+            [
                 'level_name' => 'WARNING',
                 'channel' => 'log',
                 'message' => 'foo',
-                'context' => array(),
+                'context' => [],
                 'datetime' => date('Y-m-d'),
-                'extra' => array(),
-            ),
-        ), $formatted);
+                'extra' => [],
+            ],
+        ], $formatted);
     }
 
     /**
@@ -159,11 +159,11 @@ class NormalizerFormatterTest extends \PHPUnit_Framework_TestCase
         $formatter = new NormalizerFormatter();
         $reflMethod = new \ReflectionMethod($formatter, 'toJson');
         $reflMethod->setAccessible(true);
-        $res = $reflMethod->invoke($formatter, array($foo, $bar), true);
+        $res = $reflMethod->invoke($formatter, [$foo, $bar], true);
 
         restore_error_handler();
 
-        $this->assertEquals(@json_encode(array($foo, $bar)), $res);
+        $this->assertEquals(@json_encode([$foo, $bar]), $res);
     }
 
     public function testIgnoresInvalidTypes()
@@ -183,11 +183,11 @@ class NormalizerFormatterTest extends \PHPUnit_Framework_TestCase
         $formatter = new NormalizerFormatter();
         $reflMethod = new \ReflectionMethod($formatter, 'toJson');
         $reflMethod->setAccessible(true);
-        $res = $reflMethod->invoke($formatter, array($resource), true);
+        $res = $reflMethod->invoke($formatter, [$resource], true);
 
         restore_error_handler();
 
-        $this->assertEquals(@json_encode(array($resource)), $res);
+        $this->assertEquals(@json_encode([$resource]), $res);
     }
 
     /**
@@ -211,7 +211,7 @@ class NormalizerFormatterTest extends \PHPUnit_Framework_TestCase
         $reflMethod = new \ReflectionMethod($formatter, 'toJson');
         $reflMethod->setAccessible(true);
 
-        $res = $reflMethod->invoke($formatter, array('message' => "\xA4\xA6\xA8\xB4\xB8\xBC\xBD\xBE"));
+        $res = $reflMethod->invoke($formatter, ['message' => "\xA4\xA6\xA8\xB4\xB8\xBC\xBD\xBE"]);
 
         $this->assertSame('{"message":"€ŠšŽžŒœŸ"}', $res);
     }
@@ -233,19 +233,19 @@ class NormalizerFormatterTest extends \PHPUnit_Framework_TestCase
     {
         $obj = new \stdClass;
 
-        return array(
-            'null' => array(null, null),
-            'int' => array(123, 123),
-            'float' => array(123.45, 123.45),
-            'bool false' => array(false, false),
-            'bool true' => array(true, true),
-            'ascii string' => array('abcdef', 'abcdef'),
-            'latin9 string' => array("\xB1\x31\xA4\xA6\xA8\xB4\xB8\xBC\xBD\xBE\xFF", '±1€ŠšŽžŒœŸÿ'),
-            'unicode string' => array('¤¦¨´¸¼½¾€ŠšŽžŒœŸ', '¤¦¨´¸¼½¾€ŠšŽžŒœŸ'),
-            'empty array' => array(array(), array()),
-            'array' => array(array('abcdef'), array('abcdef')),
-            'object' => array($obj, $obj),
-        );
+        return [
+            'null' => [null, null],
+            'int' => [123, 123],
+            'float' => [123.45, 123.45],
+            'bool false' => [false, false],
+            'bool true' => [true, true],
+            'ascii string' => ['abcdef', 'abcdef'],
+            'latin9 string' => ["\xB1\x31\xA4\xA6\xA8\xB4\xB8\xBC\xBD\xBE\xFF", '±1€ŠšŽžŒœŸÿ'],
+            'unicode string' => ['¤¦¨´¸¼½¾€ŠšŽžŒœŸ', '¤¦¨´¸¼½¾€ŠšŽžŒœŸ'],
+            'empty array' => [[], []],
+            'array' => [['abcdef'], ['abcdef']],
+            'object' => [$obj, $obj],
+        ];
     }
 
     /**
@@ -265,12 +265,12 @@ class NormalizerFormatterTest extends \PHPUnit_Framework_TestCase
 
     public function providesHandleJsonErrorFailure()
     {
-        return array(
-            'depth' => array(JSON_ERROR_DEPTH, 'Maximum stack depth exceeded'),
-            'state' => array(JSON_ERROR_STATE_MISMATCH, 'Underflow or the modes mismatch'),
-            'ctrl' => array(JSON_ERROR_CTRL_CHAR, 'Unexpected control character found'),
-            'default' => array(-1, 'Unknown error'),
-        );
+        return [
+            'depth' => [JSON_ERROR_DEPTH, 'Maximum stack depth exceeded'],
+            'state' => [JSON_ERROR_STATE_MISMATCH, 'Underflow or the modes mismatch'],
+            'ctrl' => [JSON_ERROR_CTRL_CHAR, 'Unexpected control character found'],
+            'default' => [-1, 'Unknown error'],
+        ];
     }
 
     public function testExceptionTraceWithArgs()
@@ -298,7 +298,7 @@ class NormalizerFormatterTest extends \PHPUnit_Framework_TestCase
         }
 
         $formatter = new NormalizerFormatter();
-        $record = array('context' => array('exception' => $e));
+        $record = ['context' => ['exception' => $e]];
         $result = $formatter->format($record);
 
         $this->assertRegExp(
diff --git a/tests/Monolog/Formatter/ScalarFormatterTest.php b/tests/Monolog/Formatter/ScalarFormatterTest.php
index 96d92b55..73707d9b 100644
--- a/tests/Monolog/Formatter/ScalarFormatterTest.php
+++ b/tests/Monolog/Formatter/ScalarFormatterTest.php
@@ -24,7 +24,7 @@ class ScalarFormatterTest extends \PHPUnit_Framework_TestCase
 
     public function buildTrace(\Exception $e)
     {
-        $data = array();
+        $data = [];
         $trace = $e->getTrace();
         foreach ($trace as $frame) {
             if (isset($frame['file'])) {
@@ -45,64 +45,64 @@ class ScalarFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormat()
     {
         $exception = new \Exception('foo');
-        $formatted = $this->formatter->format(array(
+        $formatted = $this->formatter->format([
             'foo' => 'string',
             'bar' => 1,
             'baz' => false,
-            'bam' => array(1, 2, 3),
-            'bat' => array('foo' => 'bar'),
+            'bam' => [1, 2, 3],
+            'bat' => ['foo' => 'bar'],
             'bap' => $dt = new DateTimeImmutable(true),
             'ban' => $exception,
-        ));
+        ]);
 
-        $this->assertSame(array(
+        $this->assertSame([
             'foo' => 'string',
             'bar' => 1,
             'baz' => false,
-            'bam' => $this->encodeJson(array(1, 2, 3)),
-            'bat' => $this->encodeJson(array('foo' => 'bar')),
+            'bam' => $this->encodeJson([1, 2, 3]),
+            'bat' => $this->encodeJson(['foo' => 'bar']),
             'bap' => (string) $dt,
-            'ban' => $this->encodeJson(array(
+            'ban' => $this->encodeJson([
                 'class'   => get_class($exception),
                 'message' => $exception->getMessage(),
                 'code'    => $exception->getCode(),
                 'file'    => $exception->getFile() . ':' . $exception->getLine(),
                 'trace'   => $this->buildTrace($exception),
-            )),
-        ), $formatted);
+            ]),
+        ], $formatted);
     }
 
     public function testFormatWithErrorContext()
     {
-        $context = array('file' => 'foo', 'line' => 1);
-        $formatted = $this->formatter->format(array(
+        $context = ['file' => 'foo', 'line' => 1];
+        $formatted = $this->formatter->format([
             'context' => $context,
-        ));
+        ]);
 
-        $this->assertSame(array(
+        $this->assertSame([
             'context' => $this->encodeJson($context),
-        ), $formatted);
+        ], $formatted);
     }
 
     public function testFormatWithExceptionContext()
     {
         $exception = new \Exception('foo');
-        $formatted = $this->formatter->format(array(
-            'context' => array(
+        $formatted = $this->formatter->format([
+            'context' => [
                 'exception' => $exception,
-            ),
-        ));
+            ],
+        ]);
 
-        $this->assertSame(array(
-            'context' => $this->encodeJson(array(
-                'exception' => array(
+        $this->assertSame([
+            'context' => $this->encodeJson([
+                'exception' => [
                     'class'   => get_class($exception),
                     'message' => $exception->getMessage(),
                     'code'    => $exception->getCode(),
                     'file'    => $exception->getFile() . ':' . $exception->getLine(),
                     'trace'   => $this->buildTrace($exception),
-                ),
-            )),
-        ), $formatted);
+                ],
+            ]),
+        ], $formatted);
     }
 }
diff --git a/tests/Monolog/Formatter/WildfireFormatterTest.php b/tests/Monolog/Formatter/WildfireFormatterTest.php
index 67d44d0c..0de8fd52 100644
--- a/tests/Monolog/Formatter/WildfireFormatterTest.php
+++ b/tests/Monolog/Formatter/WildfireFormatterTest.php
@@ -21,15 +21,15 @@ class WildfireFormatterTest extends \PHPUnit_Framework_TestCase
     public function testDefaultFormat()
     {
         $wildfire = new WildfireFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('from' => 'logger'),
+            'context' => ['from' => 'logger'],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('ip' => '127.0.0.1'),
+            'extra' => ['ip' => '127.0.0.1'],
             'message' => 'log',
-        );
+        ];
 
         $message = $wildfire->format($record);
 
@@ -46,15 +46,15 @@ class WildfireFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithFileAndLine()
     {
         $wildfire = new WildfireFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('from' => 'logger'),
+            'context' => ['from' => 'logger'],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array('ip' => '127.0.0.1', 'file' => 'test', 'line' => 14),
+            'extra' => ['ip' => '127.0.0.1', 'file' => 'test', 'line' => 14],
             'message' => 'log',
-        );
+        ];
 
         $message = $wildfire->format($record);
 
@@ -71,15 +71,15 @@ class WildfireFormatterTest extends \PHPUnit_Framework_TestCase
     public function testFormatWithoutContext()
     {
         $wildfire = new WildfireFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array(),
+            'context' => [],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'log',
-        );
+        ];
 
         $message = $wildfire->format($record);
 
@@ -96,17 +96,17 @@ class WildfireFormatterTest extends \PHPUnit_Framework_TestCase
     public function testBatchFormatThrowException()
     {
         $wildfire = new WildfireFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array(),
+            'context' => [],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'log',
-        );
+        ];
 
-        $wildfire->formatBatch(array($record));
+        $wildfire->formatBatch([$record]);
     }
 
     /**
@@ -115,22 +115,22 @@ class WildfireFormatterTest extends \PHPUnit_Framework_TestCase
     public function testTableFormat()
     {
         $wildfire = new WildfireFormatter();
-        $record = array(
+        $record = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'table-channel',
-            'context' => array(
-            WildfireFormatter::TABLE => array(
-                    array('col1', 'col2', 'col3'),
-                    array('val1', 'val2', 'val3'),
-                    array('foo1', 'foo2', 'foo3'),
-                    array('bar1', 'bar2', 'bar3'),
-                ),
-            ),
+            'context' => [
+            WildfireFormatter::TABLE => [
+                    ['col1', 'col2', 'col3'],
+                    ['val1', 'val2', 'val3'],
+                    ['foo1', 'foo2', 'foo3'],
+                    ['bar1', 'bar2', 'bar3'],
+                ],
+            ],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'table-message',
-        );
+        ];
 
         $message = $wildfire->format($record);
 
diff --git a/tests/Monolog/Handler/AbstractHandlerTest.php b/tests/Monolog/Handler/AbstractHandlerTest.php
index 71527b84..2cbcdcf0 100644
--- a/tests/Monolog/Handler/AbstractHandlerTest.php
+++ b/tests/Monolog/Handler/AbstractHandlerTest.php
@@ -25,7 +25,7 @@ class AbstractHandlerTest extends TestCase
      */
     public function testConstructAndGetSet()
     {
-        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractHandler', array(Logger::WARNING, false));
+        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractHandler', [Logger::WARNING, false]);
         $this->assertEquals(Logger::WARNING, $handler->getLevel());
         $this->assertEquals(false, $handler->getBubble());
 
@@ -43,7 +43,7 @@ class AbstractHandlerTest extends TestCase
         $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractHandler');
         $handler->expects($this->exactly(2))
             ->method('handle');
-        $handler->handleBatch(array($this->getRecord(), $this->getRecord()));
+        $handler->handleBatch([$this->getRecord(), $this->getRecord()]);
     }
 
     /**
@@ -51,7 +51,7 @@ class AbstractHandlerTest extends TestCase
      */
     public function testIsHandling()
     {
-        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractHandler', array(Logger::WARNING, false));
+        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractHandler', [Logger::WARNING, false]);
         $this->assertTrue($handler->isHandling($this->getRecord()));
         $this->assertFalse($handler->isHandling($this->getRecord(Logger::DEBUG)));
     }
@@ -61,7 +61,7 @@ class AbstractHandlerTest extends TestCase
      */
     public function testHandlesPsrStyleLevels()
     {
-        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractHandler', array('warning', false));
+        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractHandler', ['warning', false]);
         $this->assertFalse($handler->isHandling($this->getRecord(Logger::DEBUG)));
         $handler->setLevel('debug');
         $this->assertTrue($handler->isHandling($this->getRecord(Logger::DEBUG)));
diff --git a/tests/Monolog/Handler/AbstractProcessingHandlerTest.php b/tests/Monolog/Handler/AbstractProcessingHandlerTest.php
index e65fa3e1..435e770c 100644
--- a/tests/Monolog/Handler/AbstractProcessingHandlerTest.php
+++ b/tests/Monolog/Handler/AbstractProcessingHandlerTest.php
@@ -24,7 +24,7 @@ class AbstractProcessingHandlerTest extends TestCase
      */
     public function testConstructAndGetSet()
     {
-        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractProcessingHandler', array(Logger::WARNING, false));
+        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractProcessingHandler', [Logger::WARNING, false]);
         $handler->setFormatter($formatter = new LineFormatter);
         $this->assertSame($formatter, $handler->getFormatter());
     }
@@ -34,7 +34,7 @@ class AbstractProcessingHandlerTest extends TestCase
      */
     public function testHandleLowerLevelMessage()
     {
-        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractProcessingHandler', array(Logger::WARNING, true));
+        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractProcessingHandler', [Logger::WARNING, true]);
         $this->assertFalse($handler->handle($this->getRecord(Logger::DEBUG)));
     }
 
@@ -43,7 +43,7 @@ class AbstractProcessingHandlerTest extends TestCase
      */
     public function testHandleBubbling()
     {
-        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractProcessingHandler', array(Logger::DEBUG, true));
+        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractProcessingHandler', [Logger::DEBUG, true]);
         $this->assertFalse($handler->handle($this->getRecord()));
     }
 
@@ -52,7 +52,7 @@ class AbstractProcessingHandlerTest extends TestCase
      */
     public function testHandleNotBubbling()
     {
-        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractProcessingHandler', array(Logger::DEBUG, false));
+        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractProcessingHandler', [Logger::DEBUG, false]);
         $this->assertTrue($handler->handle($this->getRecord()));
     }
 
@@ -61,7 +61,7 @@ class AbstractProcessingHandlerTest extends TestCase
      */
     public function testHandleIsFalseWhenNotHandled()
     {
-        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractProcessingHandler', array(Logger::WARNING, false));
+        $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractProcessingHandler', [Logger::WARNING, false]);
         $this->assertTrue($handler->handle($this->getRecord()));
         $this->assertFalse($handler->handle($this->getRecord(Logger::DEBUG)));
     }
@@ -72,13 +72,13 @@ class AbstractProcessingHandlerTest extends TestCase
     public function testProcessRecord()
     {
         $handler = $this->getMockForAbstractClass('Monolog\Handler\AbstractProcessingHandler');
-        $handler->pushProcessor(new WebProcessor(array(
+        $handler->pushProcessor(new WebProcessor([
             'REQUEST_URI' => '',
             'REQUEST_METHOD' => '',
             'REMOTE_ADDR' => '',
             'SERVER_NAME' => '',
             'UNIQUE_ID' => '',
-        )));
+        ]));
         $handledRecord = null;
         $handler->expects($this->once())
             ->method('write')
diff --git a/tests/Monolog/Handler/AmqpHandlerTest.php b/tests/Monolog/Handler/AmqpHandlerTest.php
index c229868e..9a41c394 100644
--- a/tests/Monolog/Handler/AmqpHandlerTest.php
+++ b/tests/Monolog/Handler/AmqpHandlerTest.php
@@ -31,43 +31,43 @@ class AmqpHandlerTest extends TestCase
             $this->markTestSkipped("Please update AMQP to version >= 1.0");
         }
 
-        $messages = array();
+        $messages = [];
 
-        $exchange = $this->getMock('AMQPExchange', array('publish', 'setName'), array(), '', false);
+        $exchange = $this->getMock('AMQPExchange', ['publish', 'setName'], [], '', false);
         $exchange->expects($this->once())
             ->method('setName')
             ->with('log')
         ;
         $exchange->expects($this->any())
             ->method('publish')
-            ->will($this->returnCallback(function ($message, $routing_key, $flags = 0, $attributes = array()) use (&$messages) {
-                $messages[] = array($message, $routing_key, $flags, $attributes);
+            ->will($this->returnCallback(function ($message, $routing_key, $flags = 0, $attributes = []) use (&$messages) {
+                $messages[] = [$message, $routing_key, $flags, $attributes];
             }))
         ;
 
         $handler = new AmqpHandler($exchange, 'log');
 
-        $record = $this->getRecord(Logger::WARNING, 'test', array('data' => new \stdClass, 'foo' => 34));
+        $record = $this->getRecord(Logger::WARNING, 'test', ['data' => new \stdClass, 'foo' => 34]);
 
-        $expected = array(
-            array(
+        $expected = [
+            [
                 'message' => 'test',
-                'context' => array(
-                    'data' => array(),
+                'context' => [
+                    'data' => [],
                     'foo' => 34,
-                ),
+                ],
                 'level' => 300,
                 'level_name' => 'WARNING',
                 'channel' => 'test',
-                'extra' => array(),
-            ),
+                'extra' => [],
+            ],
             'warning.test',
             0,
-            array(
+            [
                 'delivery_mode' => 2,
                 'content_type' => 'application/json',
-            ),
-        );
+            ],
+        ];
 
         $handler->handle($record);
 
@@ -83,43 +83,43 @@ class AmqpHandlerTest extends TestCase
             $this->markTestSkipped("php-amqplib not installed");
         }
 
-        $messages = array();
+        $messages = [];
 
-        $exchange = $this->getMock('PhpAmqpLib\Channel\AMQPChannel', array('basic_publish', '__destruct'), array(), '', false);
+        $exchange = $this->getMock('PhpAmqpLib\Channel\AMQPChannel', ['basic_publish', '__destruct'], [], '', false);
 
         $exchange->expects($this->any())
             ->method('basic_publish')
             ->will($this->returnCallback(function (AMQPMessage $msg, $exchange = "", $routing_key = "", $mandatory = false, $immediate = false, $ticket = null) use (&$messages) {
-                $messages[] = array($msg, $exchange, $routing_key, $mandatory, $immediate, $ticket);
+                $messages[] = [$msg, $exchange, $routing_key, $mandatory, $immediate, $ticket];
             }))
         ;
 
         $handler = new AmqpHandler($exchange, 'log');
 
-        $record = $this->getRecord(Logger::WARNING, 'test', array('data' => new \stdClass, 'foo' => 34));
+        $record = $this->getRecord(Logger::WARNING, 'test', ['data' => new \stdClass, 'foo' => 34]);
 
-        $expected = array(
-            array(
+        $expected = [
+            [
                 'message' => 'test',
-                'context' => array(
-                    'data' => array(),
+                'context' => [
+                    'data' => [],
                     'foo' => 34,
-                ),
+                ],
                 'level' => 300,
                 'level_name' => 'WARNING',
                 'channel' => 'test',
-                'extra' => array(),
-            ),
+                'extra' => [],
+            ],
             'log',
             'warning.test',
             false,
             false,
             null,
-            array(
+            [
                 'delivery_mode' => 2,
                 'content_type' => 'application/json',
-            ),
-        );
+            ],
+        ];
 
         $handler->handle($record);
 
diff --git a/tests/Monolog/Handler/BrowserConsoleHandlerTest.php b/tests/Monolog/Handler/BrowserConsoleHandlerTest.php
index bcc155a4..2ee66a8a 100644
--- a/tests/Monolog/Handler/BrowserConsoleHandlerTest.php
+++ b/tests/Monolog/Handler/BrowserConsoleHandlerTest.php
@@ -89,7 +89,7 @@ EOF;
         $handler = new BrowserConsoleHandler();
         $handler->setFormatter($this->getIdentityFormatter());
 
-        $handler->handle($this->getRecord(Logger::DEBUG, 'test', array('foo' => 'bar')));
+        $handler->handle($this->getRecord(Logger::DEBUG, 'test', ['foo' => 'bar']));
 
         $expected = <<<EOF
 (function (c) {if (c && c.groupCollapsed) {
diff --git a/tests/Monolog/Handler/BufferHandlerTest.php b/tests/Monolog/Handler/BufferHandlerTest.php
index 7d2a73f3..391c2374 100644
--- a/tests/Monolog/Handler/BufferHandlerTest.php
+++ b/tests/Monolog/Handler/BufferHandlerTest.php
@@ -47,7 +47,7 @@ class BufferHandlerTest extends TestCase
         $handler->handle($this->getRecord(Logger::WARNING));
         $handler->handle($this->getRecord(Logger::DEBUG));
         $this->shutdownCheckHandler = $test;
-        register_shutdown_function(array($this, 'checkPropagation'));
+        register_shutdown_function([$this, 'checkPropagation']);
     }
 
     public function checkPropagation()
diff --git a/tests/Monolog/Handler/ChromePHPHandlerTest.php b/tests/Monolog/Handler/ChromePHPHandlerTest.php
index e0d52045..ac5e7c44 100644
--- a/tests/Monolog/Handler/ChromePHPHandlerTest.php
+++ b/tests/Monolog/Handler/ChromePHPHandlerTest.php
@@ -32,17 +32,17 @@ class ChromePHPHandlerTest extends TestCase
         $handler->handle($this->getRecord(Logger::DEBUG));
         $handler->handle($this->getRecord(Logger::WARNING));
 
-        $expected = array(
-            'X-ChromeLogger-Data'   => base64_encode(utf8_encode(json_encode(array(
+        $expected = [
+            'X-ChromeLogger-Data'   => base64_encode(utf8_encode(json_encode([
                 'version' => ChromePHPHandler::VERSION,
-                'columns' => array('label', 'log', 'backtrace', 'type'),
-                'rows' => array(
+                'columns' => ['label', 'log', 'backtrace', 'type'],
+                'rows' => [
                     'test',
                     'test',
-                ),
+                ],
                 'request_uri' => '',
-            )))),
-        );
+            ]))),
+        ];
 
         $this->assertEquals($expected, $handler->getHeaders());
     }
@@ -56,33 +56,33 @@ class ChromePHPHandlerTest extends TestCase
         // overflow chrome headers limit
         $handler->handle($this->getRecord(Logger::WARNING, str_repeat('a', 100 * 1024)));
 
-        $expected = array(
-            'X-ChromeLogger-Data'   => base64_encode(utf8_encode(json_encode(array(
+        $expected = [
+            'X-ChromeLogger-Data'   => base64_encode(utf8_encode(json_encode([
                 'version' => ChromePHPHandler::VERSION,
-                'columns' => array('label', 'log', 'backtrace', 'type'),
-                'rows' => array(
-                    array(
+                'columns' => ['label', 'log', 'backtrace', 'type'],
+                'rows' => [
+                    [
                         'test',
                         'test',
                         'unknown',
                         'log',
-                    ),
-                    array(
+                    ],
+                    [
                         'test',
                         str_repeat('a', 150 * 1024),
                         'unknown',
                         'warn',
-                    ),
-                    array(
+                    ],
+                    [
                         'monolog',
                         'Incomplete logs, chrome header size limit reached',
                         'unknown',
                         'warn',
-                    ),
-                ),
+                    ],
+                ],
                 'request_uri' => '',
-            )))),
-        );
+            ]))),
+        ];
 
         $this->assertEquals($expected, $handler->getHeaders());
     }
@@ -99,19 +99,19 @@ class ChromePHPHandlerTest extends TestCase
         $handler2->handle($this->getRecord(Logger::DEBUG));
         $handler2->handle($this->getRecord(Logger::WARNING));
 
-        $expected = array(
-            'X-ChromeLogger-Data'   => base64_encode(utf8_encode(json_encode(array(
+        $expected = [
+            'X-ChromeLogger-Data'   => base64_encode(utf8_encode(json_encode([
                 'version' => ChromePHPHandler::VERSION,
-                'columns' => array('label', 'log', 'backtrace', 'type'),
-                'rows' => array(
+                'columns' => ['label', 'log', 'backtrace', 'type'],
+                'rows' => [
                     'test',
                     'test',
                     'test',
                     'test',
-                ),
+                ],
                 'request_uri' => '',
-            )))),
-        );
+            ]))),
+        ];
 
         $this->assertEquals($expected, $handler2->getHeaders());
     }
@@ -119,14 +119,14 @@ class ChromePHPHandlerTest extends TestCase
 
 class TestChromePHPHandler extends ChromePHPHandler
 {
-    protected $headers = array();
+    protected $headers = [];
 
     public static function reset()
     {
         self::$initialized = false;
         self::$overflowed = false;
         self::$sendHeaders = true;
-        self::$json['rows'] = array();
+        self::$json['rows'] = [];
     }
 
     protected function sendHeader($header, $content)
diff --git a/tests/Monolog/Handler/CouchDBHandlerTest.php b/tests/Monolog/Handler/CouchDBHandlerTest.php
index f9e045a4..b0d6ade7 100644
--- a/tests/Monolog/Handler/CouchDBHandlerTest.php
+++ b/tests/Monolog/Handler/CouchDBHandlerTest.php
@@ -18,7 +18,7 @@ class CouchDBHandlerTest extends TestCase
 {
     public function testHandle()
     {
-        $record = $this->getRecord(Logger::WARNING, 'test', array('data' => new \stdClass, 'foo' => 34));
+        $record = $this->getRecord(Logger::WARNING, 'test', ['data' => new \stdClass, 'foo' => 34]);
 
         $handler = new CouchDBHandler();
 
diff --git a/tests/Monolog/Handler/DoctrineCouchDBHandlerTest.php b/tests/Monolog/Handler/DoctrineCouchDBHandlerTest.php
index 5718c412..05f8bf76 100644
--- a/tests/Monolog/Handler/DoctrineCouchDBHandlerTest.php
+++ b/tests/Monolog/Handler/DoctrineCouchDBHandlerTest.php
@@ -26,21 +26,21 @@ class DoctrineCouchDBHandlerTest extends TestCase
     public function testHandle()
     {
         $client = $this->getMockBuilder('Doctrine\\CouchDB\\CouchDBClient')
-            ->setMethods(array('postDocument'))
+            ->setMethods(['postDocument'])
             ->disableOriginalConstructor()
             ->getMock();
 
-        $record = $this->getRecord(Logger::WARNING, 'test', array('data' => new \stdClass, 'foo' => 34));
+        $record = $this->getRecord(Logger::WARNING, 'test', ['data' => new \stdClass, 'foo' => 34]);
 
-        $expected = array(
+        $expected = [
             'message' => 'test',
-            'context' => array('data' => ['stdClass' => []], 'foo' => 34),
+            'context' => ['data' => ['stdClass' => []], 'foo' => 34],
             'level' => Logger::WARNING,
             'level_name' => 'WARNING',
             'channel' => 'test',
             'datetime' => (string) $record['datetime'],
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         $client->expects($this->once())
             ->method('postDocument')
diff --git a/tests/Monolog/Handler/DynamoDbHandlerTest.php b/tests/Monolog/Handler/DynamoDbHandlerTest.php
index 61749981..cc99ad67 100644
--- a/tests/Monolog/Handler/DynamoDbHandlerTest.php
+++ b/tests/Monolog/Handler/DynamoDbHandlerTest.php
@@ -24,7 +24,7 @@ class DynamoDbHandlerTest extends TestCase
         }
 
         $this->client = $this->getMockBuilder('Aws\DynamoDb\DynamoDbClient')
-            ->setMethods(array('formatAttributes', '__call'))
+            ->setMethods(['formatAttributes', '__call'])
             ->disableOriginalConstructor()->getMock();
     }
 
@@ -48,7 +48,7 @@ class DynamoDbHandlerTest extends TestCase
     {
         $record = $this->getRecord();
         $formatter = $this->getMock('Monolog\Formatter\FormatterInterface');
-        $formatted = array('foo' => 1, 'bar' => 2);
+        $formatted = ['foo' => 1, 'bar' => 2];
         $handler = new DynamoDbHandler($this->client, 'foo');
         $handler->setFormatter($formatter);
 
@@ -65,10 +65,10 @@ class DynamoDbHandlerTest extends TestCase
         $this->client
              ->expects($this->once())
              ->method('__call')
-             ->with('putItem', array(array(
+             ->with('putItem', [[
                  'TableName' => 'foo',
                  'Item' => $formatted,
-             )));
+             ]]);
 
         $handler->handle($record);
     }
diff --git a/tests/Monolog/Handler/ElasticSearchHandlerTest.php b/tests/Monolog/Handler/ElasticSearchHandlerTest.php
index 54965c16..9ebf0623 100644
--- a/tests/Monolog/Handler/ElasticSearchHandlerTest.php
+++ b/tests/Monolog/Handler/ElasticSearchHandlerTest.php
@@ -29,10 +29,10 @@ class ElasticSearchHandlerTest extends TestCase
     /**
      * @var array Default handler options
      */
-    protected $options = array(
+    protected $options = [
         'index' => 'my_index',
         'type'  => 'doc_type',
-    );
+    ];
 
     public function setUp()
     {
@@ -43,7 +43,7 @@ class ElasticSearchHandlerTest extends TestCase
 
         // base mock Elastica Client object
         $this->client = $this->getMockBuilder('Elastica\Client')
-            ->setMethods(array('addDocuments'))
+            ->setMethods(['addDocuments'])
             ->disableOriginalConstructor()
             ->getMock();
     }
@@ -57,19 +57,19 @@ class ElasticSearchHandlerTest extends TestCase
     public function testHandle()
     {
         // log message
-        $msg = array(
+        $msg = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('foo' => 7, 'bar', 'class' => new \stdClass),
+            'context' => ['foo' => 7, 'bar', 'class' => new \stdClass],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'log',
-        );
+        ];
 
         // format expected result
         $formatter = new ElasticaFormatter($this->options['index'], $this->options['type']);
-        $expected = array($formatter->format($msg));
+        $expected = [$formatter->format($msg)];
 
         // setup ES client mock
         $this->client->expects($this->any())
@@ -79,7 +79,7 @@ class ElasticSearchHandlerTest extends TestCase
         // perform tests
         $handler = new ElasticSearchHandler($this->client, $this->options);
         $handler->handle($msg);
-        $handler->handleBatch(array($msg));
+        $handler->handleBatch([$msg]);
     }
 
     /**
@@ -113,11 +113,11 @@ class ElasticSearchHandlerTest extends TestCase
      */
     public function testOptions()
     {
-        $expected = array(
+        $expected = [
             'index' => $this->options['index'],
             'type' => $this->options['type'],
             'ignore_error' => false,
-        );
+        ];
         $handler = new ElasticSearchHandler($this->client, $this->options);
         $this->assertEquals($expected, $handler->getOptions());
     }
@@ -128,9 +128,9 @@ class ElasticSearchHandlerTest extends TestCase
      */
     public function testConnectionErrors($ignore, $expectedError)
     {
-        $clientOpts = array('host' => '127.0.0.1', 'port' => 1);
+        $clientOpts = ['host' => '127.0.0.1', 'port' => 1];
         $client = new Client($clientOpts);
-        $handlerOpts = array('ignore_error' => $ignore);
+        $handlerOpts = ['ignore_error' => $ignore];
         $handler = new ElasticSearchHandler($client, $handlerOpts);
 
         if ($expectedError) {
@@ -146,10 +146,10 @@ class ElasticSearchHandlerTest extends TestCase
      */
     public function providerTestConnectionErrors()
     {
-        return array(
-            array(false, array('RuntimeException', 'Error sending messages to Elasticsearch')),
-            array(true, false),
-        );
+        return [
+            [false, ['RuntimeException', 'Error sending messages to Elasticsearch']],
+            [true, false],
+        ];
     }
 
     /**
@@ -162,28 +162,28 @@ class ElasticSearchHandlerTest extends TestCase
      */
     public function testHandleIntegration()
     {
-        $msg = array(
+        $msg = [
             'level' => Logger::ERROR,
             'level_name' => 'ERROR',
             'channel' => 'meh',
-            'context' => array('foo' => 7, 'bar', 'class' => new \stdClass),
+            'context' => ['foo' => 7, 'bar', 'class' => new \stdClass],
             'datetime' => new \DateTimeImmutable("@0"),
-            'extra' => array(),
+            'extra' => [],
             'message' => 'log',
-        );
+        ];
 
         $expected = $msg;
         $expected['datetime'] = $msg['datetime']->format(\DateTime::ISO8601);
-        $expected['context'] = array(
+        $expected['context'] = [
             'class' => '[object] (stdClass: {})',
             'foo' => 7,
             0 => 'bar',
-        );
+        ];
 
         $client = new Client();
         $handler = new ElasticSearchHandler($client, $this->options);
         try {
-            $handler->handleBatch(array($msg));
+            $handler->handleBatch([$msg]);
         } catch (\RuntimeException $e) {
             $this->markTestSkipped("Cannot connect to Elastic Search server on localhost");
         }
@@ -234,6 +234,6 @@ class ElasticSearchHandlerTest extends TestCase
             return $data['_source'];
         }
 
-        return array();
+        return [];
     }
 }
diff --git a/tests/Monolog/Handler/ErrorLogHandlerTest.php b/tests/Monolog/Handler/ErrorLogHandlerTest.php
index 9cd333c7..66616ad8 100644
--- a/tests/Monolog/Handler/ErrorLogHandlerTest.php
+++ b/tests/Monolog/Handler/ErrorLogHandlerTest.php
@@ -24,7 +24,7 @@ class ErrorLogHandlerTest extends TestCase
 {
     protected function setUp()
     {
-        $GLOBALS['error_log'] = array();
+        $GLOBALS['error_log'] = [];
     }
 
     /**
diff --git a/tests/Monolog/Handler/FilterHandlerTest.php b/tests/Monolog/Handler/FilterHandlerTest.php
index 3ac74990..c45e3c14 100644
--- a/tests/Monolog/Handler/FilterHandlerTest.php
+++ b/tests/Monolog/Handler/FilterHandlerTest.php
@@ -63,7 +63,7 @@ class FilterHandlerTest extends TestCase
         $this->assertFalse($test->hasEmergencyRecords());
 
         $test    = new TestHandler();
-        $handler = new FilterHandler($test, array(Logger::INFO, Logger::ERROR));
+        $handler = new FilterHandler($test, [Logger::INFO, Logger::ERROR]);
 
         $handler->handle($this->getRecord(Logger::DEBUG));
         $this->assertFalse($test->hasDebugRecords());
@@ -86,14 +86,14 @@ class FilterHandlerTest extends TestCase
         $test    = new TestHandler();
         $handler = new FilterHandler($test);
 
-        $levels = array(Logger::INFO, Logger::ERROR);
+        $levels = [Logger::INFO, Logger::ERROR];
         $handler->setAcceptedLevels($levels);
         $this->assertSame($levels, $handler->getAcceptedLevels());
 
-        $handler->setAcceptedLevels(array('info', 'error'));
+        $handler->setAcceptedLevels(['info', 'error']);
         $this->assertSame($levels, $handler->getAcceptedLevels());
 
-        $levels = array(Logger::CRITICAL, Logger::ALERT, Logger::EMERGENCY);
+        $levels = [Logger::CRITICAL, Logger::ALERT, Logger::EMERGENCY];
         $handler->setAcceptedLevels(Logger::CRITICAL, Logger::EMERGENCY);
         $this->assertSame($levels, $handler->getAcceptedLevels());
 
diff --git a/tests/Monolog/Handler/FingersCrossedHandlerTest.php b/tests/Monolog/Handler/FingersCrossedHandlerTest.php
index 5d35f72d..26fbec89 100644
--- a/tests/Monolog/Handler/FingersCrossedHandlerTest.php
+++ b/tests/Monolog/Handler/FingersCrossedHandlerTest.php
@@ -203,7 +203,7 @@ class FingersCrossedHandlerTest extends TestCase
     public function testChannelLevelActivationStrategy()
     {
         $test = new TestHandler();
-        $handler = new FingersCrossedHandler($test, new ChannelLevelActivationStrategy(Logger::ERROR, array('othertest' => Logger::DEBUG)));
+        $handler = new FingersCrossedHandler($test, new ChannelLevelActivationStrategy(Logger::ERROR, ['othertest' => Logger::DEBUG]));
         $handler->handle($this->getRecord(Logger::WARNING));
         $this->assertFalse($test->hasWarningRecords());
         $record = $this->getRecord(Logger::DEBUG);
@@ -220,7 +220,7 @@ class FingersCrossedHandlerTest extends TestCase
     public function testChannelLevelActivationStrategyWithPsrLevels()
     {
         $test = new TestHandler();
-        $handler = new FingersCrossedHandler($test, new ChannelLevelActivationStrategy('error', array('othertest' => 'debug')));
+        $handler = new FingersCrossedHandler($test, new ChannelLevelActivationStrategy('error', ['othertest' => 'debug']));
         $handler->handle($this->getRecord(Logger::WARNING));
         $this->assertFalse($test->hasWarningRecords());
         $record = $this->getRecord(Logger::DEBUG);
diff --git a/tests/Monolog/Handler/FirePHPHandlerTest.php b/tests/Monolog/Handler/FirePHPHandlerTest.php
index 09cdc438..bb30fdb4 100644
--- a/tests/Monolog/Handler/FirePHPHandlerTest.php
+++ b/tests/Monolog/Handler/FirePHPHandlerTest.php
@@ -32,13 +32,13 @@ class FirePHPHandlerTest extends TestCase
         $handler->handle($this->getRecord(Logger::DEBUG));
         $handler->handle($this->getRecord(Logger::WARNING));
 
-        $expected = array(
+        $expected = [
             'X-Wf-Protocol-1'    => 'http://meta.wildfirehq.org/Protocol/JsonStream/0.2',
             'X-Wf-1-Structure-1' => 'http://meta.firephp.org/Wildfire/Structure/FirePHP/FirebugConsole/0.1',
             'X-Wf-1-Plugin-1'    => 'http://meta.firephp.org/Wildfire/Plugin/FirePHP/Library-FirePHPCore/0.3',
             'X-Wf-1-1-1-1'       => 'test',
             'X-Wf-1-1-1-2'       => 'test',
-        );
+        ];
 
         $this->assertEquals($expected, $handler->getHeaders());
     }
@@ -55,18 +55,18 @@ class FirePHPHandlerTest extends TestCase
         $handler2->handle($this->getRecord(Logger::DEBUG));
         $handler2->handle($this->getRecord(Logger::WARNING));
 
-        $expected = array(
+        $expected = [
             'X-Wf-Protocol-1'    => 'http://meta.wildfirehq.org/Protocol/JsonStream/0.2',
             'X-Wf-1-Structure-1' => 'http://meta.firephp.org/Wildfire/Structure/FirePHP/FirebugConsole/0.1',
             'X-Wf-1-Plugin-1'    => 'http://meta.firephp.org/Wildfire/Plugin/FirePHP/Library-FirePHPCore/0.3',
             'X-Wf-1-1-1-1'       => 'test',
             'X-Wf-1-1-1-2'       => 'test',
-        );
+        ];
 
-        $expected2 = array(
+        $expected2 = [
             'X-Wf-1-1-1-3'       => 'test',
             'X-Wf-1-1-1-4'       => 'test',
-        );
+        ];
 
         $this->assertEquals($expected, $handler->getHeaders());
         $this->assertEquals($expected2, $handler2->getHeaders());
@@ -75,7 +75,7 @@ class FirePHPHandlerTest extends TestCase
 
 class TestFirePHPHandler extends FirePHPHandler
 {
-    protected $headers = array();
+    protected $headers = [];
 
     public static function reset()
     {
diff --git a/tests/Monolog/Handler/FleepHookHandlerTest.php b/tests/Monolog/Handler/FleepHookHandlerTest.php
index 9c40af94..26946b13 100644
--- a/tests/Monolog/Handler/FleepHookHandlerTest.php
+++ b/tests/Monolog/Handler/FleepHookHandlerTest.php
@@ -56,15 +56,15 @@ class FleepHookHandlerTest extends TestCase
      */
     public function testHandlerUsesLineFormatterWhichIgnoresEmptyArrays()
     {
-        $record = array(
+        $record = [
             'message' => 'msg',
-            'context' => array(),
+            'context' => [],
             'level' => Logger::DEBUG,
             'level_name' => Logger::getLevelName(Logger::DEBUG),
             'channel' => 'channel',
             'datetime' => new \DateTimeImmutable(),
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         $expectedFormatter = new LineFormatter(null, null, true, true);
         $expected = $expectedFormatter->format($record);
diff --git a/tests/Monolog/Handler/FlowdockHandlerTest.php b/tests/Monolog/Handler/FlowdockHandlerTest.php
index fd5ab245..4d8d0a4f 100644
--- a/tests/Monolog/Handler/FlowdockHandlerTest.php
+++ b/tests/Monolog/Handler/FlowdockHandlerTest.php
@@ -61,11 +61,11 @@ class FlowdockHandlerTest extends TestCase
 
     private function createHandler($token = 'myToken')
     {
-        $constructorArgs = array($token, Logger::DEBUG);
+        $constructorArgs = [$token, Logger::DEBUG];
         $this->res = fopen('php://memory', 'a');
         $this->handler = $this->getMock(
             '\Monolog\Handler\FlowdockHandler',
-            array('fsockopen', 'streamSetTimeout', 'closeSocket'),
+            ['fsockopen', 'streamSetTimeout', 'closeSocket'],
             $constructorArgs
         );
 
diff --git a/tests/Monolog/Handler/GelfHandlerTest.php b/tests/Monolog/Handler/GelfHandlerTest.php
index 9b9e7512..e1b4f7aa 100644
--- a/tests/Monolog/Handler/GelfHandlerTest.php
+++ b/tests/Monolog/Handler/GelfHandlerTest.php
@@ -43,7 +43,7 @@ class GelfHandlerTest extends TestCase
 
     protected function getMessagePublisher()
     {
-        return $this->getMock('Gelf\Publisher', array('publish'), array(), '', false);
+        return $this->getMock('Gelf\Publisher', ['publish'], [], '', false);
     }
 
     public function testDebug()
diff --git a/tests/Monolog/Handler/GroupHandlerTest.php b/tests/Monolog/Handler/GroupHandlerTest.php
index 3d2b4dfd..4d7c65cc 100644
--- a/tests/Monolog/Handler/GroupHandlerTest.php
+++ b/tests/Monolog/Handler/GroupHandlerTest.php
@@ -22,7 +22,7 @@ class GroupHandlerTest extends TestCase
      */
     public function testConstructorOnlyTakesHandler()
     {
-        new GroupHandler(array(new TestHandler(), "foo"));
+        new GroupHandler([new TestHandler(), "foo"]);
     }
 
     /**
@@ -31,7 +31,7 @@ class GroupHandlerTest extends TestCase
      */
     public function testHandle()
     {
-        $testHandlers = array(new TestHandler(), new TestHandler());
+        $testHandlers = [new TestHandler(), new TestHandler()];
         $handler = new GroupHandler($testHandlers);
         $handler->handle($this->getRecord(Logger::DEBUG));
         $handler->handle($this->getRecord(Logger::INFO));
@@ -47,9 +47,9 @@ class GroupHandlerTest extends TestCase
      */
     public function testHandleBatch()
     {
-        $testHandlers = array(new TestHandler(), new TestHandler());
+        $testHandlers = [new TestHandler(), new TestHandler()];
         $handler = new GroupHandler($testHandlers);
-        $handler->handleBatch(array($this->getRecord(Logger::DEBUG), $this->getRecord(Logger::INFO)));
+        $handler->handleBatch([$this->getRecord(Logger::DEBUG), $this->getRecord(Logger::INFO)]);
         foreach ($testHandlers as $test) {
             $this->assertTrue($test->hasDebugRecords());
             $this->assertTrue($test->hasInfoRecords());
@@ -62,7 +62,7 @@ class GroupHandlerTest extends TestCase
      */
     public function testIsHandling()
     {
-        $testHandlers = array(new TestHandler(Logger::ERROR), new TestHandler(Logger::WARNING));
+        $testHandlers = [new TestHandler(Logger::ERROR), new TestHandler(Logger::WARNING)];
         $handler = new GroupHandler($testHandlers);
         $this->assertTrue($handler->isHandling($this->getRecord(Logger::ERROR)));
         $this->assertTrue($handler->isHandling($this->getRecord(Logger::WARNING)));
@@ -75,7 +75,7 @@ class GroupHandlerTest extends TestCase
     public function testHandleUsesProcessors()
     {
         $test = new TestHandler();
-        $handler = new GroupHandler(array($test));
+        $handler = new GroupHandler([$test]);
         $handler->pushProcessor(function ($record) {
             $record['extra']['foo'] = true;
 
diff --git a/tests/Monolog/Handler/HandlerWrapperTest.php b/tests/Monolog/Handler/HandlerWrapperTest.php
index 3f1e70b5..b27c0093 100644
--- a/tests/Monolog/Handler/HandlerWrapperTest.php
+++ b/tests/Monolog/Handler/HandlerWrapperTest.php
@@ -37,10 +37,10 @@ class HandlerWrapperTest extends TestCase
      */
     public function trueFalseDataProvider()
     {
-        return array(
-            array(true),
-            array(false),
-        );
+        return [
+            [true],
+            [false],
+        ];
     }
 
     /**
diff --git a/tests/Monolog/Handler/HipChatHandlerTest.php b/tests/Monolog/Handler/HipChatHandlerTest.php
index fc773b44..d95e188b 100644
--- a/tests/Monolog/Handler/HipChatHandlerTest.php
+++ b/tests/Monolog/Handler/HipChatHandlerTest.php
@@ -139,16 +139,16 @@ class HipChatHandlerTest extends TestCase
 
     public function provideLevelColors()
     {
-        return array(
-            array(Logger::DEBUG,    'gray'),
-            array(Logger::INFO,     'green'),
-            array(Logger::WARNING,  'yellow'),
-            array(Logger::ERROR,    'red'),
-            array(Logger::CRITICAL, 'red'),
-            array(Logger::ALERT,    'red'),
-            array(Logger::EMERGENCY,'red'),
-            array(Logger::NOTICE,   'green'),
-        );
+        return [
+            [Logger::DEBUG,    'gray'],
+            [Logger::INFO,     'green'],
+            [Logger::WARNING,  'yellow'],
+            [Logger::ERROR,    'red'],
+            [Logger::CRITICAL, 'red'],
+            [Logger::ALERT,    'red'],
+            [Logger::EMERGENCY,'red'],
+            [Logger::NOTICE,   'green'],
+        ];
     }
 
     /**
@@ -168,45 +168,45 @@ class HipChatHandlerTest extends TestCase
 
     public function provideBatchRecords()
     {
-        return array(
-            array(
-                array(
-                    array('level' => Logger::WARNING, 'message' => 'Oh bugger!', 'level_name' => 'warning', 'datetime' => new \DateTimeImmutable()),
-                    array('level' => Logger::NOTICE, 'message' => 'Something noticeable happened.', 'level_name' => 'notice', 'datetime' => new \DateTimeImmutable()),
-                    array('level' => Logger::CRITICAL, 'message' => 'Everything is broken!', 'level_name' => 'critical', 'datetime' => new \DateTimeImmutable()),
-                ),
+        return [
+            [
+                [
+                    ['level' => Logger::WARNING, 'message' => 'Oh bugger!', 'level_name' => 'warning', 'datetime' => new \DateTimeImmutable()],
+                    ['level' => Logger::NOTICE, 'message' => 'Something noticeable happened.', 'level_name' => 'notice', 'datetime' => new \DateTimeImmutable()],
+                    ['level' => Logger::CRITICAL, 'message' => 'Everything is broken!', 'level_name' => 'critical', 'datetime' => new \DateTimeImmutable()],
+                ],
                 'red',
-            ),
-            array(
-                array(
-                    array('level' => Logger::WARNING, 'message' => 'Oh bugger!', 'level_name' => 'warning', 'datetime' => new \DateTimeImmutable()),
-                    array('level' => Logger::NOTICE, 'message' => 'Something noticeable happened.', 'level_name' => 'notice', 'datetime' => new \DateTimeImmutable()),
-                ),
+            ],
+            [
+                [
+                    ['level' => Logger::WARNING, 'message' => 'Oh bugger!', 'level_name' => 'warning', 'datetime' => new \DateTimeImmutable()],
+                    ['level' => Logger::NOTICE, 'message' => 'Something noticeable happened.', 'level_name' => 'notice', 'datetime' => new \DateTimeImmutable()],
+                ],
                 'yellow',
-            ),
-            array(
-                array(
-                    array('level' => Logger::DEBUG, 'message' => 'Just debugging.', 'level_name' => 'debug', 'datetime' => new \DateTimeImmutable()),
-                    array('level' => Logger::NOTICE, 'message' => 'Something noticeable happened.', 'level_name' => 'notice', 'datetime' => new \DateTimeImmutable()),
-                ),
+            ],
+            [
+                [
+                    ['level' => Logger::DEBUG, 'message' => 'Just debugging.', 'level_name' => 'debug', 'datetime' => new \DateTimeImmutable()],
+                    ['level' => Logger::NOTICE, 'message' => 'Something noticeable happened.', 'level_name' => 'notice', 'datetime' => new \DateTimeImmutable()],
+                ],
                 'green',
-            ),
-            array(
-                array(
-                    array('level' => Logger::DEBUG, 'message' => 'Just debugging.', 'level_name' => 'debug', 'datetime' => new \DateTimeImmutable()),
-                ),
+            ],
+            [
+                [
+                    ['level' => Logger::DEBUG, 'message' => 'Just debugging.', 'level_name' => 'debug', 'datetime' => new \DateTimeImmutable()],
+                ],
                 'gray',
-            ),
-        );
+            ],
+        ];
     }
 
     private function createHandler($token = 'myToken', $room = 'room1', $name = 'Monolog', $notify = false, $host = 'api.hipchat.com', $version = 'v1')
     {
-        $constructorArgs = array($token, $room, $name, $notify, Logger::DEBUG, true, true, 'text', $host, $version);
+        $constructorArgs = [$token, $room, $name, $notify, Logger::DEBUG, true, true, 'text', $host, $version];
         $this->res = fopen('php://memory', 'a');
         $this->handler = $this->getMock(
             '\Monolog\Handler\HipChatHandler',
-            array('fsockopen', 'streamSetTimeout', 'closeSocket'),
+            ['fsockopen', 'streamSetTimeout', 'closeSocket'],
             $constructorArgs
         );
 
diff --git a/tests/Monolog/Handler/LogEntriesHandlerTest.php b/tests/Monolog/Handler/LogEntriesHandlerTest.php
index 9db49578..a917e519 100644
--- a/tests/Monolog/Handler/LogEntriesHandlerTest.php
+++ b/tests/Monolog/Handler/LogEntriesHandlerTest.php
@@ -42,11 +42,11 @@ class LogEntriesHandlerTest extends TestCase
 
     public function testWriteBatchContent()
     {
-        $records = array(
+        $records = [
             $this->getRecord(),
             $this->getRecord(),
             $this->getRecord(),
-        );
+        ];
         $this->createHandler();
         $this->handler->handleBatch($records);
 
@@ -59,11 +59,11 @@ class LogEntriesHandlerTest extends TestCase
     private function createHandler()
     {
         $useSSL = extension_loaded('openssl');
-        $args = array('testToken', $useSSL, Logger::DEBUG, true);
+        $args = ['testToken', $useSSL, Logger::DEBUG, true];
         $this->res = fopen('php://memory', 'a');
         $this->handler = $this->getMock(
             '\Monolog\Handler\LogEntriesHandler',
-            array('fsockopen', 'streamSetTimeout', 'closeSocket'),
+            ['fsockopen', 'streamSetTimeout', 'closeSocket'],
             $args
         );
 
diff --git a/tests/Monolog/Handler/MailHandlerTest.php b/tests/Monolog/Handler/MailHandlerTest.php
index 03ee1774..e6169325 100644
--- a/tests/Monolog/Handler/MailHandlerTest.php
+++ b/tests/Monolog/Handler/MailHandlerTest.php
@@ -41,11 +41,11 @@ class MailHandlerTest extends TestCase
      */
     public function testHandleBatchNotSendsMailIfMessagesAreBelowLevel()
     {
-        $records = array(
+        $records = [
             $this->getRecord(Logger::DEBUG, 'debug message 1'),
             $this->getRecord(Logger::DEBUG, 'debug message 2'),
             $this->getRecord(Logger::INFO, 'information'),
-        );
+        ];
 
         $handler = $this->getMockForAbstractClass('Monolog\\Handler\\MailHandler');
         $handler->expects($this->never())
@@ -63,7 +63,7 @@ class MailHandlerTest extends TestCase
         $handler = $this->getMockForAbstractClass('Monolog\\Handler\\MailHandler');
 
         $record = $this->getRecord();
-        $records = array($record);
+        $records = [$record];
         $records[0]['formatted'] = '['.$record['datetime'].'] test.WARNING: test [] []'."\n";
 
         $handler->expects($this->once())
diff --git a/tests/Monolog/Handler/NativeMailerHandlerTest.php b/tests/Monolog/Handler/NativeMailerHandlerTest.php
index 248c2754..6d0fc487 100644
--- a/tests/Monolog/Handler/NativeMailerHandlerTest.php
+++ b/tests/Monolog/Handler/NativeMailerHandlerTest.php
@@ -24,7 +24,7 @@ class NativeMailerHandlerTest extends TestCase
 {
     protected function setUp()
     {
-        $GLOBALS['mail'] = array();
+        $GLOBALS['mail'] = [];
     }
 
     /**
@@ -50,7 +50,7 @@ class NativeMailerHandlerTest extends TestCase
     public function testSetterArrayHeaderInjection()
     {
         $mailer = new NativeMailerHandler('spammer@example.org', 'dear victim', 'receiver@example.org');
-        $mailer->addHeader(array("Content-Type: text/html\r\nFrom: faked@attacker.org"));
+        $mailer->addHeader(["Content-Type: text/html\r\nFrom: faked@attacker.org"]);
     }
 
     /**
@@ -78,7 +78,7 @@ class NativeMailerHandlerTest extends TestCase
         $from = 'receiver@example.org';
 
         $mailer = new NativeMailerHandler($to, $subject, $from);
-        $mailer->handleBatch(array());
+        $mailer->handleBatch([]);
 
         // batch is empty, nothing sent
         $this->assertEmpty($GLOBALS['mail']);
diff --git a/tests/Monolog/Handler/NewRelicHandlerTest.php b/tests/Monolog/Handler/NewRelicHandlerTest.php
index 9fc4f56d..7471003b 100644
--- a/tests/Monolog/Handler/NewRelicHandlerTest.php
+++ b/tests/Monolog/Handler/NewRelicHandlerTest.php
@@ -24,7 +24,7 @@ class NewRelicHandlerTest extends TestCase
     public function setUp()
     {
         self::$appname = null;
-        self::$customParameters = array();
+        self::$customParameters = [];
         self::$transactionName = null;
     }
 
@@ -46,8 +46,8 @@ class NewRelicHandlerTest extends TestCase
     public function testThehandlerCanAddContextParamsToTheNewRelicTrace()
     {
         $handler = new StubNewRelicHandler();
-        $handler->handle($this->getRecord(Logger::ERROR, 'log message', array('a' => 'b')));
-        $this->assertEquals(array('context_a' => 'b'), self::$customParameters);
+        $handler->handle($this->getRecord(Logger::ERROR, 'log message', ['a' => 'b']));
+        $this->assertEquals(['context_a' => 'b'], self::$customParameters);
     }
 
     public function testThehandlerCanAddExplodedContextParamsToTheNewRelicTrace()
@@ -56,10 +56,10 @@ class NewRelicHandlerTest extends TestCase
         $handler->handle($this->getRecord(
             Logger::ERROR,
             'log message',
-            array('a' => array('key1' => 'value1', 'key2' => 'value2'))
+            ['a' => ['key1' => 'value1', 'key2' => 'value2']]
         ));
         $this->assertEquals(
-            array('context_a_key1' => 'value1', 'context_a_key2' => 'value2'),
+            ['context_a_key1' => 'value1', 'context_a_key2' => 'value2'],
             self::$customParameters
         );
     }
@@ -67,40 +67,40 @@ class NewRelicHandlerTest extends TestCase
     public function testThehandlerCanAddExtraParamsToTheNewRelicTrace()
     {
         $record = $this->getRecord(Logger::ERROR, 'log message');
-        $record['extra'] = array('c' => 'd');
+        $record['extra'] = ['c' => 'd'];
 
         $handler = new StubNewRelicHandler();
         $handler->handle($record);
 
-        $this->assertEquals(array('extra_c' => 'd'), self::$customParameters);
+        $this->assertEquals(['extra_c' => 'd'], self::$customParameters);
     }
 
     public function testThehandlerCanAddExplodedExtraParamsToTheNewRelicTrace()
     {
         $record = $this->getRecord(Logger::ERROR, 'log message');
-        $record['extra'] = array('c' => array('key1' => 'value1', 'key2' => 'value2'));
+        $record['extra'] = ['c' => ['key1' => 'value1', 'key2' => 'value2']];
 
         $handler = new StubNewRelicHandler(Logger::ERROR, true, self::$appname, true);
         $handler->handle($record);
 
         $this->assertEquals(
-            array('extra_c_key1' => 'value1', 'extra_c_key2' => 'value2'),
+            ['extra_c_key1' => 'value1', 'extra_c_key2' => 'value2'],
             self::$customParameters
         );
     }
 
     public function testThehandlerCanAddExtraContextAndParamsToTheNewRelicTrace()
     {
-        $record = $this->getRecord(Logger::ERROR, 'log message', array('a' => 'b'));
-        $record['extra'] = array('c' => 'd');
+        $record = $this->getRecord(Logger::ERROR, 'log message', ['a' => 'b']);
+        $record['extra'] = ['c' => 'd'];
 
         $handler = new StubNewRelicHandler();
         $handler->handle($record);
 
-        $expected = array(
+        $expected = [
             'context_a' => 'b',
             'extra_c' => 'd',
-        );
+        ];
 
         $this->assertEquals($expected, self::$customParameters);
     }
@@ -131,7 +131,7 @@ class NewRelicHandlerTest extends TestCase
     public function testTheAppNameCanBeOverriddenFromEachLog()
     {
         $handler = new StubNewRelicHandler(Logger::DEBUG, false, 'myAppName');
-        $handler->handle($this->getRecord(Logger::ERROR, 'log message', array('appname' => 'logAppName')));
+        $handler->handle($this->getRecord(Logger::ERROR, 'log message', ['appname' => 'logAppName']));
 
         $this->assertEquals('logAppName', self::$appname);
     }
@@ -155,7 +155,7 @@ class NewRelicHandlerTest extends TestCase
     public function testTheTransactionNameCanBeOverriddenFromEachLog()
     {
         $handler = new StubNewRelicHandler(Logger::DEBUG, false, null, false, 'myTransaction');
-        $handler->handle($this->getRecord(Logger::ERROR, 'log message', array('transaction_name' => 'logTransactName')));
+        $handler->handle($this->getRecord(Logger::ERROR, 'log message', ['transaction_name' => 'logTransactName']));
 
         $this->assertEquals('logTransactName', self::$transactionName);
     }
diff --git a/tests/Monolog/Handler/PHPConsoleHandlerTest.php b/tests/Monolog/Handler/PHPConsoleHandlerTest.php
index caa4f044..ffdb0c6a 100644
--- a/tests/Monolog/Handler/PHPConsoleHandlerTest.php
+++ b/tests/Monolog/Handler/PHPConsoleHandlerTest.php
@@ -52,8 +52,8 @@ class PHPConsoleHandlerTest extends TestCase
     {
         return $this->getMockBuilder('PhpConsole\Dispatcher\Debug')
             ->disableOriginalConstructor()
-            ->setMethods(array('dispatchDebug'))
-            ->setConstructorArgs(array($connector, $connector->getDumper()))
+            ->setMethods(['dispatchDebug'])
+            ->setConstructorArgs([$connector, $connector->getDumper()])
             ->getMock();
     }
 
@@ -61,8 +61,8 @@ class PHPConsoleHandlerTest extends TestCase
     {
         return $this->getMockBuilder('PhpConsole\Dispatcher\Errors')
             ->disableOriginalConstructor()
-            ->setMethods(array('dispatchError', 'dispatchException'))
-            ->setConstructorArgs(array($connector, $connector->getDumper()))
+            ->setMethods(['dispatchError', 'dispatchException'])
+            ->setConstructorArgs([$connector, $connector->getDumper()])
             ->getMock();
     }
 
@@ -70,7 +70,7 @@ class PHPConsoleHandlerTest extends TestCase
     {
         $connector = $this->getMockBuilder('PhpConsole\Connector')
             ->disableOriginalConstructor()
-            ->setMethods(array(
+            ->setMethods([
                 'sendMessage',
                 'onShutDown',
                 'isActiveClient',
@@ -81,7 +81,7 @@ class PHPConsoleHandlerTest extends TestCase
                 'setAllowedIpMasks',
                 'setHeadersLimit',
                 'startEvalRequestsListener',
-            ))
+            ])
             ->getMock();
 
         $connector->expects($this->any())
@@ -93,17 +93,17 @@ class PHPConsoleHandlerTest extends TestCase
 
     protected function getHandlerDefaultOption($name)
     {
-        $handler = new PHPConsoleHandler(array(), $this->connector);
+        $handler = new PHPConsoleHandler([], $this->connector);
         $options = $handler->getOptions();
 
         return $options[$name];
     }
 
-    protected function initLogger($handlerOptions = array(), $level = Logger::DEBUG)
+    protected function initLogger($handlerOptions = [], $level = Logger::DEBUG)
     {
-        return new Logger('test', array(
+        return new Logger('test', [
             new PHPConsoleHandler($handlerOptions, $this->connector, $level),
-        ));
+        ]);
     }
 
     public function testInitWithDefaultConnector()
@@ -114,7 +114,7 @@ class PHPConsoleHandlerTest extends TestCase
 
     public function testInitWithCustomConnector()
     {
-        $handler = new PHPConsoleHandler(array(), $this->connector);
+        $handler = new PHPConsoleHandler([], $this->connector);
         $this->assertEquals(spl_object_hash($this->connector), spl_object_hash($handler->getConnector()));
     }
 
@@ -128,7 +128,7 @@ class PHPConsoleHandlerTest extends TestCase
     {
         $message = 'test';
         $tag = 'tag';
-        $context = array($tag, 'custom' => mt_rand());
+        $context = [$tag, 'custom' => mt_rand()];
         $expectedMessage = $message . ' ' . json_encode(array_slice($context, 1));
         $this->debugDispatcher->expects($this->once())->method('dispatchDebug')->with(
             $this->equalTo($expectedMessage),
@@ -140,7 +140,7 @@ class PHPConsoleHandlerTest extends TestCase
     public function testDebugTags($tagsContextKeys = null)
     {
         $expectedTags = mt_rand();
-        $logger = $this->initLogger($tagsContextKeys ? array('debugTagsKeysInContext' => $tagsContextKeys) : array());
+        $logger = $this->initLogger($tagsContextKeys ? ['debugTagsKeysInContext' => $tagsContextKeys] : []);
         if (!$tagsContextKeys) {
             $tagsContextKeys = $this->getHandlerDefaultOption('debugTagsKeysInContext');
         }
@@ -151,7 +151,7 @@ class PHPConsoleHandlerTest extends TestCase
                 $this->equalTo($expectedTags)
             );
             $this->connector->setDebugDispatcher($debugDispatcher);
-            $logger->debug('test', array($key => $expectedTags));
+            $logger->debug('test', [$key => $expectedTags]);
         }
     }
 
@@ -168,8 +168,8 @@ class PHPConsoleHandlerTest extends TestCase
             $this->equalTo($line),
             $classesPartialsTraceIgnore ?: $this->equalTo($this->getHandlerDefaultOption('classesPartialsTraceIgnore'))
         );
-        $errorHandler = ErrorHandler::register($this->initLogger($classesPartialsTraceIgnore ? array('classesPartialsTraceIgnore' => $classesPartialsTraceIgnore) : array()), false);
-        $errorHandler->registerErrorHandler(array(), false, E_USER_WARNING);
+        $errorHandler = ErrorHandler::register($this->initLogger($classesPartialsTraceIgnore ? ['classesPartialsTraceIgnore' => $classesPartialsTraceIgnore] : []), false);
+        $errorHandler->registerErrorHandler([], false, E_USER_WARNING);
         $errorHandler->handleError($code, $message, $file, $line);
     }
 
@@ -183,7 +183,7 @@ class PHPConsoleHandlerTest extends TestCase
         $handler->log(
             \Psr\Log\LogLevel::ERROR,
             sprintf('Uncaught Exception %s: "%s" at %s line %s', get_class($e), $e->getMessage(), $e->getFile(), $e->getLine()),
-            array('exception' => $e)
+            ['exception' => $e]
         );
     }
 
@@ -192,45 +192,45 @@ class PHPConsoleHandlerTest extends TestCase
      */
     public function testWrongOptionsThrowsException()
     {
-        new PHPConsoleHandler(array('xxx' => 1));
+        new PHPConsoleHandler(['xxx' => 1]);
     }
 
     public function testOptionEnabled()
     {
         $this->debugDispatcher->expects($this->never())->method('dispatchDebug');
-        $this->initLogger(array('enabled' => false))->debug('test');
+        $this->initLogger(['enabled' => false])->debug('test');
     }
 
     public function testOptionClassesPartialsTraceIgnore()
     {
-        $this->testError(array('Class', 'Namespace\\'));
+        $this->testError(['Class', 'Namespace\\']);
     }
 
     public function testOptionDebugTagsKeysInContext()
     {
-        $this->testDebugTags(array('key1', 'key2'));
+        $this->testDebugTags(['key1', 'key2']);
     }
 
     public function testOptionUseOwnErrorsAndExceptionsHandler()
     {
-        $this->initLogger(array('useOwnErrorsHandler' => true, 'useOwnExceptionsHandler' => true));
-        $this->assertEquals(array(VendorPhpConsoleHandler::getInstance(), 'handleError'), set_error_handler(function () {
+        $this->initLogger(['useOwnErrorsHandler' => true, 'useOwnExceptionsHandler' => true]);
+        $this->assertEquals([VendorPhpConsoleHandler::getInstance(), 'handleError'], set_error_handler(function () {
         }));
-        $this->assertEquals(array(VendorPhpConsoleHandler::getInstance(), 'handleException'), set_exception_handler(function () {
+        $this->assertEquals([VendorPhpConsoleHandler::getInstance(), 'handleException'], set_exception_handler(function () {
         }));
     }
 
     public static function provideConnectorMethodsOptionsSets()
     {
-        return array(
-            array('sourcesBasePath', 'setSourcesBasePath', __DIR__),
-            array('serverEncoding', 'setServerEncoding', 'cp1251'),
-            array('password', 'setPassword', '******'),
-            array('enableSslOnlyMode', 'enableSslOnlyMode', true, false),
-            array('ipMasks', 'setAllowedIpMasks', array('127.0.0.*')),
-            array('headersLimit', 'setHeadersLimit', 2500),
-            array('enableEvalListener', 'startEvalRequestsListener', true, false),
-        );
+        return [
+            ['sourcesBasePath', 'setSourcesBasePath', __DIR__],
+            ['serverEncoding', 'setServerEncoding', 'cp1251'],
+            ['password', 'setPassword', '******'],
+            ['enableSslOnlyMode', 'enableSslOnlyMode', true, false],
+            ['ipMasks', 'setAllowedIpMasks', ['127.0.0.*']],
+            ['headersLimit', 'setHeadersLimit', 2500],
+            ['enableEvalListener', 'startEvalRequestsListener', true, false],
+        ];
     }
 
     /**
@@ -242,24 +242,24 @@ class PHPConsoleHandlerTest extends TestCase
         if ($isArgument) {
             $expectCall->with($value);
         }
-        new PHPConsoleHandler(array($option => $value), $this->connector);
+        new PHPConsoleHandler([$option => $value], $this->connector);
     }
 
     public function testOptionDetectDumpTraceAndSource()
     {
-        new PHPConsoleHandler(array('detectDumpTraceAndSource' => true), $this->connector);
+        new PHPConsoleHandler(['detectDumpTraceAndSource' => true], $this->connector);
         $this->assertTrue($this->connector->getDebugDispatcher()->detectTraceAndSource);
     }
 
     public static function provideDumperOptionsValues()
     {
-        return array(
-            array('dumperLevelLimit', 'levelLimit', 1001),
-            array('dumperItemsCountLimit', 'itemsCountLimit', 1002),
-            array('dumperItemSizeLimit', 'itemSizeLimit', 1003),
-            array('dumperDumpSizeLimit', 'dumpSizeLimit', 1004),
-            array('dumperDetectCallbacks', 'detectCallbacks', true),
-        );
+        return [
+            ['dumperLevelLimit', 'levelLimit', 1001],
+            ['dumperItemsCountLimit', 'itemsCountLimit', 1002],
+            ['dumperItemSizeLimit', 'itemSizeLimit', 1003],
+            ['dumperDumpSizeLimit', 'dumpSizeLimit', 1004],
+            ['dumperDetectCallbacks', 'detectCallbacks', true],
+        ];
     }
 
     /**
@@ -267,7 +267,7 @@ class PHPConsoleHandlerTest extends TestCase
      */
     public function testDumperOptions($option, $dumperProperty, $value)
     {
-        new PHPConsoleHandler(array($option => $value), $this->connector);
+        new PHPConsoleHandler([$option => $value], $this->connector);
         $this->assertEquals($value, $this->connector->getDumper()->$dumperProperty);
     }
 }
diff --git a/tests/Monolog/Handler/ProcessHandlerTest.php b/tests/Monolog/Handler/ProcessHandlerTest.php
index d2d62f1a..9b739e1f 100644
--- a/tests/Monolog/Handler/ProcessHandlerTest.php
+++ b/tests/Monolog/Handler/ProcessHandlerTest.php
@@ -34,15 +34,15 @@ class ProcessHandlerTest extends TestCase
      */
     public function testWriteOpensProcessAndWritesToStdInOfProcess()
     {
-        $fixtures = array(
+        $fixtures = [
             'chuck norris',
-            'foobar1337'
-        );
+            'foobar1337',
+        ];
 
         $mockBuilder = $this->getMockBuilder('Monolog\Handler\ProcessHandler');
-        $mockBuilder->setMethods(array('writeProcessInput'));
+        $mockBuilder->setMethods(['writeProcessInput']);
         // using echo as command, as it is most probably available
-        $mockBuilder->setConstructorArgs(array(self::DUMMY_COMMAND));
+        $mockBuilder->setConstructorArgs([self::DUMMY_COMMAND]);
 
         $handler = $mockBuilder->getMock();
 
@@ -126,8 +126,8 @@ class ProcessHandlerTest extends TestCase
     public function testStartupWithFailingToSelectErrorStreamThrowsUnexpectedValueException()
     {
         $mockBuilder = $this->getMockBuilder('Monolog\Handler\ProcessHandler');
-        $mockBuilder->setMethods(array('selectErrorStream'));
-        $mockBuilder->setConstructorArgs(array(self::DUMMY_COMMAND));
+        $mockBuilder->setMethods(['selectErrorStream']);
+        $mockBuilder->setConstructorArgs([self::DUMMY_COMMAND]);
 
         $handler = $mockBuilder->getMock();
 
@@ -157,9 +157,9 @@ class ProcessHandlerTest extends TestCase
     public function testWritingWithErrorsOnStdOutOfProcessThrowsInvalidArgumentException()
     {
         $mockBuilder = $this->getMockBuilder('Monolog\Handler\ProcessHandler');
-        $mockBuilder->setMethods(array('readProcessErrors'));
+        $mockBuilder->setMethods(['readProcessErrors']);
         // using echo as command, as it is most probably available
-        $mockBuilder->setConstructorArgs(array(self::DUMMY_COMMAND));
+        $mockBuilder->setConstructorArgs([self::DUMMY_COMMAND]);
 
         $handler = $mockBuilder->getMock();
 
diff --git a/tests/Monolog/Handler/PsrHandlerTest.php b/tests/Monolog/Handler/PsrHandlerTest.php
index 02622249..7a04bb3f 100644
--- a/tests/Monolog/Handler/PsrHandlerTest.php
+++ b/tests/Monolog/Handler/PsrHandlerTest.php
@@ -21,11 +21,11 @@ class PsrHandlerTest extends TestCase
 {
     public function logLevelProvider()
     {
-        $levels = array();
+        $levels = [];
         $monologLogger = new Logger('');
 
         foreach ($monologLogger->getLevels() as $levelName => $level) {
-            $levels[] = array($levelName, $level);
+            $levels[] = [$levelName, $level];
         }
 
         return $levels;
@@ -37,7 +37,7 @@ class PsrHandlerTest extends TestCase
     public function testHandlesAllLevels($levelName, $level)
     {
         $message = 'Hello, world! ' . $level;
-        $context = array('foo' => 'bar', 'level' => $level);
+        $context = ['foo' => 'bar', 'level' => $level];
 
         $psrLogger = $this->getMock('Psr\Log\NullLogger');
         $psrLogger->expects($this->once())
@@ -45,6 +45,6 @@ class PsrHandlerTest extends TestCase
             ->with(strtolower($levelName), $message, $context);
 
         $handler = new PsrHandler($psrLogger);
-        $handler->handle(array('level' => $level, 'level_name' => $levelName, 'message' => $message, 'context' => $context));
+        $handler->handle(['level' => $level, 'level_name' => $levelName, 'message' => $message, 'context' => $context]);
     }
 }
diff --git a/tests/Monolog/Handler/PushoverHandlerTest.php b/tests/Monolog/Handler/PushoverHandlerTest.php
index 05491a21..b4ca524c 100644
--- a/tests/Monolog/Handler/PushoverHandlerTest.php
+++ b/tests/Monolog/Handler/PushoverHandlerTest.php
@@ -103,7 +103,7 @@ class PushoverHandlerTest extends TestCase
 
     public function testWriteToMultipleUsers()
     {
-        $this->createHandler('myToken', array('userA', 'userB'));
+        $this->createHandler('myToken', ['userA', 'userB']);
         $this->handler->handle($this->getRecord(Logger::EMERGENCY, 'test1'));
         fseek($this->res, 0);
         $content = fread($this->res, 1024);
@@ -114,11 +114,11 @@ class PushoverHandlerTest extends TestCase
 
     private function createHandler($token = 'myToken', $user = 'myUser', $title = 'Monolog')
     {
-        $constructorArgs = array($token, $user, $title);
+        $constructorArgs = [$token, $user, $title];
         $this->res = fopen('php://memory', 'a');
         $this->handler = $this->getMock(
             '\Monolog\Handler\PushoverHandler',
-            array('fsockopen', 'streamSetTimeout', 'closeSocket'),
+            ['fsockopen', 'streamSetTimeout', 'closeSocket'],
             $constructorArgs
         );
 
diff --git a/tests/Monolog/Handler/RavenHandlerTest.php b/tests/Monolog/Handler/RavenHandlerTest.php
index 6331c384..ca3e8ac7 100644
--- a/tests/Monolog/Handler/RavenHandlerTest.php
+++ b/tests/Monolog/Handler/RavenHandlerTest.php
@@ -78,8 +78,8 @@ class RavenHandlerTest extends TestCase
         $ravenClient = $this->getRavenClient();
         $handler = $this->getHandler($ravenClient);
 
-        $tags = array(1, 2, 'foo');
-        $record = $this->getRecord(Logger::INFO, 'test', array('tags' => $tags));
+        $tags = [1, 2, 'foo'];
+        $record = $this->getRecord(Logger::INFO, 'test', ['tags' => $tags]);
         $handler->handle($record);
 
         $this->assertEquals($tags, $ravenClient->lastData['tags']);
@@ -92,7 +92,7 @@ class RavenHandlerTest extends TestCase
 
         $checksum = '098f6bcd4621d373cade4e832627b4f6';
         $release = '05a671c66aefea124cc08b76ea6d30bb';
-        $record = $this->getRecord(Logger::INFO, 'test', array('checksum' => $checksum, 'release' => $release));
+        $record = $this->getRecord(Logger::INFO, 'test', ['checksum' => $checksum, 'release' => $release]);
         $handler->handle($record);
 
         $this->assertEquals($checksum, $ravenClient->lastData['checksum']);
@@ -104,8 +104,8 @@ class RavenHandlerTest extends TestCase
         $ravenClient = $this->getRavenClient();
         $handler = $this->getHandler($ravenClient);
 
-        $fingerprint = array('{{ default }}', 'other value');
-        $record = $this->getRecord(Logger::INFO, 'test', array('fingerprint' => $fingerprint));
+        $fingerprint = ['{{ default }}', 'other value'];
+        $record = $this->getRecord(Logger::INFO, 'test', ['fingerprint' => $fingerprint]);
         $handler->handle($record);
 
         $this->assertEquals($fingerprint, $ravenClient->lastData['fingerprint']);
@@ -119,14 +119,14 @@ class RavenHandlerTest extends TestCase
         $recordWithNoContext = $this->getRecord(Logger::INFO, 'test with default user context');
         // set user context 'externally'
 
-        $user = array(
+        $user = [
             'id' => '123',
             'email' => 'test@test.com',
-        );
+        ];
 
-        $recordWithContext = $this->getRecord(Logger::INFO, 'test', array('user' => $user));
+        $recordWithContext = $this->getRecord(Logger::INFO, 'test', ['user' => $user]);
 
-        $ravenClient->user_context(array('id' => 'test_user_id'));
+        $ravenClient->user_context(['id' => 'test_user_id']);
         // handle context
         $handler->handle($recordWithContext);
         $this->assertEquals($user, $ravenClient->lastData['user']);
@@ -154,7 +154,7 @@ class RavenHandlerTest extends TestCase
         try {
             $this->methodThatThrowsAnException();
         } catch (\Exception $e) {
-            $record = $this->getRecord(Logger::ERROR, $e->getMessage(), array('exception' => $e));
+            $record = $this->getRecord(Logger::ERROR, $e->getMessage(), ['exception' => $e]);
             $handler->handle($record);
         }
 
@@ -183,13 +183,13 @@ class RavenHandlerTest extends TestCase
 
     public function testHandleBatchDoNothingIfRecordsAreBelowLevel()
     {
-        $records = array(
+        $records = [
             $this->getRecord(Logger::DEBUG, 'debug message 1'),
             $this->getRecord(Logger::DEBUG, 'debug message 2'),
             $this->getRecord(Logger::INFO, 'information'),
-        );
+        ];
 
-        $handler = $this->getMock('Monolog\Handler\RavenHandler', null, array($this->getRavenClient()));
+        $handler = $this->getMock('Monolog\Handler\RavenHandler', null, [$this->getRavenClient()]);
         $handler->expects($this->never())->method('handle');
         $handler->setLevel(Logger::ERROR);
         $handler->handleBatch($records);
@@ -215,7 +215,7 @@ class RavenHandlerTest extends TestCase
         $this->assertEquals($release, $ravenClient->lastData['release']);
 
         $localRelease = 'v41.41.41';
-        $record = $this->getRecord(Logger::INFO, 'test', array('release' => $localRelease));
+        $record = $this->getRecord(Logger::INFO, 'test', ['release' => $localRelease]);
         $handler->handle($record);
         $this->assertEquals($localRelease, $ravenClient->lastData['release']);
     }
diff --git a/tests/Monolog/Handler/RedisHandlerTest.php b/tests/Monolog/Handler/RedisHandlerTest.php
index d4ca2fd5..57bfb34c 100644
--- a/tests/Monolog/Handler/RedisHandlerTest.php
+++ b/tests/Monolog/Handler/RedisHandlerTest.php
@@ -39,14 +39,14 @@ class RedisHandlerTest extends TestCase
 
     public function testPredisHandle()
     {
-        $redis = $this->getMock('Predis\Client', array('rpush'));
+        $redis = $this->getMock('Predis\Client', ['rpush']);
 
         // Predis\Client uses rpush
         $redis->expects($this->once())
             ->method('rpush')
             ->with('key', 'test');
 
-        $record = $this->getRecord(Logger::WARNING, 'test', array('data' => new \stdClass, 'foo' => 34));
+        $record = $this->getRecord(Logger::WARNING, 'test', ['data' => new \stdClass, 'foo' => 34]);
 
         $handler = new RedisHandler($redis, 'key');
         $handler->setFormatter(new LineFormatter("%message%"));
@@ -55,14 +55,14 @@ class RedisHandlerTest extends TestCase
 
     public function testRedisHandle()
     {
-        $redis = $this->getMock('Redis', array('rpush'));
+        $redis = $this->getMock('Redis', ['rpush']);
 
         // Redis uses rPush
         $redis->expects($this->once())
             ->method('rPush')
             ->with('key', 'test');
 
-        $record = $this->getRecord(Logger::WARNING, 'test', array('data' => new \stdClass, 'foo' => 34));
+        $record = $this->getRecord(Logger::WARNING, 'test', ['data' => new \stdClass, 'foo' => 34]);
 
         $handler = new RedisHandler($redis, 'key');
         $handler->setFormatter(new LineFormatter("%message%"));
@@ -71,7 +71,7 @@ class RedisHandlerTest extends TestCase
 
     public function testRedisHandleCapped()
     {
-        $redis = $this->getMock('Redis', array('multi', 'rpush', 'ltrim', 'exec'));
+        $redis = $this->getMock('Redis', ['multi', 'rpush', 'ltrim', 'exec']);
 
         // Redis uses multi
         $redis->expects($this->once())
@@ -90,7 +90,7 @@ class RedisHandlerTest extends TestCase
             ->method('exec')
             ->will($this->returnSelf());
 
-        $record = $this->getRecord(Logger::WARNING, 'test', array('data' => new \stdClass, 'foo' => 34));
+        $record = $this->getRecord(Logger::WARNING, 'test', ['data' => new \stdClass, 'foo' => 34]);
 
         $handler = new RedisHandler($redis, 'key', Logger::DEBUG, true, 10);
         $handler->setFormatter(new LineFormatter("%message%"));
@@ -99,9 +99,9 @@ class RedisHandlerTest extends TestCase
 
     public function testPredisHandleCapped()
     {
-        $redis = $this->getMock('Predis\Client', array('transaction'));
+        $redis = $this->getMock('Predis\Client', ['transaction']);
 
-        $redisTransaction = $this->getMock('Predis\Client', array('rpush', 'ltrim'));
+        $redisTransaction = $this->getMock('Predis\Client', ['rpush', 'ltrim']);
 
         $redisTransaction->expects($this->once())
             ->method('rpush')
@@ -118,7 +118,7 @@ class RedisHandlerTest extends TestCase
                 $cb($redisTransaction);
             }));
 
-        $record = $this->getRecord(Logger::WARNING, 'test', array('data' => new \stdClass, 'foo' => 34));
+        $record = $this->getRecord(Logger::WARNING, 'test', ['data' => new \stdClass, 'foo' => 34]);
 
         $handler = new RedisHandler($redis, 'key', Logger::DEBUG, true, 10);
         $handler->setFormatter(new LineFormatter("%message%"));
diff --git a/tests/Monolog/Handler/RotatingFileHandlerTest.php b/tests/Monolog/Handler/RotatingFileHandlerTest.php
index e1ef901f..3f91f179 100644
--- a/tests/Monolog/Handler/RotatingFileHandlerTest.php
+++ b/tests/Monolog/Handler/RotatingFileHandlerTest.php
@@ -13,7 +13,6 @@ namespace Monolog\Handler;
 
 use InvalidArgumentException;
 use Monolog\Test\TestCase;
-use PHPUnit_Framework_Error_Deprecated;
 
 /**
  * @covers Monolog\Handler\RotatingFileHandler
@@ -38,11 +37,11 @@ class RotatingFileHandlerTest extends TestCase
         $this->lastError = null;
         $self = $this;
         // workaround with &$self used for PHP 5.3
-        set_error_handler(function($code, $message) use (&$self) {
-            $self->lastError = array(
+        set_error_handler(function ($code, $message) use (&$self) {
+            $self->lastError = [
                 'code' => $code,
                 'message' => $message,
-            );
+            ];
         });
     }
 
@@ -108,32 +107,32 @@ class RotatingFileHandlerTest extends TestCase
     public function rotationTests()
     {
         $now = time();
-        $dayCallback = function($ago) use ($now) {
+        $dayCallback = function ($ago) use ($now) {
             return $now + 86400 * $ago;
         };
-        $monthCallback = function($ago) {
+        $monthCallback = function ($ago) {
             return gmmktime(0, 0, 0, date('n') + $ago, date('d'), date('Y'));
         };
-        $yearCallback = function($ago) {
+        $yearCallback = function ($ago) {
             return gmmktime(0, 0, 0, date('n'), date('d'), date('Y') + $ago);
         };
 
-        return array(
+        return [
             'Rotation is triggered when the file of the current day is not present'
-                => array(true, RotatingFileHandler::FILE_PER_DAY, $dayCallback),
+                => [true, RotatingFileHandler::FILE_PER_DAY, $dayCallback],
             'Rotation is not triggered when the file of the current day is already present'
-                => array(false, RotatingFileHandler::FILE_PER_DAY, $dayCallback),
+                => [false, RotatingFileHandler::FILE_PER_DAY, $dayCallback],
 
             'Rotation is triggered when the file of the current month is not present'
-                => array(true, RotatingFileHandler::FILE_PER_MONTH, $monthCallback),
+                => [true, RotatingFileHandler::FILE_PER_MONTH, $monthCallback],
             'Rotation is not triggered when the file of the current month is already present'
-                => array(false, RotatingFileHandler::FILE_PER_MONTH, $monthCallback),
+                => [false, RotatingFileHandler::FILE_PER_MONTH, $monthCallback],
 
             'Rotation is triggered when the file of the current year is not present'
-                => array(true, RotatingFileHandler::FILE_PER_YEAR, $yearCallback),
+                => [true, RotatingFileHandler::FILE_PER_YEAR, $yearCallback],
             'Rotation is not triggered when the file of the current year is already present'
-                => array(false, RotatingFileHandler::FILE_PER_YEAR, $yearCallback),
-        );
+                => [false, RotatingFileHandler::FILE_PER_YEAR, $yearCallback],
+        ];
     }
 
     /**
@@ -150,13 +149,13 @@ class RotatingFileHandlerTest extends TestCase
 
     public function dateFormatProvider()
     {
-        return array(
-            array(RotatingFileHandler::FILE_PER_DAY, true),
-            array(RotatingFileHandler::FILE_PER_MONTH, true),
-            array(RotatingFileHandler::FILE_PER_YEAR, true),
-            array('m-d-Y', false),
-            array('Y-m-d-h-i', false)
-        );
+        return [
+            [RotatingFileHandler::FILE_PER_DAY, true],
+            [RotatingFileHandler::FILE_PER_MONTH, true],
+            [RotatingFileHandler::FILE_PER_YEAR, true],
+            ['m-d-Y', false],
+            ['Y-m-d-h-i', false],
+        ];
     }
 
     /**
@@ -174,15 +173,15 @@ class RotatingFileHandlerTest extends TestCase
 
     public function filenameFormatProvider()
     {
-        return array(
-            array('{filename}', false),
-            array('{filename}-{date}', true),
-            array('{date}', true),
-            array('foobar-{date}', true),
-            array('foo-{date}-bar', true),
-            array('{date}-foobar', true),
-            array('foobar', false),
-        );
+        return [
+            ['{filename}', false],
+            ['{filename}-{date}', true],
+            ['{date}', true],
+            ['foobar-{date}', true],
+            ['foo-{date}-bar', true],
+            ['{date}-foobar', true],
+            ['foobar', false],
+        ];
     }
 
     public function testReuseCurrentFile()
diff --git a/tests/Monolog/Handler/SlackHandlerTest.php b/tests/Monolog/Handler/SlackHandlerTest.php
index 31d43b03..3cbb7e4f 100644
--- a/tests/Monolog/Handler/SlackHandlerTest.php
+++ b/tests/Monolog/Handler/SlackHandlerTest.php
@@ -92,25 +92,25 @@ class SlackHandlerTest extends TestCase
 
     public function provideLevelColors()
     {
-        return array(
-            array(Logger::DEBUG,    '%23e3e4e6'),   // escaped #e3e4e6
-            array(Logger::INFO,     'good'),
-            array(Logger::NOTICE,   'good'),
-            array(Logger::WARNING,  'warning'),
-            array(Logger::ERROR,    'danger'),
-            array(Logger::CRITICAL, 'danger'),
-            array(Logger::ALERT,    'danger'),
-            array(Logger::EMERGENCY,'danger'),
-        );
+        return [
+            [Logger::DEBUG,    '%23e3e4e6'],   // escaped #e3e4e6
+            [Logger::INFO,     'good'],
+            [Logger::NOTICE,   'good'],
+            [Logger::WARNING,  'warning'],
+            [Logger::ERROR,    'danger'],
+            [Logger::CRITICAL, 'danger'],
+            [Logger::ALERT,    'danger'],
+            [Logger::EMERGENCY,'danger'],
+        ];
     }
 
     private function createHandler($token = 'myToken', $channel = 'channel1', $username = 'Monolog', $useAttachment = true, $iconEmoji = null, $useShortAttachment = false, $includeExtra = false)
     {
-        $constructorArgs = array($token, $channel, $username, $useAttachment, $iconEmoji, Logger::DEBUG, true, $useShortAttachment, $includeExtra);
+        $constructorArgs = [$token, $channel, $username, $useAttachment, $iconEmoji, Logger::DEBUG, true, $useShortAttachment, $includeExtra];
         $this->res = fopen('php://memory', 'a');
         $this->handler = $this->getMock(
             '\Monolog\Handler\SlackHandler',
-            array('fsockopen', 'streamSetTimeout', 'closeSocket'),
+            ['fsockopen', 'streamSetTimeout', 'closeSocket'],
             $constructorArgs
         );
 
diff --git a/tests/Monolog/Handler/SocketHandlerTest.php b/tests/Monolog/Handler/SocketHandlerTest.php
index fcb05ef0..5aaead64 100644
--- a/tests/Monolog/Handler/SocketHandlerTest.php
+++ b/tests/Monolog/Handler/SocketHandlerTest.php
@@ -88,7 +88,7 @@ class SocketHandlerTest extends TestCase
      */
     public function testExceptionIsThrownOnFsockopenError()
     {
-        $this->setMockHandler(array('fsockopen'));
+        $this->setMockHandler(['fsockopen']);
         $this->handler->expects($this->once())
             ->method('fsockopen')
             ->will($this->returnValue(false));
@@ -100,7 +100,7 @@ class SocketHandlerTest extends TestCase
      */
     public function testExceptionIsThrownOnPfsockopenError()
     {
-        $this->setMockHandler(array('pfsockopen'));
+        $this->setMockHandler(['pfsockopen']);
         $this->handler->expects($this->once())
             ->method('pfsockopen')
             ->will($this->returnValue(false));
@@ -113,7 +113,7 @@ class SocketHandlerTest extends TestCase
      */
     public function testExceptionIsThrownIfCannotSetTimeout()
     {
-        $this->setMockHandler(array('streamSetTimeout'));
+        $this->setMockHandler(['streamSetTimeout']);
         $this->handler->expects($this->once())
             ->method('streamSetTimeout')
             ->will($this->returnValue(false));
@@ -125,13 +125,13 @@ class SocketHandlerTest extends TestCase
      */
     public function testWriteFailsOnIfFwriteReturnsFalse()
     {
-        $this->setMockHandler(array('fwrite'));
+        $this->setMockHandler(['fwrite']);
 
         $callback = function ($arg) {
-            $map = array(
+            $map = [
                 'Hello world' => 6,
                 'world' => false,
-            );
+            ];
 
             return $map[$arg];
         };
@@ -148,13 +148,13 @@ class SocketHandlerTest extends TestCase
      */
     public function testWriteFailsIfStreamTimesOut()
     {
-        $this->setMockHandler(array('fwrite', 'streamGetMetadata'));
+        $this->setMockHandler(['fwrite', 'streamGetMetadata']);
 
         $callback = function ($arg) {
-            $map = array(
+            $map = [
                 'Hello world' => 6,
                 'world' => 5,
-            );
+            ];
 
             return $map[$arg];
         };
@@ -164,7 +164,7 @@ class SocketHandlerTest extends TestCase
             ->will($this->returnCallback($callback));
         $this->handler->expects($this->exactly(1))
             ->method('streamGetMetadata')
-            ->will($this->returnValue(array('timed_out' => true)));
+            ->will($this->returnValue(['timed_out' => true]));
 
         $this->writeRecord('Hello world');
     }
@@ -174,7 +174,7 @@ class SocketHandlerTest extends TestCase
      */
     public function testWriteFailsOnIncompleteWrite()
     {
-        $this->setMockHandler(array('fwrite', 'streamGetMetadata'));
+        $this->setMockHandler(['fwrite', 'streamGetMetadata']);
 
         $res = $this->res;
         $callback = function ($string) use ($res) {
@@ -188,7 +188,7 @@ class SocketHandlerTest extends TestCase
             ->will($this->returnCallback($callback));
         $this->handler->expects($this->exactly(1))
             ->method('streamGetMetadata')
-            ->will($this->returnValue(array('timed_out' => false)));
+            ->will($this->returnValue(['timed_out' => false]));
 
         $this->writeRecord('Hello world');
     }
@@ -205,13 +205,13 @@ class SocketHandlerTest extends TestCase
 
     public function testWriteWithMock()
     {
-        $this->setMockHandler(array('fwrite'));
+        $this->setMockHandler(['fwrite']);
 
         $callback = function ($arg) {
-            $map = array(
+            $map = [
                 'Hello world' => 6,
                 'world' => 5,
-            );
+            ];
 
             return $map[$arg];
         };
@@ -247,7 +247,7 @@ class SocketHandlerTest extends TestCase
      */
     public function testAvoidInfiniteLoopWhenNoDataIsWrittenForAWritingTimeoutSeconds()
     {
-        $this->setMockHandler(array('fwrite', 'streamGetMetadata'));
+        $this->setMockHandler(['fwrite', 'streamGetMetadata']);
 
         $this->handler->expects($this->any())
             ->method('fwrite')
@@ -255,7 +255,7 @@ class SocketHandlerTest extends TestCase
 
         $this->handler->expects($this->any())
             ->method('streamGetMetadata')
-            ->will($this->returnValue(array('timed_out' => false)));
+            ->will($this->returnValue(['timed_out' => false]));
 
         $this->handler->setWritingTimeout(1);
 
@@ -273,17 +273,17 @@ class SocketHandlerTest extends TestCase
         $this->handler->handle($this->getRecord(Logger::WARNING, $string));
     }
 
-    private function setMockHandler(array $methods = array())
+    private function setMockHandler(array $methods = [])
     {
         $this->res = fopen('php://memory', 'a');
 
-        $defaultMethods = array('fsockopen', 'pfsockopen', 'streamSetTimeout');
+        $defaultMethods = ['fsockopen', 'pfsockopen', 'streamSetTimeout'];
         $newMethods = array_diff($methods, $defaultMethods);
 
         $finalMethods = array_merge($defaultMethods, $newMethods);
 
         $this->handler = $this->getMock(
-            '\Monolog\Handler\SocketHandler', $finalMethods, array('localhost:1234')
+            '\Monolog\Handler\SocketHandler', $finalMethods, ['localhost:1234']
         );
 
         if (!in_array('fsockopen', $methods)) {
diff --git a/tests/Monolog/Handler/StreamHandlerTest.php b/tests/Monolog/Handler/StreamHandlerTest.php
index e4088fa0..d5234eef 100644
--- a/tests/Monolog/Handler/StreamHandlerTest.php
+++ b/tests/Monolog/Handler/StreamHandlerTest.php
@@ -93,11 +93,11 @@ class StreamHandlerTest extends TestCase
 
     public function invalidArgumentProvider()
     {
-        return array(
-            array(1),
-            array(array()),
-            array(array('bogus://url')),
-        );
+        return [
+            [1],
+            [[]],
+            [['bogus://url']],
+        ];
     }
 
     /**
diff --git a/tests/Monolog/Handler/SwiftMailerHandlerTest.php b/tests/Monolog/Handler/SwiftMailerHandlerTest.php
index 5e1dbbab..64ad0887 100644
--- a/tests/Monolog/Handler/SwiftMailerHandlerTest.php
+++ b/tests/Monolog/Handler/SwiftMailerHandlerTest.php
@@ -37,10 +37,10 @@ class SwiftMailerHandlerTest extends TestCase
         };
         $handler = new SwiftMailerHandler($this->mailer, $callback);
 
-        $records = array(
+        $records = [
             $this->getRecord(Logger::DEBUG),
             $this->getRecord(Logger::INFO),
-        );
+        ];
         $handler->handleBatch($records);
     }
 
@@ -66,9 +66,9 @@ class SwiftMailerHandlerTest extends TestCase
         $handler = new SwiftMailerHandler($this->mailer, $callback);
 
         // Logging 1 record makes this an Emergency
-        $records = array(
+        $records = [
             $this->getRecord(Logger::EMERGENCY),
-        );
+        ];
         $handler->handleBatch($records);
     }
 
@@ -83,14 +83,15 @@ class SwiftMailerHandlerTest extends TestCase
             ->method('send')
             ->with($this->callback(function ($value) use (&$receivedMessage) {
                 $receivedMessage = $value;
+
                 return true;
             }));
 
         $handler = new SwiftMailerHandler($this->mailer, $messageTemplate);
 
-        $records = array(
+        $records = [
             $this->getRecord(Logger::EMERGENCY),
-        );
+        ];
         $handler->handleBatch($records);
 
         $this->assertEquals('Alert: EMERGENCY test', $receivedMessage->getSubject());
@@ -103,10 +104,10 @@ class SwiftMailerHandlerTest extends TestCase
 
         $method = new \ReflectionMethod('Monolog\Handler\SwiftMailerHandler', 'buildMessage');
         $method->setAccessible(true);
-        $method->invokeArgs($handler, array($messageTemplate, array()));
+        $method->invokeArgs($handler, [$messageTemplate, []]);
 
-        $builtMessage1 = $method->invoke($handler, $messageTemplate, array());
-        $builtMessage2 = $method->invoke($handler, $messageTemplate, array());
+        $builtMessage1 = $method->invoke($handler, $messageTemplate, []);
+        $builtMessage2 = $method->invoke($handler, $messageTemplate, []);
 
         $this->assertFalse($builtMessage1->getId() === $builtMessage2->getId(), 'Two different messages have the same id');
     }
diff --git a/tests/Monolog/Handler/SyslogUdpHandlerTest.php b/tests/Monolog/Handler/SyslogUdpHandlerTest.php
index 497812b3..df3b16b2 100644
--- a/tests/Monolog/Handler/SyslogUdpHandlerTest.php
+++ b/tests/Monolog/Handler/SyslogUdpHandlerTest.php
@@ -29,7 +29,7 @@ class SyslogUdpHandlerTest extends \PHPUnit_Framework_TestCase
         $handler = new SyslogUdpHandler("127.0.0.1", 514, "authpriv");
         $handler->setFormatter(new \Monolog\Formatter\ChromePHPFormatter());
 
-        $socket = $this->getMock('\Monolog\Handler\SyslogUdp\UdpSocket', array('write'), array('lol', 'lol'));
+        $socket = $this->getMock('\Monolog\Handler\SyslogUdp\UdpSocket', ['write'], ['lol', 'lol']);
         $socket->expects($this->at(0))
             ->method('write')
             ->with("lol", "<".(LOG_AUTHPRIV + LOG_WARNING).">1 ");
@@ -44,6 +44,6 @@ class SyslogUdpHandlerTest extends \PHPUnit_Framework_TestCase
 
     protected function getRecordWithMessage($msg)
     {
-        return array('message' => $msg, 'level' => \Monolog\Logger::WARNING, 'context' => null, 'extra' => array(), 'channel' => 'lol');
+        return ['message' => $msg, 'level' => \Monolog\Logger::WARNING, 'context' => null, 'extra' => [], 'channel' => 'lol'];
     }
 }
diff --git a/tests/Monolog/Handler/TestHandlerTest.php b/tests/Monolog/Handler/TestHandlerTest.php
index 274bfbcb..9b12d361 100644
--- a/tests/Monolog/Handler/TestHandlerTest.php
+++ b/tests/Monolog/Handler/TestHandlerTest.php
@@ -47,20 +47,20 @@ class TestHandlerTest extends TestCase
 
         $records = $handler->getRecords();
         unset($records[0]['formatted']);
-        $this->assertEquals(array($record), $records);
+        $this->assertEquals([$record], $records);
     }
 
     public function methodProvider()
     {
-        return array(
-            array('Emergency', Logger::EMERGENCY),
-            array('Alert'    , Logger::ALERT),
-            array('Critical' , Logger::CRITICAL),
-            array('Error'    , Logger::ERROR),
-            array('Warning'  , Logger::WARNING),
-            array('Info'     , Logger::INFO),
-            array('Notice'   , Logger::NOTICE),
-            array('Debug'    , Logger::DEBUG),
-        );
+        return [
+            ['Emergency', Logger::EMERGENCY],
+            ['Alert'    , Logger::ALERT],
+            ['Critical' , Logger::CRITICAL],
+            ['Error'    , Logger::ERROR],
+            ['Warning'  , Logger::WARNING],
+            ['Info'     , Logger::INFO],
+            ['Notice'   , Logger::NOTICE],
+            ['Debug'    , Logger::DEBUG],
+        ];
     }
 }
diff --git a/tests/Monolog/Handler/UdpSocketTest.php b/tests/Monolog/Handler/UdpSocketTest.php
index 094da8d3..200857a1 100644
--- a/tests/Monolog/Handler/UdpSocketTest.php
+++ b/tests/Monolog/Handler/UdpSocketTest.php
@@ -21,7 +21,7 @@ class UdpSocketTest extends TestCase
 {
     public function testWeDoNotTruncateShortMessages()
     {
-        $socket = $this->getMock('\Monolog\Handler\SyslogUdp\UdpSocket', array('send'), array('lol', 'lol'));
+        $socket = $this->getMock('\Monolog\Handler\SyslogUdp\UdpSocket', ['send'], ['lol', 'lol']);
 
         $socket->expects($this->at(0))
             ->method('send')
@@ -32,7 +32,7 @@ class UdpSocketTest extends TestCase
 
     public function testLongMessagesAreTruncated()
     {
-        $socket = $this->getMock('\Monolog\Handler\SyslogUdp\UdpSocket', array('send'), array('lol', 'lol'));
+        $socket = $this->getMock('\Monolog\Handler\SyslogUdp\UdpSocket', ['send'], ['lol', 'lol']);
 
         $truncatedString = str_repeat("derp", 16254).'d';
 
diff --git a/tests/Monolog/Handler/WhatFailureGroupHandlerTest.php b/tests/Monolog/Handler/WhatFailureGroupHandlerTest.php
index e16a70c5..d763ecbd 100644
--- a/tests/Monolog/Handler/WhatFailureGroupHandlerTest.php
+++ b/tests/Monolog/Handler/WhatFailureGroupHandlerTest.php
@@ -22,7 +22,7 @@ class WhatFailureGroupHandlerTest extends TestCase
      */
     public function testConstructorOnlyTakesHandler()
     {
-        new WhatFailureGroupHandler(array(new TestHandler(), "foo"));
+        new WhatFailureGroupHandler([new TestHandler(), "foo"]);
     }
 
     /**
@@ -31,7 +31,7 @@ class WhatFailureGroupHandlerTest extends TestCase
      */
     public function testHandle()
     {
-        $testHandlers = array(new TestHandler(), new TestHandler());
+        $testHandlers = [new TestHandler(), new TestHandler()];
         $handler = new WhatFailureGroupHandler($testHandlers);
         $handler->handle($this->getRecord(Logger::DEBUG));
         $handler->handle($this->getRecord(Logger::INFO));
@@ -47,9 +47,9 @@ class WhatFailureGroupHandlerTest extends TestCase
      */
     public function testHandleBatch()
     {
-        $testHandlers = array(new TestHandler(), new TestHandler());
+        $testHandlers = [new TestHandler(), new TestHandler()];
         $handler = new WhatFailureGroupHandler($testHandlers);
-        $handler->handleBatch(array($this->getRecord(Logger::DEBUG), $this->getRecord(Logger::INFO)));
+        $handler->handleBatch([$this->getRecord(Logger::DEBUG), $this->getRecord(Logger::INFO)]);
         foreach ($testHandlers as $test) {
             $this->assertTrue($test->hasDebugRecords());
             $this->assertTrue($test->hasInfoRecords());
@@ -62,7 +62,7 @@ class WhatFailureGroupHandlerTest extends TestCase
      */
     public function testIsHandling()
     {
-        $testHandlers = array(new TestHandler(Logger::ERROR), new TestHandler(Logger::WARNING));
+        $testHandlers = [new TestHandler(Logger::ERROR), new TestHandler(Logger::WARNING)];
         $handler = new WhatFailureGroupHandler($testHandlers);
         $this->assertTrue($handler->isHandling($this->getRecord(Logger::ERROR)));
         $this->assertTrue($handler->isHandling($this->getRecord(Logger::WARNING)));
@@ -75,7 +75,7 @@ class WhatFailureGroupHandlerTest extends TestCase
     public function testHandleUsesProcessors()
     {
         $test = new TestHandler();
-        $handler = new WhatFailureGroupHandler(array($test));
+        $handler = new WhatFailureGroupHandler([$test]);
         $handler->pushProcessor(function ($record) {
             $record['extra']['foo'] = true;
 
@@ -94,7 +94,7 @@ class WhatFailureGroupHandlerTest extends TestCase
     {
         $test = new TestHandler();
         $exception = new ExceptionTestHandler();
-        $handler = new WhatFailureGroupHandler(array($exception, $test, $exception));
+        $handler = new WhatFailureGroupHandler([$exception, $test, $exception]);
         $handler->pushProcessor(function ($record) {
             $record['extra']['foo'] = true;
 
diff --git a/tests/Monolog/Handler/ZendMonitorHandlerTest.php b/tests/Monolog/Handler/ZendMonitorHandlerTest.php
index 36ac4a35..999ad1d3 100644
--- a/tests/Monolog/Handler/ZendMonitorHandlerTest.php
+++ b/tests/Monolog/Handler/ZendMonitorHandlerTest.php
@@ -29,12 +29,12 @@ class ZendMonitorHandlerTest extends TestCase
     public function testWrite()
     {
         $record = $this->getRecord();
-        $formatterResult = array(
+        $formatterResult = [
             'message' => $record['message'],
-        );
+        ];
 
         $zendMonitor = $this->getMockBuilder('Monolog\Handler\ZendMonitorHandler')
-            ->setMethods(array('writeZendMonitorCustomEvent', 'getDefaultFormatter'))
+            ->setMethods(['writeZendMonitorCustomEvent', 'getDefaultFormatter'])
             ->getMock();
 
         $formatterMock = $this->getMockBuilder('Monolog\Formatter\NormalizerFormatter')
diff --git a/tests/Monolog/LoggerTest.php b/tests/Monolog/LoggerTest.php
index e4d48963..005eeb25 100644
--- a/tests/Monolog/LoggerTest.php
+++ b/tests/Monolog/LoggerTest.php
@@ -38,7 +38,7 @@ class LoggerTest extends \PHPUnit_Framework_TestCase
      */
     public function testWithName()
     {
-        $first = new Logger('first', array($handler = new TestHandler()));
+        $first = new Logger('first', [$handler = new TestHandler()]);
         $second = $first->withName('second');
 
         $this->assertSame('first', $first->getName());
@@ -90,7 +90,7 @@ class LoggerTest extends \PHPUnit_Framework_TestCase
     {
         $logger = new Logger(__METHOD__);
 
-        $handler = $this->getMock('Monolog\Handler\NullHandler', array('handle'));
+        $handler = $this->getMock('Monolog\Handler\NullHandler', ['handle']);
         $handler->expects($this->once())
             ->method('handle');
         $logger->pushHandler($handler);
@@ -105,7 +105,7 @@ class LoggerTest extends \PHPUnit_Framework_TestCase
     {
         $logger = new Logger(__METHOD__);
 
-        $handler = $this->getMock('Monolog\Handler\NullHandler', array('handle'), array(Logger::ERROR));
+        $handler = $this->getMock('Monolog\Handler\NullHandler', ['handle'], [Logger::ERROR]);
         $handler->expects($this->never())
             ->method('handle');
         $logger->pushHandler($handler);
@@ -117,7 +117,7 @@ class LoggerTest extends \PHPUnit_Framework_TestCase
     {
         $handler1 = new TestHandler;
         $handler2 = new TestHandler;
-        $logger = new Logger(__METHOD__, array($handler1, $handler2));
+        $logger = new Logger(__METHOD__, [$handler1, $handler2]);
 
         $this->assertEquals($handler1, $logger->popHandler());
         $this->assertEquals($handler2, $logger->popHandler());
@@ -127,7 +127,7 @@ class LoggerTest extends \PHPUnit_Framework_TestCase
     {
         $processor1 = new WebProcessor;
         $processor2 = new WebProcessor;
-        $logger = new Logger(__METHOD__, array(), array($processor1, $processor2));
+        $logger = new Logger(__METHOD__, [], [$processor1, $processor2]);
 
         $this->assertEquals($processor1, $logger->popProcessor());
         $this->assertEquals($processor2, $logger->popProcessor());
@@ -162,18 +162,18 @@ class LoggerTest extends \PHPUnit_Framework_TestCase
         $handler2 = new TestHandler;
 
         $logger->pushHandler($handler1);
-        $logger->setHandlers(array($handler2));
+        $logger->setHandlers([$handler2]);
 
         // handler1 has been removed
-        $this->assertEquals(array($handler2), $logger->getHandlers());
+        $this->assertEquals([$handler2], $logger->getHandlers());
 
-        $logger->setHandlers(array(
+        $logger->setHandlers([
             "AMapKey" => $handler1,
             "Woop" => $handler2,
-        ));
+        ]);
 
         // Keys have been scrubbed
-        $this->assertEquals(array($handler1, $handler2), $logger->getHandlers());
+        $this->assertEquals([$handler1, $handler2], $logger->getHandlers());
     }
 
     /**
@@ -232,7 +232,7 @@ class LoggerTest extends \PHPUnit_Framework_TestCase
 
         $processor = $this->getMockBuilder('Monolog\Processor\WebProcessor')
             ->disableOriginalConstructor()
-            ->setMethods(array('__invoke'))
+            ->setMethods(['__invoke'])
             ->getMock()
         ;
         $processor->expects($this->once())
@@ -339,7 +339,7 @@ class LoggerTest extends \PHPUnit_Framework_TestCase
             ->method('handle')
         ;
 
-        $logger = new Logger(__METHOD__, array('last' => $handler3, 'second' => $handler2, 'first' => $handler1));
+        $logger = new Logger(__METHOD__, ['last' => $handler3, 'second' => $handler2, 'first' => $handler1]);
 
         $logger->debug('test');
     }
@@ -456,17 +456,17 @@ class LoggerTest extends \PHPUnit_Framework_TestCase
 
     public function logMethodProvider()
     {
-        return array(
+        return [
             // PSR-3 methods
-            array('debug',  Logger::DEBUG),
-            array('info',   Logger::INFO),
-            array('notice', Logger::NOTICE),
-            array('warning',   Logger::WARNING),
-            array('error',    Logger::ERROR),
-            array('critical',   Logger::CRITICAL),
-            array('alert',  Logger::ALERT),
-            array('emergency',  Logger::EMERGENCY),
-        );
+            ['debug',  Logger::DEBUG],
+            ['info',   Logger::INFO],
+            ['notice', Logger::NOTICE],
+            ['warning',   Logger::WARNING],
+            ['error',    Logger::ERROR],
+            ['critical',   Logger::CRITICAL],
+            ['alert',  Logger::ALERT],
+            ['emergency',  Logger::EMERGENCY],
+        ];
     }
 
     /**
@@ -487,7 +487,7 @@ class LoggerTest extends \PHPUnit_Framework_TestCase
     public function setTimezoneProvider()
     {
         return array_map(
-            function ($tz) { return array(new \DateTimeZone($tz)); },
+            function ($tz) { return [new \DateTimeZone($tz)]; },
             \DateTimeZone::listIdentifiers()
         );
     }
@@ -510,10 +510,10 @@ class LoggerTest extends \PHPUnit_Framework_TestCase
 
     public function useMicrosecondTimestampsProvider()
     {
-        return array(
+        return [
             // this has a very small chance of a false negative (1/10^6)
-            'with microseconds' => array(true, 'assertNotSame'),
-            'without microseconds' => array(false, 'assertSame'),
-        );
+            'with microseconds' => [true, 'assertNotSame'],
+            'without microseconds' => [false, 'assertSame'],
+        ];
     }
 }
diff --git a/tests/Monolog/Processor/IntrospectionProcessorTest.php b/tests/Monolog/Processor/IntrospectionProcessorTest.php
index bf850be9..38793efe 100644
--- a/tests/Monolog/Processor/IntrospectionProcessorTest.php
+++ b/tests/Monolog/Processor/IntrospectionProcessorTest.php
@@ -66,10 +66,10 @@ class IntrospectionProcessorTest extends TestCase
 
     public function testLevelTooLow()
     {
-        $input = array(
+        $input = [
             'level' => Logger::DEBUG,
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         $expected = $input;
 
@@ -81,18 +81,18 @@ class IntrospectionProcessorTest extends TestCase
 
     public function testLevelEqual()
     {
-        $input = array(
+        $input = [
             'level' => Logger::CRITICAL,
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         $expected = $input;
-        $expected['extra'] = array(
+        $expected['extra'] = [
             'file' => null,
             'line' => null,
             'class' => 'ReflectionMethod',
             'function' => 'invokeArgs',
-        );
+        ];
 
         $processor = new IntrospectionProcessor(Logger::CRITICAL);
         $actual = $processor($input);
@@ -102,18 +102,18 @@ class IntrospectionProcessorTest extends TestCase
 
     public function testLevelHigher()
     {
-        $input = array(
+        $input = [
             'level' => Logger::EMERGENCY,
-            'extra' => array(),
-        );
+            'extra' => [],
+        ];
 
         $expected = $input;
-        $expected['extra'] = array(
+        $expected['extra'] = [
             'file' => null,
             'line' => null,
             'class' => 'ReflectionMethod',
             'function' => 'invokeArgs',
-        );
+        ];
 
         $processor = new IntrospectionProcessor(Logger::CRITICAL);
         $actual = $processor($input);
diff --git a/tests/Monolog/Processor/PsrLogMessageProcessorTest.php b/tests/Monolog/Processor/PsrLogMessageProcessorTest.php
index 029a0c02..af366377 100644
--- a/tests/Monolog/Processor/PsrLogMessageProcessorTest.php
+++ b/tests/Monolog/Processor/PsrLogMessageProcessorTest.php
@@ -20,24 +20,24 @@ class PsrLogMessageProcessorTest extends \PHPUnit_Framework_TestCase
     {
         $proc = new PsrLogMessageProcessor;
 
-        $message = $proc(array(
+        $message = $proc([
             'message' => '{foo}',
-            'context' => array('foo' => $val),
-        ));
+            'context' => ['foo' => $val],
+        ]);
         $this->assertEquals($expected, $message['message']);
     }
 
     public function getPairs()
     {
-        return array(
-            array('foo',    'foo'),
-            array('3',      '3'),
-            array(3,        '3'),
-            array(null,     ''),
-            array(true,     '1'),
-            array(false,    ''),
-            array(new \stdClass, '[object stdClass]'),
-            array(array(), '[array]'),
-        );
+        return [
+            ['foo',    'foo'],
+            ['3',      '3'],
+            [3,        '3'],
+            [null,     ''],
+            [true,     '1'],
+            [false,    ''],
+            [new \stdClass, '[object stdClass]'],
+            [[], '[array]'],
+        ];
     }
 }
diff --git a/tests/Monolog/Processor/TagProcessorTest.php b/tests/Monolog/Processor/TagProcessorTest.php
index d615c6dc..ec514d77 100644
--- a/tests/Monolog/Processor/TagProcessorTest.php
+++ b/tests/Monolog/Processor/TagProcessorTest.php
@@ -20,7 +20,7 @@ class TagProcessorTest extends TestCase
      */
     public function testProcessor()
     {
-        $tags = array(1, 2, 3);
+        $tags = [1, 2, 3];
         $processor = new TagProcessor($tags);
         $record = $processor($this->getRecord());
 
@@ -32,18 +32,18 @@ class TagProcessorTest extends TestCase
      */
     public function testProcessorTagModification()
     {
-        $tags = array(1, 2, 3);
+        $tags = [1, 2, 3];
         $processor = new TagProcessor($tags);
 
         $record = $processor($this->getRecord());
         $this->assertEquals($tags, $record['extra']['tags']);
 
-        $processor->setTags(array('a', 'b'));
+        $processor->setTags(['a', 'b']);
         $record = $processor($this->getRecord());
-        $this->assertEquals(array('a', 'b'), $record['extra']['tags']);
+        $this->assertEquals(['a', 'b'], $record['extra']['tags']);
 
-        $processor->addTags(array('a', 'c', 'foo' => 'bar'));
+        $processor->addTags(['a', 'c', 'foo' => 'bar']);
         $record = $processor($this->getRecord());
-        $this->assertEquals(array('a', 'b', 'a', 'c', 'foo' => 'bar'), $record['extra']['tags']);
+        $this->assertEquals(['a', 'b', 'a', 'c', 'foo' => 'bar'], $record['extra']['tags']);
     }
 }
diff --git a/tests/Monolog/Processor/WebProcessorTest.php b/tests/Monolog/Processor/WebProcessorTest.php
index f2318242..abaa1aee 100644
--- a/tests/Monolog/Processor/WebProcessorTest.php
+++ b/tests/Monolog/Processor/WebProcessorTest.php
@@ -17,14 +17,14 @@ class WebProcessorTest extends TestCase
 {
     public function testProcessor()
     {
-        $server = array(
+        $server = [
             'REQUEST_URI'    => 'A',
             'REMOTE_ADDR'    => 'B',
             'REQUEST_METHOD' => 'C',
             'HTTP_REFERER'   => 'D',
             'SERVER_NAME'    => 'F',
             'UNIQUE_ID'      => 'G',
-        );
+        ];
 
         $processor = new WebProcessor($server);
         $record = $processor($this->getRecord());
@@ -38,10 +38,10 @@ class WebProcessorTest extends TestCase
 
     public function testProcessorDoNothingIfNoRequestUri()
     {
-        $server = array(
+        $server = [
             'REMOTE_ADDR'    => 'B',
             'REQUEST_METHOD' => 'C',
-        );
+        ];
         $processor = new WebProcessor($server);
         $record = $processor($this->getRecord());
         $this->assertEmpty($record['extra']);
@@ -49,12 +49,12 @@ class WebProcessorTest extends TestCase
 
     public function testProcessorReturnNullIfNoHttpReferer()
     {
-        $server = array(
+        $server = [
             'REQUEST_URI'    => 'A',
             'REMOTE_ADDR'    => 'B',
             'REQUEST_METHOD' => 'C',
             'SERVER_NAME'    => 'F',
-        );
+        ];
         $processor = new WebProcessor($server);
         $record = $processor($this->getRecord());
         $this->assertNull($record['extra']['referrer']);
@@ -62,12 +62,12 @@ class WebProcessorTest extends TestCase
 
     public function testProcessorDoesNotAddUniqueIdIfNotPresent()
     {
-        $server = array(
+        $server = [
             'REQUEST_URI'    => 'A',
             'REMOTE_ADDR'    => 'B',
             'REQUEST_METHOD' => 'C',
             'SERVER_NAME'    => 'F',
-        );
+        ];
         $processor = new WebProcessor($server);
         $record = $processor($this->getRecord());
         $this->assertFalse(isset($record['extra']['unique_id']));
@@ -75,32 +75,32 @@ class WebProcessorTest extends TestCase
 
     public function testProcessorAddsOnlyRequestedExtraFields()
     {
-        $server = array(
+        $server = [
             'REQUEST_URI'    => 'A',
             'REMOTE_ADDR'    => 'B',
             'REQUEST_METHOD' => 'C',
             'SERVER_NAME'    => 'F',
-        );
+        ];
 
-        $processor = new WebProcessor($server, array('url', 'http_method'));
+        $processor = new WebProcessor($server, ['url', 'http_method']);
         $record = $processor($this->getRecord());
 
-        $this->assertSame(array('url' => 'A', 'http_method' => 'C'), $record['extra']);
+        $this->assertSame(['url' => 'A', 'http_method' => 'C'], $record['extra']);
     }
 
     public function testProcessorConfiguringOfExtraFields()
     {
-        $server = array(
+        $server = [
             'REQUEST_URI'    => 'A',
             'REMOTE_ADDR'    => 'B',
             'REQUEST_METHOD' => 'C',
             'SERVER_NAME'    => 'F',
-        );
+        ];
 
-        $processor = new WebProcessor($server, array('url' => 'REMOTE_ADDR'));
+        $processor = new WebProcessor($server, ['url' => 'REMOTE_ADDR']);
         $record = $processor($this->getRecord());
 
-        $this->assertSame(array('url' => 'B'), $record['extra']);
+        $this->assertSame(['url' => 'B'], $record['extra']);
     }
 
     /**
diff --git a/tests/Monolog/RegistryTest.php b/tests/Monolog/RegistryTest.php
index 15fdfbd2..f1d1abac 100644
--- a/tests/Monolog/RegistryTest.php
+++ b/tests/Monolog/RegistryTest.php
@@ -38,26 +38,26 @@ class RegistryTest extends \PHPUnit_Framework_TestCase
         $logger2 = new Logger('test2');
         $logger3 = new Logger('test3');
 
-        return array(
+        return [
             // only instances
-            array(
-                array($logger1),
-                array($logger1, $logger2),
-                array(true, false),
-            ),
+            [
+                [$logger1],
+                [$logger1, $logger2],
+                [true, false],
+            ],
             // only names
-            array(
-                array($logger1),
-                array('test1', 'test2'),
-                array(true, false),
-            ),
+            [
+                [$logger1],
+                ['test1', 'test2'],
+                [true, false],
+            ],
             // mixed case
-            array(
-                array($logger1, $logger2),
-                array('test1', $logger2, 'test3', $logger3),
-                array(true, true, false, false),
-            ),
-        );
+            [
+                [$logger1, $logger2],
+                ['test1', $logger2, 'test3', $logger3],
+                [true, true, false, false],
+            ],
+        ];
     }
 
     /**
@@ -90,10 +90,10 @@ class RegistryTest extends \PHPUnit_Framework_TestCase
     {
         $logger1 = new Logger('test1');
 
-        return array(
-            array($logger1, $logger1),
-            array($logger1, 'test1'),
-        );
+        return [
+            [$logger1, $logger1],
+            [$logger1, 'test1'],
+        ];
     }
 
     /**
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 0ee69323..ab5efb79 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 date_default_timezone_set('UTC');
 
 require __DIR__.'/../vendor/autoload.php';