Released version 3.1.1

"03/mar/2018: We've upgraded the server bandwidth. This is however still not sufficient to handle all empty user agent connections. Please update the user agent in your scripts accordingly or contact us so we can discuss it."

.travis.yml

@@ -5,20 +5,11 @@ php:
     - 5.6
     - 7.0
     - 7.1
+    - 7.2
 
-script:
-    - vendor/bin/tester tests -s -p php -c tests/php-unix.ini $COVERAGE
-    - php temp/code-checker/src/code-checker.php --short-arrays
-
-after_failure:
-    # Print *.actual content
-    - for i in $(find tests -name \*.actual); do echo "--- $i"; cat $i; echo; echo; done
-
-before_script:
-    # Install Nette Tester & Code Checker
-    - travis_retry composer install --no-interaction
-    - travis_retry composer create-project nette/code-checker temp/code-checker ~2.5 --no-interaction
-    - if [ $TRAVIS_PHP_VERSION == "7.0" ]; then COVERAGE="-p phpdbg --coverage ./coverage.xml --coverage-src ./src"; fi
+before_install:
+    # turn off XDebug
+    - phpenv config-rm xdebug.ini || return 0
 
     # Create databases.ini
     - cp ./tests/databases.travis.ini ./tests/databases.ini
@@ -26,16 +17,49 @@ before_script:
     # Create Postgre database
     - psql -c 'CREATE DATABASE dibi_test' -U postgres
 
-after_script:
-    # Report Code Coverage
-    - >
-      if [ "$COVERAGE" != "" ]; then
-      wget https://github.com/satooshi/php-coveralls/releases/download/v1.0.1/coveralls.phar
-      && php coveralls.phar --verbose --config tests/.coveralls.yml
-      || true; fi
+install:
+    - travis_retry composer install --no-progress --prefer-dist
+
+script:
+    - vendor/bin/tester tests -s
+
+after_failure:
+    # Print *.actual content
+    - for i in $(find tests -name \*.actual); do echo "--- $i"; cat $i; echo; echo; done
+
+jobs:
+    include:
+        -   stage: Code Standard Checker
+            php: 7.1
+            install:
+                # Install Nette Code Checker
+                - travis_retry composer create-project nette/code-checker temp/code-checker ~2 --no-progress
+                # Install Nette Coding Standard
+                - travis_retry composer create-project nette/coding-standard temp/coding-standard --no-progress
+            script:
+                - php temp/code-checker/src/code-checker.php --short-arrays
+                - php temp/coding-standard/ecs check src tests examples --config temp/coding-standard/coding-standard-php56.neon
+
+
+        -   stage: Code Coverage
+            php: 7.1
+            script:
+                - vendor/bin/tester -p phpdbg tests -s --coverage ./coverage.xml --coverage-src ./src
+            after_script:
+                - wget https://github.com/satooshi/php-coveralls/releases/download/v1.0.1/coveralls.phar
+                - php coveralls.phar --verbose --config tests/.coveralls.yml
+
+
+    allow_failures:
+        -   php: 7.2
+        -   stage: Code Coverage
+
 
 sudo: false
 
 cache:
     directories:
         - $HOME/.composer/cache
+
+notifications:
+    email: false

appveyor.yml

@@ -20,8 +20,8 @@ install:
     - IF EXIST c:\php5 (SET PHP=0) ELSE (SET PHP=1)
     - IF %PHP%==1 mkdir c:\php5
     - IF %PHP%==1 cd c:\php5
-    - IF %PHP%==1 appveyor DownloadFile http://windows.php.net/downloads/releases/archives/php-5.6.14-Win32-VC11-x86.zip
-    - IF %PHP%==1 7z x php-5.6.14-Win32-VC11-x86.zip >nul
+    - IF %PHP%==1 curl https://windows.php.net/downloads/releases/archives/php-5.6.14-Win32-VC11-x86.zip --output php.zip
+    - IF %PHP%==1 7z x php.zip >nul
     - IF %PHP%==1 echo extension_dir=ext >> php.ini
     - IF %PHP%==1 echo extension=php_openssl.dll >> php.ini
     - IF %PHP%==1 appveyor DownloadFile https://files.nette.org/misc/php-sqlsrv.zip
@@ -34,8 +34,8 @@ install:
     - IF EXIST c:\php7 (SET PHP=0) ELSE (SET PHP=1)
     - IF %PHP%==1 mkdir c:\php7
     - IF %PHP%==1 cd c:\php7
-    - IF %PHP%==1 appveyor DownloadFile http://windows.php.net/downloads/releases/archives/php-7.0.3-Win32-VC14-x86.zip
-    - IF %PHP%==1 7z x php-7.0.3-Win32-VC14-x86.zip >nul
+    - IF %PHP%==1 curl https://windows.php.net/downloads/releases/archives/php-7.0.3-Win32-VC14-x86.zip --output php.zip
+    - IF %PHP%==1 7z x php.zip >nul
     - IF %PHP%==1 echo extension_dir=ext >> php.ini
     - IF %PHP%==1 appveyor DownloadFile https://files.nette.org/misc/php-sqlsrv.zip
     - IF %PHP%==1 7z x php-sqlsrv.zip >nul

examples/connecting-to-databases.php

@@ -74,7 +74,7 @@ try {
 		'driver' => 'odbc',
 		'username' => 'root',
 		'password' => '***',
-		'dsn' => 'Driver={Microsoft Access Driver (*.mdb)};Dbq='.__DIR__.'/data/sample.mdb',
+		'dsn' => 'Driver={Microsoft Access Driver (*.mdb)};Dbq=' . __DIR__ . '/data/sample.mdb',
 	]);
 	echo 'OK';
 } catch (Dibi\Exception $e) {
@@ -89,7 +89,7 @@ try {
 	dibi::connect([
 		'driver' => 'postgre',
 		'string' => 'host=localhost port=5432 dbname=mary',
-		'persistent' => TRUE,
+		'persistent' => true,
 	]);
 	echo 'OK';
 } catch (Dibi\Exception $e) {

examples/query-language-and-conditions.php

@@ -14,13 +14,13 @@ dibi::connect([
 
 
 // some variables
-$cond1 = TRUE;
-$cond2 = FALSE;
+$cond1 = true;
+$cond2 = false;
 $foo = -1;
 $bar = 2;
 
 // conditional variable
-$name = $cond1 ? 'K%' : NULL;
+$name = $cond1 ? 'K%' : null;
 
 // if & end
 dibi::test('

examples/query-language-basic-examples.php

@@ -33,7 +33,7 @@ dibi::test('
 	REPLACE INTO products', [
 		'title' => 'Super product',
 		'price' => 318,
-		'active' => TRUE,
+		'active' => true,
 ]);
 // -> REPLACE INTO products ([title], [price], [active]) VALUES ('Super product', 318, 1)
 
@@ -42,7 +42,7 @@ dibi::test('
 $array = [
 	'title' => 'Super Product',
 	'price' => 12,
-	'brand' => NULL,
+	'brand' => null,
 	'created' => new DateTime,
 ];
 dibi::test('INSERT INTO products', $array, $array, $array);

examples/tracy-and-exceptions.php

@@ -13,7 +13,7 @@ $connection = dibi::connect([
 	'driver' => 'sqlite3',
 	'database' => 'data/sample.s3db',
 	'profiler' => [
-		'run' => TRUE,
+		'run' => true,
 	],
 ]);
 

examples/tracy.php

@@ -13,7 +13,7 @@ $connection = dibi::connect([
 	'driver' => 'sqlite3',
 	'database' => 'data/sample.s3db',
 	'profiler' => [
-		'run' => TRUE,
+		'run' => true,
 	],
 ]);
 

examples/using-fluent-syntax.php

@@ -19,7 +19,7 @@ $id = 10;
 $record = [
 	'title' => 'Super product',
 	'price' => 318,
-	'active' => TRUE,
+	'active' => true,
 ];
 
 // SELECT ...

examples/using-logger.php

@@ -14,7 +14,7 @@ dibi::connect([
 	'database' => 'data/sample.s3db',
 	// enable query logging to this file
 	'profiler' => [
-		'run' => TRUE,
+		'run' => true,
 		'file' => 'data/log.sql',
 	],
 ]);

examples/using-profiler.php

@@ -13,7 +13,7 @@ dibi::connect([
 	'driver' => 'sqlite3',
 	'database' => 'data/sample.s3db',
 	'profiler' => [
-		'run' => TRUE,
+		'run' => true,
 	],
 ]);
 

examples/using-substitutions.php

@@ -38,6 +38,7 @@ function substFallBack($expr)
 	}
 }
 
+
 // define callback
 dibi::getSubstitutes()->setCallback('substFallBack');
 

readme.md

@@ -49,7 +49,7 @@ dibi::query('SELECT * FROM users WHERE id = ?', $id);
 
 $arr = [
     'name' => 'John',
-    'is_admin'  => TRUE,
+    'is_admin'  => true,
 ];
 dibi::query('INSERT INTO users', $arr);
 // INSERT INTO users (`name`, `is_admin`) VALUES ('John', 1)

src/Dibi/Bridges/Nette/DibiExtension22.php

@@ -20,7 +20,7 @@ class DibiExtension22 extends Nette\DI\CompilerExtension
 	private $debugMode;
 
 
-	public function __construct($debugMode = NULL)
+	public function __construct($debugMode = null)
 	{
 		$this->debugMode = $debugMode;
 	}
@@ -31,7 +31,7 @@ class DibiExtension22 extends Nette\DI\CompilerExtension
 		$container = $this->getContainerBuilder();
 		$config = $this->getConfig();
 
-		if ($this->debugMode === NULL) {
+		if ($this->debugMode === null) {
 			$this->debugMode = $container->parameters['debugMode'];
 		}
 
@@ -51,7 +51,7 @@ class DibiExtension22 extends Nette\DI\CompilerExtension
 
 		$connection = $container->addDefinition($this->prefix('connection'))
 			->setClass('Dibi\Connection', [$config])
-			->setAutowired(isset($config['autowired']) ? $config['autowired'] : TRUE);
+			->setAutowired(isset($config['autowired']) ? $config['autowired'] : true);
 
 		if (class_exists('Tracy\Debugger')) {
 			$connection->addSetup(
@@ -62,11 +62,10 @@ class DibiExtension22 extends Nette\DI\CompilerExtension
 		if ($useProfiler) {
 			$panel = $container->addDefinition($this->prefix('panel'))
 				->setClass('Dibi\Bridges\Tracy\Panel', [
-					isset($config['explain']) ? $config['explain'] : TRUE,
-					isset($config['filter']) && $config['filter'] === FALSE ? Dibi\Event::ALL : Dibi\Event::QUERY,
+					isset($config['explain']) ? $config['explain'] : true,
+					isset($config['filter']) && $config['filter'] === false ? Dibi\Event::ALL : Dibi\Event::QUERY,
 				]);
 			$connection->addSetup([$panel, 'register'], [$connection]);
 		}
 	}
-
 }

src/Dibi/Bridges/Nette/config.sample.neon

@@ -9,4 +9,4 @@ dibi:
 	username: root
 	password: ***
 	database: foo
-	lazy: TRUE
+	lazy: true

src/Dibi/Bridges/Tracy/Panel.php

@@ -33,7 +33,7 @@ class Panel implements Tracy\IBarPanel
 	private $events = [];
 
 
-	public function __construct($explain = TRUE, $filter = NULL)
+	public function __construct($explain = true, $filter = null)
 	{
 		$this->filter = $filter ? (int) $filter : Event::QUERY;
 		$this->explain = $explain;
@@ -63,14 +63,14 @@ class Panel implements Tracy\IBarPanel
 
 	/**
 	 * Returns blue-screen custom tab.
-	 * @return array|NULL
+	 * @return array|null
 	 */
 	public static function renderException($e)
 	{
 		if ($e instanceof Dibi\Exception && $e->getSql()) {
 			return [
 				'tab' => 'SQL',
-				'panel' => Helpers::dump($e->getSql(), TRUE),
+				'panel' => Helpers::dump($e->getSql(), true),
 			];
 		}
 	}
@@ -96,25 +96,25 @@ class Panel implements Tracy\IBarPanel
 
 	/**
 	 * Returns HTML code for custom panel. (Tracy\IBarPanel)
-	 * @return string|NULL
+	 * @return string|null
 	 */
 	public function getPanel()
 	{
 		if (!$this->events) {
-			return NULL;
+			return null;
 		}
 
-		$totalTime = $s = NULL;
+		$totalTime = $s = null;
 		foreach ($this->events as $event) {
 			$totalTime += $event->time;
 			$connection = $event->connection;
-			$explain = NULL; // EXPLAIN is called here to work SELECT FOUND_ROWS()
+			$explain = null; // EXPLAIN is called here to work SELECT FOUND_ROWS()
 			if ($this->explain && $event->type === Event::SELECT) {
 				try {
 					$backup = [$connection->onEvent, \dibi::$numOfQueries, \dibi::$totalTime];
-					$connection->onEvent = NULL;
+					$connection->onEvent = null;
 					$cmd = is_string($this->explain) ? $this->explain : ($connection->getConfig('driver') === 'oracle' ? 'EXPLAIN PLAN FOR' : 'EXPLAIN');
-					$explain = @Helpers::dump($connection->nativeQuery("$cmd $event->sql"), TRUE);
+					$explain = @Helpers::dump($connection->nativeQuery("$cmd $event->sql"), true);
 				} catch (Dibi\Exception $e) {
 				}
 				list($connection->onEvent, \dibi::$numOfQueries, \dibi::$totalTime) = $backup;
@@ -127,7 +127,7 @@ class Panel implements Tracy\IBarPanel
 				$s .= "<br /><a href='#tracy-debug-DibiProfiler-row-$counter' class='tracy-toggle tracy-collapsed' rel='#tracy-debug-DibiProfiler-row-$counter'>explain</a>";
 			}
 
-			$s .= '</td><td class="tracy-DibiProfiler-sql">' . Helpers::dump(strlen($event->sql) > self::$maxLength ? substr($event->sql, 0, self::$maxLength) . '...' : $event->sql, TRUE);
+			$s .= '</td><td class="tracy-DibiProfiler-sql">' . Helpers::dump(strlen($event->sql) > self::$maxLength ? substr($event->sql, 0, self::$maxLength) . '...' : $event->sql, true);
 			if ($explain) {
 				$s .= "<div id='tracy-debug-DibiProfiler-row-$counter' class='tracy-collapsed'>{$explain}</div>";
 			}
@@ -142,8 +142,8 @@ class Panel implements Tracy\IBarPanel
 			#tracy-debug .tracy-DibiProfiler-source { color: #999 !important }
 			#tracy-debug tracy-DibiProfiler tr table { margin: 8px 0; max-height: 150px; overflow:auto } </style>
 			<h1>Queries: ' . count($this->events)
-				. ($totalTime === NULL ? '' : ', time: ' . number_format($totalTime * 1000, 1, '.', ' ') . ' ms') . ', '
-				. htmlSpecialChars($connection->getConfig('driver') . ($connection->getConfig('name') ? '/' . $connection->getConfig('name') : '')
+				. ($totalTime === null ? '' : ', time: ' . number_format($totalTime * 1000, 1, '.', ' ') . ' ms') . ', '
+				. htmlspecialchars($connection->getConfig('driver') . ($connection->getConfig('name') ? '/' . $connection->getConfig('name') : '')
 				. ($connection->getConfig('host') ? ' @ ' . $connection->getConfig('host') : '')) . '</h1>
 			<div class="tracy-inner tracy-DibiProfiler">
 			<table>
@@ -151,5 +151,4 @@ class Panel implements Tracy\IBarPanel
 			</table>
 			</div>';
 	}
-
 }

src/Dibi/Connection.php

@@ -33,7 +33,7 @@ class Connection
 	private $translator;
 
 	/** @var bool  Is connected? */
-	private $connected = FALSE;
+	private $connected = false;
 
 	/** @var HashMap Substitutes for identifiers */
 	private $substitutes;
@@ -41,19 +41,18 @@ class Connection
 
 	/**
 	 * Connection options: (see driver-specific options too)
-	 *   - lazy (bool) => if TRUE, connection will be established only when required
+	 *   - lazy (bool) => if true, connection will be established only when required
 	 *   - result (array) => result set options
 	 *       - formatDateTime => date-time format (if empty, DateTime objects will be returned)
 	 *   - profiler (array or bool)
 	 *       - run (bool) => enable profiler?
 	 *       - file => file to log
 	 *   - substitutes (array) => map of driver specific substitutes (under development)
-
 	 * @param  mixed   connection parameters
 	 * @param  string  connection name
 	 * @throws Exception
 	 */
-	public function __construct($config, $name = NULL)
+	public function __construct($config, $name = null)
 	{
 		if (is_string($config)) {
 			parse_str($config, $config);
@@ -143,10 +142,10 @@ class Connection
 	 */
 	final public function connect()
 	{
-		$event = $this->onEvent ? new Event($this, Event::CONNECT) : NULL;
+		$event = $this->onEvent ? new Event($this, Event::CONNECT) : null;
 		try {
 			$this->driver->connect($this->config);
-			$this->connected = TRUE;
+			$this->connected = true;
 			$event && $this->onEvent($event->done());
 
 		} catch (Exception $e) {
@@ -163,12 +162,12 @@ class Connection
 	final public function disconnect()
 	{
 		$this->driver->disconnect();
-		$this->connected = FALSE;
+		$this->connected = false;
 	}
 
 
 	/**
-	 * Returns TRUE when connection was established.
+	 * Returns true when connection was established.
 	 * @return bool
 	 */
 	final public function isConnected()
@@ -184,9 +183,9 @@ class Connection
 	 * @param  mixed  default value to use if key not found
 	 * @return mixed
 	 */
-	final public function getConfig($key = NULL, $default = NULL)
+	final public function getConfig($key = null, $default = null)
 	{
-		if ($key === NULL) {
+		if ($key === null) {
 			return $this->config;
 
 		} elseif (isset($this->config[$key])) {
@@ -253,7 +252,7 @@ class Connection
 		$args = func_get_args();
 		try {
 			Helpers::dump($this->translateArgs($args));
-			return TRUE;
+			return true;
 
 		} catch (Exception $e) {
 			if ($e->getSql()) {
@@ -261,7 +260,7 @@ class Connection
 			} else {
 				echo get_class($e) . ': ' . $e->getMessage() . (PHP_SAPI === 'cli' ? "\n" : '<br>');
 			}
-			return FALSE;
+			return false;
 		}
 	}
 
@@ -306,7 +305,7 @@ class Connection
 		$this->connected || $this->connect();
 
 		\dibi::$sql = $sql;
-		$event = $this->onEvent ? new Event($this, Event::QUERY, $sql) : NULL;
+		$event = $this->onEvent ? new Event($this, Event::QUERY, $sql) : null;
 		try {
 			$res = $this->driver->query($sql);
 
@@ -343,12 +342,11 @@ class Connection
 
 
 	/**
-	 * Gets the number of affected rows. Alias for getAffectedRows().
-	 * @return int  number of rows
-	 * @throws Exception
+	 * @deprecated
 	 */
 	public function affectedRows()
 	{
+		trigger_error(__METHOD__ . '() is deprecated, use getAffectedRows()', E_USER_DEPRECATED);
 		return $this->getAffectedRows();
 	}
 
@@ -359,25 +357,23 @@ class Connection
 	 * @return int
 	 * @throws Exception
 	 */
-	public function getInsertId($sequence = NULL)
+	public function getInsertId($sequence = null)
 	{
 		$this->connected || $this->connect();
 		$id = $this->driver->getInsertId($sequence);
 		if ($id < 1) {
 			throw new Exception('Cannot retrieve last generated ID.');
 		}
-		return (int) $id;
+		return Helpers::intVal($id);
 	}
 
 
 	/**
-	 * Retrieves the ID generated for an AUTO_INCREMENT column. Alias for getInsertId().
-	 * @param  string     optional sequence name
-	 * @return int
-	 * @throws Exception
+	 * @deprecated
 	 */
-	public function insertId($sequence = NULL)
+	public function insertId($sequence = null)
 	{
+		trigger_error(__METHOD__ . '() is deprecated, use getInsertId()', E_USER_DEPRECATED);
 		return $this->getInsertId($sequence);
 	}
 
@@ -387,10 +383,10 @@ class Connection
 	 * @param  string  optional savepoint name
 	 * @return void
 	 */
-	public function begin($savepoint = NULL)
+	public function begin($savepoint = null)
 	{
 		$this->connected || $this->connect();
-		$event = $this->onEvent ? new Event($this, Event::BEGIN, $savepoint) : NULL;
+		$event = $this->onEvent ? new Event($this, Event::BEGIN, $savepoint) : null;
 		try {
 			$this->driver->begin($savepoint);
 			$event && $this->onEvent($event->done());
@@ -407,10 +403,10 @@ class Connection
 	 * @param  string  optional savepoint name
 	 * @return void
 	 */
-	public function commit($savepoint = NULL)
+	public function commit($savepoint = null)
 	{
 		$this->connected || $this->connect();
-		$event = $this->onEvent ? new Event($this, Event::COMMIT, $savepoint) : NULL;
+		$event = $this->onEvent ? new Event($this, Event::COMMIT, $savepoint) : null;
 		try {
 			$this->driver->commit($savepoint);
 			$event && $this->onEvent($event->done());
@@ -427,10 +423,10 @@ class Connection
 	 * @param  string  optional savepoint name
 	 * @return void
 	 */
-	public function rollback($savepoint = NULL)
+	public function rollback($savepoint = null)
 	{
 		$this->connected || $this->connect();
-		$event = $this->onEvent ? new Event($this, Event::ROLLBACK, $savepoint) : NULL;
+		$event = $this->onEvent ? new Event($this, Event::ROLLBACK, $savepoint) : null;
 		try {
 			$this->driver->rollback($savepoint);
 			$event && $this->onEvent($event->done());
@@ -538,7 +534,7 @@ class Connection
 	 */
 	public function substitute($value)
 	{
-		return strpos($value, ':') === FALSE
+		return strpos($value, ':') === false
 			? $value
 			: preg_replace_callback('#:([^:\s]*):#', function ($m) { return $this->substitutes->{$m[1]}; }, $value);
 	}
@@ -550,7 +546,7 @@ class Connection
 	/**
 	 * Executes SQL query and fetch result - shortcut for query() & fetch().
 	 * @param  array|mixed    one or more arguments
-	 * @return Row|FALSE
+	 * @return Row|false
 	 * @throws Exception
 	 */
 	public function fetch($args)
@@ -617,7 +613,7 @@ class Connection
 	 * @param  callable  function (int $count, ?float $percent): void
 	 * @return int  count of sql commands
 	 */
-	public function loadFile($file, callable $onProgress = NULL)
+	public function loadFile($file, callable $onProgress = null)
 	{
 		return Helpers::loadFromFile($this, $file, $onProgress);
 	}
@@ -630,7 +626,7 @@ class Connection
 	public function getDatabaseInfo()
 	{
 		$this->connected || $this->connect();
-		return new Reflection\Database($this->driver->getReflector(), isset($this->config['database']) ? $this->config['database'] : NULL);
+		return new Reflection\Database($this->driver->getReflector(), isset($this->config['database']) ? $this->config['database'] : null);
 	}
 
 
@@ -658,5 +654,4 @@ class Connection
 			call_user_func($handler, $arg);
 		}
 	}
-
 }

src/Dibi/DataSource.php

@@ -10,7 +10,6 @@ namespace Dibi;
 
 /**
  * Default implementation of IDataSource for dibi.
- *
  */
 class DataSource implements IDataSource
 {
@@ -40,10 +39,10 @@ class DataSource implements IDataSource
 	/** @var array */
 	private $conds = [];
 
-	/** @var int|NULL */
+	/** @var int|null */
 	private $offset;
 
-	/** @var int|NULL */
+	/** @var int|null */
 	private $limit;
 
 
@@ -53,7 +52,7 @@ class DataSource implements IDataSource
 	 */
 	public function __construct($sql, Connection $connection)
 	{
-		if (strpbrk($sql, " \t\r\n") === FALSE) {
+		if (strpbrk($sql, " \t\r\n") === false) {
 			$this->sql = $connection->getDriver()->escapeIdentifier($sql); // table name
 		} else {
 			$this->sql = '(' . $sql . ') t'; // SQL command
@@ -68,14 +67,14 @@ class DataSource implements IDataSource
 	 * @param  string        column alias
 	 * @return self
 	 */
-	public function select($col, $as = NULL)
+	public function select($col, $as = null)
 	{
 		if (is_array($col)) {
 			$this->cols = $col;
 		} else {
 			$this->cols[$col] = $as;
 		}
-		$this->result = NULL;
+		$this->result = null;
 		return $this;
 	}
 
@@ -93,7 +92,7 @@ class DataSource implements IDataSource
 		} else {
 			$this->conds[] = func_get_args();
 		}
-		$this->result = $this->count = NULL;
+		$this->result = $this->count = null;
 		return $this;
 	}
 
@@ -111,22 +110,22 @@ class DataSource implements IDataSource
 		} else {
 			$this->sorting[$row] = $sorting;
 		}
-		$this->result = NULL;
+		$this->result = null;
 		return $this;
 	}
 
 
 	/**
 	 * Limits number of rows.
-	 * @param  int|NULL limit
+	 * @param  int|null limit
 	 * @param  int offset
 	 * @return self
 	 */
-	public function applyLimit($limit, $offset = NULL)
+	public function applyLimit($limit, $offset = null)
 	{
 		$this->limit = $limit;
 		$this->offset = $offset;
-		$this->result = $this->count = NULL;
+		$this->result = $this->count = null;
 		return $this;
 	}
 
@@ -150,7 +149,7 @@ class DataSource implements IDataSource
 	 */
 	public function getResult()
 	{
-		if ($this->result === NULL) {
+		if ($this->result === null) {
 			$this->result = $this->connection->nativeQuery($this->__toString());
 		}
 		return $this->result;
@@ -168,7 +167,7 @@ class DataSource implements IDataSource
 
 	/**
 	 * Generates, executes SQL query and fetches the single row.
-	 * @return Row|FALSE
+	 * @return Row|false
 	 */
 	public function fetch()
 	{
@@ -178,7 +177,7 @@ class DataSource implements IDataSource
 
 	/**
 	 * Like fetch(), but returns only first field.
-	 * @return mixed  value on success, FALSE if no next record
+	 * @return mixed  value on success, false if no next record
 	 */
 	public function fetchSingle()
 	{
@@ -213,7 +212,7 @@ class DataSource implements IDataSource
 	 * @param  string  value
 	 * @return array
 	 */
-	public function fetchPairs($key = NULL, $value = NULL)
+	public function fetchPairs($key = null, $value = null)
 	{
 		return $this->getResult()->fetchPairs($key, $value);
 	}
@@ -225,7 +224,7 @@ class DataSource implements IDataSource
 	 */
 	public function release()
 	{
-		$this->result = $this->count = $this->totalCount = NULL;
+		$this->result = $this->count = $this->totalCount = null;
 	}
 
 
@@ -262,12 +261,13 @@ class DataSource implements IDataSource
 			return $this->connection->translate('
 SELECT %n', (empty($this->cols) ? '*' : $this->cols), '
 FROM %SQL', $this->sql, '
-%ex', $this->conds ? ['WHERE %and', $this->conds] : NULL, '
-%ex', $this->sorting ? ['ORDER BY %by', $this->sorting] : NULL, '
+%ex', $this->conds ? ['WHERE %and', $this->conds] : null, '
+%ex', $this->sorting ? ['ORDER BY %by', $this->sorting] : null, '
 %ofs %lmt', $this->offset, $this->limit
 			);
 		} catch (\Exception $e) {
 			trigger_error($e->getMessage(), E_USER_ERROR);
+			return '';
 		}
 	}
 
@@ -281,11 +281,11 @@ FROM %SQL', $this->sql, '
 	 */
 	public function count()
 	{
-		if ($this->count === NULL) {
+		if ($this->count === null) {
 			$this->count = $this->conds || $this->offset || $this->limit
-				? (int) $this->connection->nativeQuery(
+				? Helpers::intVal($this->connection->nativeQuery(
 					'SELECT COUNT(*) FROM (' . $this->__toString() . ') t'
-				)->fetchSingle()
+				)->fetchSingle())
 				: $this->getTotalCount();
 		}
 		return $this->count;
@@ -298,12 +298,11 @@ FROM %SQL', $this->sql, '
 	 */
 	public function getTotalCount()
 	{
-		if ($this->totalCount === NULL) {
-			$this->totalCount = (int) $this->connection->nativeQuery(
+		if ($this->totalCount === null) {
+			$this->totalCount = Helpers::intVal($this->connection->nativeQuery(
 				'SELECT COUNT(*) FROM ' . $this->sql
-			)->fetchSingle();
+			)->fetchSingle());
 		}
 		return $this->totalCount;
 	}
-
 }

src/Dibi/DateTime.php

@@ -18,12 +18,12 @@ class DateTime extends \DateTime
 	/**
 	 * @param  string|int
 	 */
-	public function __construct($time = 'now', \DateTimeZone $timezone = NULL)
+	public function __construct($time = 'now', \DateTimeZone $timezone = null)
 	{
 		if (is_numeric($time)) {
 			parent::__construct('@' . $time);
 			$this->setTimeZone($timezone ? $timezone : new \DateTimeZone(date_default_timezone_get()));
-		} elseif ($timezone === NULL) {
+		} elseif ($timezone === null) {
 			parent::__construct($time);
 		} else {
 			parent::__construct($time, $timezone);
@@ -33,7 +33,7 @@ class DateTime extends \DateTime
 
 	public function modifyClone($modify = '')
 	{
-		$dolly = clone($this);
+		$dolly = clone $this;
 		return $modify ? $dolly->modify($modify) : $dolly;
 	}
 
@@ -71,5 +71,4 @@ class DateTime extends \DateTime
 			parent::__wakeup();
 		}
 	}
-
 }

src/Dibi/Drivers/FirebirdDriver.php

@@ -28,20 +28,20 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	const ERROR_EXCEPTION_THROWN = -836;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $connection;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $resultSet;
 
 	/** @var bool */
-	private $autoFree = TRUE;
+	private $autoFree = true;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $transaction;
 
 	/** @var bool */
-	private $inTransaction = FALSE;
+	private $inTransaction = false;
 
 
 	/**
@@ -103,7 +103,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Executes the SQL query.
 	 * @param  string      SQL statement.
-	 * @return Dibi\ResultDriver|NULL
+	 * @return Dibi\ResultDriver|null
 	 * @throws Dibi\DriverException|Dibi\Exception
 	 */
 	public function query($sql)
@@ -111,7 +111,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		$resource = $this->inTransaction ? $this->transaction : $this->connection;
 		$res = ibase_query($resource, $sql);
 
-		if ($res === FALSE) {
+		if ($res === false) {
 			if (ibase_errcode() == self::ERROR_EXCEPTION_THROWN) {
 				preg_match('/exception (\d+) (\w+) (.*)/i', ibase_errmsg(), $match);
 				throw new Dibi\ProcedureException($match[3], $match[1], $match[2], $sql);
@@ -123,13 +123,13 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		} elseif (is_resource($res)) {
 			return $this->createResultDriver($res);
 		}
-		return NULL;
+		return null;
 	}
 
 
 	/**
 	 * Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
-	 * @return int|FALSE  number of rows or FALSE on error
+	 * @return int|false  number of rows or false on error
 	 */
 	public function getAffectedRows()
 	{
@@ -140,7 +140,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
 	 * @param  string     generator name
-	 * @return int|FALSE  int on success or FALSE on failure
+	 * @return int|false  int on success or false on failure
 	 */
 	public function getInsertId($sequence)
 	{
@@ -154,13 +154,13 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function begin($savepoint = NULL)
+	public function begin($savepoint = null)
 	{
-		if ($savepoint !== NULL) {
+		if ($savepoint !== null) {
 			throw new Dibi\NotSupportedException('Savepoints are not supported in Firebird/Interbase.');
 		}
 		$this->transaction = ibase_trans($this->getResource());
-		$this->inTransaction = TRUE;
+		$this->inTransaction = true;
 	}
 
 
@@ -170,9 +170,9 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function commit($savepoint = NULL)
+	public function commit($savepoint = null)
 	{
-		if ($savepoint !== NULL) {
+		if ($savepoint !== null) {
 			throw new Dibi\NotSupportedException('Savepoints are not supported in Firebird/Interbase.');
 		}
 
@@ -180,7 +180,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 			throw new Dibi\DriverException('Unable to handle operation - failure when commiting transaction.');
 		}
 
-		$this->inTransaction = FALSE;
+		$this->inTransaction = false;
 	}
 
 
@@ -190,9 +190,9 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function rollback($savepoint = NULL)
+	public function rollback($savepoint = null)
 	{
-		if ($savepoint !== NULL) {
+		if ($savepoint !== null) {
 			throw new Dibi\NotSupportedException('Savepoints are not supported in Firebird/Interbase.');
 		}
 
@@ -200,7 +200,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 			throw new Dibi\DriverException('Unable to handle operation - failure when rolbacking transaction.');
 		}
 
-		$this->inTransaction = FALSE;
+		$this->inTransaction = false;
 	}
 
 
@@ -216,11 +216,11 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Returns the connection resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResource()
 	{
-		return is_resource($this->connection) ? $this->connection : NULL;
+		return is_resource($this->connection) ? $this->connection : null;
 	}
 
 
@@ -277,7 +277,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 */
 	public function escapeIdentifier($value)
 	{
-		return '"' . str_replace('"', '""', $value). '"';
+		return '"' . str_replace('"', '""', $value) . '"';
 	}
 
 
@@ -351,15 +351,17 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
-	 * @param  int|NULL
-	 * @param  int|NULL
+	 * @param  int|null
+	 * @param  int|null
 	 * @return void
 	 */
 	public function applyLimit(&$sql, $limit, $offset)
 	{
 		if ($limit > 0 || $offset > 0) {
 			// http://www.firebirdsql.org/refdocs/langrefupd20-select.html
-			$sql = 'SELECT ' . ($limit > 0 ? 'FIRST ' . (int) $limit : '') . ($offset > 0 ? ' SKIP ' . (int) $offset : '') . ' * FROM (' . $sql . ')';
+			$sql = 'SELECT ' . ($limit > 0 ? 'FIRST ' . Dibi\Helpers::intVal($limit) : '')
+				. ($offset > 0 ? ' SKIP ' . Dibi\Helpers::intVal($offset) : '')
+				. ' * FROM (' . $sql . ')';
 		}
 	}
 
@@ -389,7 +391,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Fetches the row at current position and moves the internal cursor to the next position.
-	 * @param  bool     TRUE for associative array, FALSE for numeric
+	 * @param  bool     true for associative array, false for numeric
 	 * @return array    array on success, nonarray if no next record
 	 */
 	public function fetch($assoc)
@@ -413,7 +415,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int   the 0-based cursor pos to seek to
-	 * @return bool  TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool  true on success, false if unable to seek to specified record
 	 * @throws Dibi\Exception
 	 */
 	public function seek($row)
@@ -429,18 +431,18 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	public function free()
 	{
 		ibase_free_result($this->resultSet);
-		$this->resultSet = NULL;
+		$this->resultSet = null;
 	}
 
 
 	/**
 	 * Returns the result set resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResultResource()
 	{
-		$this->autoFree = FALSE;
-		return is_resource($this->resultSet) ? $this->resultSet : NULL;
+		$this->autoFree = false;
+		return is_resource($this->resultSet) ? $this->resultSet : null;
 	}
 
 
@@ -481,7 +483,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 			WHERE RDB\$SYSTEM_FLAG = 0;"
 		);
 		$tables = [];
-		while ($row = $res->fetch(FALSE)) {
+		while ($row = $res->fetch(false)) {
 			$tables[] = [
 				'name' => $row[0],
 				'view' => $row[1] === 'TRUE',
@@ -530,7 +532,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 		);
 		$columns = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$key = $row['FIELD_NAME'];
 			$columns[$key] = [
 				'name' => $key,
@@ -539,7 +541,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 				'size' => $row['FIELD_LENGTH'],
 				'nullable' => $row['NULLABLE'] === 'TRUE',
 				'default' => $row['DEFAULT_VALUE'],
-				'autoincrement' => FALSE,
+				'autoincrement' => false,
 			];
 		}
 		return $columns;
@@ -568,7 +570,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 			ORDER BY s.RDB\$FIELD_POSITION"
 		);
 		$indexes = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$key = $row['INDEX_NAME'];
 			$indexes[$key]['name'] = $key;
 			$indexes[$key]['unique'] = $row['UNIQUE_FLAG'] === 1;
@@ -598,7 +600,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 			ORDER BY s.RDB\$FIELD_POSITION"
 		);
 		$keys = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$key = $row['INDEX_NAME'];
 			$keys[$key] = [
 				'name' => $key,
@@ -625,7 +627,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 				AND RDB\$FOREIGN_KEY IS NULL;"
 		);
 		$indices = [];
-		while ($row = $res->fetch(FALSE)) {
+		while ($row = $res->fetch(false)) {
 			$indices[] = $row[0];
 		}
 		return $indices;
@@ -649,7 +651,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 			);"
 		);
 		$constraints = [];
-		while ($row = $res->fetch(FALSE)) {
+		while ($row = $res->fetch(false)) {
 			$constraints[] = $row[0];
 		}
 		return $constraints;
@@ -663,7 +665,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @param  string
 	 * @return array
 	 */
-	public function getTriggersMeta($table = NULL)
+	public function getTriggersMeta($table = null)
 	{
 		$res = $this->query("
 			SELECT TRIM(RDB\$TRIGGER_NAME) AS TRIGGER_NAME,
@@ -689,10 +691,10 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 				END AS TRIGGER_ENABLED
 			FROM RDB\$TRIGGERS
 			WHERE RDB\$SYSTEM_FLAG = 0"
-			. ($table === NULL ? ';' : " AND RDB\$RELATION_NAME = UPPER('$table');")
+			. ($table === null ? ';' : " AND RDB\$RELATION_NAME = UPPER('$table');")
 		);
 		$triggers = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$triggers[$row['TRIGGER_NAME']] = [
 				'name' => $row['TRIGGER_NAME'],
 				'table' => $row['TABLE_NAME'],
@@ -711,16 +713,16 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @param  string
 	 * @return array
 	 */
-	public function getTriggers($table = NULL)
+	public function getTriggers($table = null)
 	{
-		$q = "SELECT TRIM(RDB\$TRIGGER_NAME)
-			FROM RDB\$TRIGGERS
-			WHERE RDB\$SYSTEM_FLAG = 0";
-		$q .= $table === NULL ? ';' : " AND RDB\$RELATION_NAME = UPPER('$table')";
+		$q = 'SELECT TRIM(RDB$TRIGGER_NAME)
+			FROM RDB$TRIGGERS
+			WHERE RDB$SYSTEM_FLAG = 0';
+		$q .= $table === null ? ';' : " AND RDB\$RELATION_NAME = UPPER('$table')";
 
 		$res = $this->query($q);
 		$triggers = [];
-		while ($row = $res->fetch(FALSE)) {
+		while ($row = $res->fetch(false)) {
 			$triggers[] = $row[0];
 		}
 		return $triggers;
@@ -767,7 +769,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 			ORDER BY p.RDB\$PARAMETER_TYPE, p.RDB\$PARAMETER_NUMBER;"
 		);
 		$procedures = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$key = $row['PROCEDURE_NAME'];
 			$io = trim($row['PARAMETER_TYPE']);
 			$num = $row['PARAMETER_NUMBER'];
@@ -786,12 +788,12 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 */
 	public function getProcedures()
 	{
-		$res = $this->query("
-			SELECT TRIM(RDB\$PROCEDURE_NAME)
-			FROM RDB\$PROCEDURES;"
+		$res = $this->query('
+			SELECT TRIM(RDB$PROCEDURE_NAME)
+			FROM RDB$PROCEDURES;'
 		);
 		$procedures = [];
-		while ($row = $res->fetch(FALSE)) {
+		while ($row = $res->fetch(false)) {
 			$procedures[] = $row[0];
 		}
 		return $procedures;
@@ -804,13 +806,13 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 */
 	public function getGenerators()
 	{
-		$res = $this->query("
-			SELECT TRIM(RDB\$GENERATOR_NAME)
-			FROM RDB\$GENERATORS
-			WHERE RDB\$SYSTEM_FLAG = 0;"
+		$res = $this->query('
+			SELECT TRIM(RDB$GENERATOR_NAME)
+			FROM RDB$GENERATORS
+			WHERE RDB$SYSTEM_FLAG = 0;'
 		);
 		$generators = [];
-		while ($row = $res->fetch(FALSE)) {
+		while ($row = $res->fetch(false)) {
 			$generators[] = $row[0];
 		}
 		return $generators;
@@ -823,16 +825,15 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 */
 	public function getFunctions()
 	{
-		$res = $this->query("
-			SELECT TRIM(RDB\$FUNCTION_NAME)
-			FROM RDB\$FUNCTIONS
-			WHERE RDB\$SYSTEM_FLAG = 0;"
+		$res = $this->query('
+			SELECT TRIM(RDB$FUNCTION_NAME)
+			FROM RDB$FUNCTIONS
+			WHERE RDB$SYSTEM_FLAG = 0;'
 		);
 		$functions = [];
-		while ($row = $res->fetch(FALSE)) {
+		while ($row = $res->fetch(false)) {
 			$functions[] = $row[0];
 		}
 		return $functions;
 	}
-
 }

src/Dibi/Drivers/MsSqlDriver.php

@@ -26,14 +26,14 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 {
 	use Dibi\Strict;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $connection;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $resultSet;
 
 	/** @var bool */
-	private $autoFree = TRUE;
+	private $autoFree = true;
 
 
 	/**
@@ -57,7 +57,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 		if (isset($config['resource'])) {
 			$this->connection = $config['resource'];
 		} elseif (empty($config['persistent'])) {
-			$this->connection = @mssql_connect($config['host'], $config['username'], $config['password'], TRUE); // intentionally @
+			$this->connection = @mssql_connect($config['host'], $config['username'], $config['password'], true); // intentionally @
 		} else {
 			$this->connection = @mssql_pconnect($config['host'], $config['username'], $config['password']); // intentionally @
 		}
@@ -85,26 +85,26 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Executes the SQL query.
 	 * @param  string      SQL statement.
-	 * @return Dibi\ResultDriver|NULL
+	 * @return Dibi\ResultDriver|null
 	 * @throws Dibi\DriverException
 	 */
 	public function query($sql)
 	{
 		$res = @mssql_query($sql, $this->connection); // intentionally @
 
-		if ($res === FALSE) {
+		if ($res === false) {
 			throw new Dibi\DriverException(mssql_get_last_message(), 0, $sql);
 
 		} elseif (is_resource($res)) {
 			return $this->createResultDriver($res);
 		}
-		return NULL;
+		return null;
 	}
 
 
 	/**
 	 * Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
-	 * @return int|FALSE  number of rows or FALSE on error
+	 * @return int|false  number of rows or false on error
 	 */
 	public function getAffectedRows()
 	{
@@ -114,7 +114,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
-	 * @return int|FALSE  int on success or FALSE on failure
+	 * @return int|false  int on success or false on failure
 	 */
 	public function getInsertId($sequence)
 	{
@@ -123,7 +123,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 			$row = mssql_fetch_row($res);
 			return $row[0];
 		}
-		return FALSE;
+		return false;
 	}
 
 
@@ -133,7 +133,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function begin($savepoint = NULL)
+	public function begin($savepoint = null)
 	{
 		$this->query('BEGIN TRANSACTION');
 	}
@@ -145,7 +145,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function commit($savepoint = NULL)
+	public function commit($savepoint = null)
 	{
 		$this->query('COMMIT');
 	}
@@ -157,7 +157,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function rollback($savepoint = NULL)
+	public function rollback($savepoint = null)
 	{
 		$this->query('ROLLBACK');
 	}
@@ -165,11 +165,11 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Returns the connection resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResource()
 	{
-		return is_resource($this->connection) ? $this->connection : NULL;
+		return is_resource($this->connection) ? $this->connection : null;
 	}
 
 
@@ -263,7 +263,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
 			$value = new Dibi\DateTime($value);
 		}
-		return $value->format("'Y-m-d H:i:s.u'");
+		return 'CONVERT(DATETIME2(7), ' . $value->format("'Y-m-d H:i:s.u'") . ')';
 	}
 
 
@@ -302,8 +302,8 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
-	 * @param  int|NULL
-	 * @param  int|NULL
+	 * @param  int|null
+	 * @param  int|null
 	 * @return void
 	 */
 	public function applyLimit(&$sql, $limit, $offset)
@@ -314,8 +314,8 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 		} elseif ($limit < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
 
-		} elseif ($limit !== NULL) {
-			$sql = 'SELECT TOP ' . (int) $limit . ' * FROM (' . $sql . ') t';
+		} elseif ($limit !== null) {
+			$sql = 'SELECT TOP ' . Dibi\Helpers::intVal($limit) . ' * FROM (' . $sql . ') t';
 		}
 	}
 
@@ -345,7 +345,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Fetches the row at current position and moves the internal cursor to the next position.
-	 * @param  bool     TRUE for associative array, FALSE for numeric
+	 * @param  bool     true for associative array, false for numeric
 	 * @return array    array on success, nonarray if no next record
 	 */
 	public function fetch($assoc)
@@ -357,7 +357,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int      the 0-based cursor pos to seek to
-	 * @return boolean  TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool     true on success, false if unable to seek to specified record
 	 */
 	public function seek($row)
 	{
@@ -372,7 +372,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	public function free()
 	{
 		mssql_free_result($this->resultSet);
-		$this->resultSet = NULL;
+		$this->resultSet = null;
 	}
 
 
@@ -399,12 +399,11 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Returns the result set resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResultResource()
 	{
-		$this->autoFree = FALSE;
-		return is_resource($this->resultSet) ? $this->resultSet : NULL;
+		$this->autoFree = false;
+		return is_resource($this->resultSet) ? $this->resultSet : null;
 	}
-
 }

src/Dibi/Drivers/MsSqlReflector.php

@@ -39,7 +39,7 @@ class MsSqlReflector implements Dibi\Reflector
 			FROM INFORMATION_SCHEMA.TABLES
 		');
 		$tables = [];
-		while ($row = $res->fetch(FALSE)) {
+		while ($row = $res->fetch(false)) {
 			$tables[] = [
 				'name' => $row[0],
 				'view' => isset($row[1]) && $row[1] === 'VIEW',
@@ -54,27 +54,27 @@ class MsSqlReflector implements Dibi\Reflector
 	 * @param  string
 	 * @return int
 	 */
-	public function getTableCount($table, $fallback = TRUE)
+	public function getTableCount($table, $fallback = true)
 	{
 		if (empty($table)) {
-			return FALSE;
+			return false;
 		}
 		$result = $this->driver->query("
 			SELECT MAX(rowcnt)
 			FROM sys.sysindexes
 			WHERE id=OBJECT_ID({$this->driver->escapeIdentifier($table)})
 		");
-		$row = $result->fetch(FALSE);
+		$row = $result->fetch(false);
 
 		if (!is_array($row) || count($row) < 1) {
 			if ($fallback) {
-				$row = $this->driver->query("SELECT COUNT(*) FROM {$this->driver->escapeIdentifier($table)}")->fetch(FALSE);
-				$count = intval($row[0]);
+				$row = $this->driver->query("SELECT COUNT(*) FROM {$this->driver->escapeIdentifier($table)}")->fetch(false);
+				$count = Dibi\Helpers::intVal($row[0]);
 			} else {
-				$count = FALSE;
+				$count = false;
 			}
 		} else {
-			$count = intval($row[0]);
+			$count = Dibi\Helpers::intVal($row[0]);
 		}
 
 		return $count;
@@ -95,8 +95,8 @@ class MsSqlReflector implements Dibi\Reflector
 			ORDER BY TABLE_NAME, ORDINAL_POSITION
 		");
 		$columns = [];
-		while ($row = $res->fetch(TRUE)) {
-			$size = FALSE;
+		while ($row = $res->fetch(true)) {
+			$size = false;
 			$type = strtoupper($row['DATA_TYPE']);
 
 			$size_cols = [
@@ -119,10 +119,10 @@ class MsSqlReflector implements Dibi\Reflector
 				'table' => $table,
 				'nativetype' => $type,
 				'size' => $size,
-				'unsigned' => NULL,
+				'unsigned' => null,
 				'nullable' => $row['IS_NULLABLE'] === 'YES',
 				'default' => $row['COLUMN_DEFAULT'],
-				'autoincrement' => FALSE,
+				'autoincrement' => false,
 				'vendor' => $row,
 			];
 		}
@@ -155,7 +155,7 @@ class MsSqlReflector implements Dibi\Reflector
 		");
 
 		$indexes = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$index_name = $row['index_name'];
 
 			if (!isset($indexes[$index_name])) {
@@ -195,7 +195,7 @@ class MsSqlReflector implements Dibi\Reflector
 		");
 
 		$keys = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$key_name = $row['foreign_key'];
 
 			if (!isset($keys[$key_name])) {
@@ -203,8 +203,8 @@ class MsSqlReflector implements Dibi\Reflector
 				$keys[$key_name]['local'] = [$row['column_name']]; // local columns
 				$keys[$key_name]['table'] = $row['reference_table_name']; // referenced table
 				$keys[$key_name]['foreign'] = [$row['reference_column_name']]; // referenced columns
-				$keys[$key_name]['onDelete'] = FALSE;
-				$keys[$key_name]['onUpdate'] = FALSE;
+				$keys[$key_name]['onDelete'] = false;
+				$keys[$key_name]['onUpdate'] = false;
 			} else {
 				$keys[$key_name]['local'][] = $row['column_name']; // local columns
 				$keys[$key_name]['foreign'][] = $row['reference_column_name']; // referenced columns
@@ -212,5 +212,4 @@ class MsSqlReflector implements Dibi\Reflector
 		}
 		return array_values($keys);
 	}
-
 }

src/Dibi/Drivers/MySqlDriver.php

@@ -33,17 +33,19 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	use Dibi\Strict;
 
 	const ERROR_ACCESS_DENIED = 1045;
+
 	const ERROR_DUPLICATE_ENTRY = 1062;
+
 	const ERROR_DATA_TRUNCATED = 1265;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $connection;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $resultSet;
 
 	/** @var bool */
-	private $autoFree = TRUE;
+	private $autoFree = true;
 
 	/** @var bool  Is buffered (seekable and countable)? */
 	private $buffered;
@@ -88,7 +90,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 					if (!isset($config['socket'])) {
 						$config['socket'] = ini_get('mysql.default_socket');
 					}
-					$config['host'] = NULL;
+					$config['host'] = null;
 				}
 			}
 
@@ -99,7 +101,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 			}
 
 			if (empty($config['persistent'])) {
-				$this->connection = @mysql_connect($host, $config['username'], $config['password'], TRUE, $config['flags']); // intentionally @
+				$this->connection = @mysql_connect($host, $config['username'], $config['password'], true, $config['flags']); // intentionally @
 			} else {
 				$this->connection = @mysql_pconnect($host, $config['username'], $config['password'], $config['flags']); // intentionally @
 			}
@@ -146,7 +148,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Executes the SQL query.
 	 * @param  string      SQL statement.
-	 * @return Dibi\ResultDriver|NULL
+	 * @return Dibi\ResultDriver|null
 	 * @throws Dibi\DriverException
 	 */
 	public function query($sql)
@@ -187,7 +189,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
-	 * @return int|FALSE  number of rows or FALSE on error
+	 * @return int|false  number of rows or false on error
 	 */
 	public function getAffectedRows()
 	{
@@ -197,7 +199,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
-	 * @return int|FALSE  int on success or FALSE on failure
+	 * @return int|false  int on success or false on failure
 	 */
 	public function getInsertId($sequence)
 	{
@@ -211,7 +213,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function begin($savepoint = NULL)
+	public function begin($savepoint = null)
 	{
 		$this->query($savepoint ? "SAVEPOINT $savepoint" : 'START TRANSACTION');
 	}
@@ -223,7 +225,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function commit($savepoint = NULL)
+	public function commit($savepoint = null)
 	{
 		$this->query($savepoint ? "RELEASE SAVEPOINT $savepoint" : 'COMMIT');
 	}
@@ -235,7 +237,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function rollback($savepoint = NULL)
+	public function rollback($savepoint = null)
 	{
 		$this->query($savepoint ? "ROLLBACK TO SAVEPOINT $savepoint" : 'ROLLBACK');
 	}
@@ -243,11 +245,11 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Returns the connection resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResource()
 	{
-		return is_resource($this->connection) ? $this->connection : NULL;
+		return is_resource($this->connection) ? $this->connection : null;
 	}
 
 
@@ -386,8 +388,8 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
-	 * @param  int|NULL
-	 * @param  int|NULL
+	 * @param  int|null
+	 * @param  int|null
 	 * @return void
 	 */
 	public function applyLimit(&$sql, $limit, $offset)
@@ -395,10 +397,10 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 		if ($limit < 0 || $offset < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
 
-		} elseif ($limit !== NULL || $offset) {
+		} elseif ($limit !== null || $offset) {
 			// see http://dev.mysql.com/doc/refman/5.0/en/select.html
-			$sql .= ' LIMIT ' . ($limit === NULL ? '18446744073709551615' : (int) $limit)
-				. ($offset ? ' OFFSET ' . (int) $offset : '');
+			$sql .= ' LIMIT ' . ($limit === null ? '18446744073709551615' : Dibi\Helpers::intVal($limit))
+				. ($offset ? ' OFFSET ' . Dibi\Helpers::intVal($offset) : '');
 		}
 	}
 
@@ -431,7 +433,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Fetches the row at current position and moves the internal cursor to the next position.
-	 * @param  bool     TRUE for associative array, FALSE for numeric
+	 * @param  bool     true for associative array, false for numeric
 	 * @return array    array on success, nonarray if no next record
 	 */
 	public function fetch($assoc)
@@ -443,7 +445,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int   the 0-based cursor pos to seek to
-	 * @return bool  TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool  true on success, false if unable to seek to specified record
 	 * @throws Dibi\Exception
 	 */
 	public function seek($row)
@@ -463,7 +465,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	public function free()
 	{
 		mysql_free_result($this->resultSet);
-		$this->resultSet = NULL;
+		$this->resultSet = null;
 	}
 
 
@@ -482,7 +484,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 				'table' => $row['table'],
 				'fullname' => $row['table'] ? $row['table'] . '.' . $row['name'] : $row['name'],
 				'nativetype' => strtoupper($row['type']),
-				'type' => $row['type'] === 'time' ? Dibi\Type::TIME_INTERVAL : NULL,
+				'type' => $row['type'] === 'time' ? Dibi\Type::TIME_INTERVAL : null,
 				'vendor' => $row,
 			];
 		}
@@ -492,12 +494,11 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Returns the result set resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResultResource()
 	{
-		$this->autoFree = FALSE;
-		return is_resource($this->resultSet) ? $this->resultSet : NULL;
+		$this->autoFree = false;
+		return is_resource($this->resultSet) ? $this->resultSet : null;
 	}
-
 }

src/Dibi/Drivers/MySqlReflector.php

@@ -36,7 +36,7 @@ class MySqlReflector implements Dibi\Reflector
 	{
 		$res = $this->driver->query('SHOW FULL TABLES');
 		$tables = [];
-		while ($row = $res->fetch(FALSE)) {
+		while ($row = $res->fetch(false)) {
 			$tables[] = [
 				'name' => $row[0],
 				'view' => isset($row[1]) && $row[1] === 'VIEW',
@@ -55,13 +55,13 @@ class MySqlReflector implements Dibi\Reflector
 	{
 		$res = $this->driver->query("SHOW FULL COLUMNS FROM {$this->driver->escapeIdentifier($table)}");
 		$columns = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$type = explode('(', $row['Type']);
 			$columns[] = [
 				'name' => $row['Field'],
 				'table' => $table,
 				'nativetype' => strtoupper($type[0]),
-				'size' => isset($type[1]) ? (int) $type[1] : NULL,
+				'size' => isset($type[1]) ? (int) $type[1] : null,
 				'unsigned' => (bool) strstr($row['Type'], 'unsigned'),
 				'nullable' => $row['Null'] === 'YES',
 				'default' => $row['Default'],
@@ -82,7 +82,7 @@ class MySqlReflector implements Dibi\Reflector
 	{
 		$res = $this->driver->query("SHOW INDEX FROM {$this->driver->escapeIdentifier($table)}");
 		$indexes = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$indexes[$row['Key_name']]['name'] = $row['Key_name'];
 			$indexes[$row['Key_name']]['unique'] = !$row['Non_unique'];
 			$indexes[$row['Key_name']]['primary'] = $row['Key_name'] === 'PRIMARY';
@@ -100,7 +100,7 @@ class MySqlReflector implements Dibi\Reflector
 	 */
 	public function getForeignKeys($table)
 	{
-		$data = $this->driver->query("SELECT `ENGINE` FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = {$this->driver->escapeText($table)}")->fetch(TRUE);
+		$data = $this->driver->query("SELECT `ENGINE` FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = {$this->driver->escapeText($table)}")->fetch(true);
 		if ($data['ENGINE'] !== 'InnoDB') {
 			throw new Dibi\NotSupportedException("Foreign keys are not supported in {$data['ENGINE']} tables.");
 		}
@@ -119,7 +119,7 @@ class MySqlReflector implements Dibi\Reflector
 		");
 
 		$foreignKeys = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$keyName = $row['CONSTRAINT_NAME'];
 
 			$foreignKeys[$keyName]['name'] = $keyName;
@@ -131,5 +131,4 @@ class MySqlReflector implements Dibi\Reflector
 		}
 		return array_values($foreignKeys);
 	}
-
 }

src/Dibi/Drivers/MySqliDriver.php

@@ -34,17 +34,19 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	use Dibi\Strict;
 
 	const ERROR_ACCESS_DENIED = 1045;
+
 	const ERROR_DUPLICATE_ENTRY = 1062;
+
 	const ERROR_DATA_TRUNCATED = 1265;
 
-	/** @var \mysqli|NULL */
+	/** @var \mysqli|null */
 	private $connection;
 
-	/** @var \mysqli_result|NULL */
+	/** @var \mysqli_result|null */
 	private $resultSet;
 
 	/** @var bool */
-	private $autoFree = TRUE;
+	private $autoFree = true;
 
 	/** @var bool  Is buffered (seekable and countable)? */
 	private $buffered;
@@ -80,7 +82,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 				'username' => ini_get('mysqli.default_user'),
 				'password' => ini_get('mysqli.default_pw'),
 				'socket' => (string) ini_get('mysqli.default_socket'),
-				'port' => NULL,
+				'port' => null,
 			];
 			if (!isset($config['host'])) {
 				$host = ini_get('mysqli.default_host');
@@ -88,8 +90,8 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 					$config['host'] = $host;
 					$config['port'] = ini_get('mysqli.default_port');
 				} else {
-					$config['host'] = NULL;
-					$config['port'] = NULL;
+					$config['host'] = null;
+					$config['port'] = null;
 				}
 			}
 
@@ -98,13 +100,8 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 
 			$this->connection = mysqli_init();
 			if (isset($config['options'])) {
-				if (is_scalar($config['options'])) {
-					$config['flags'] = $config['options']; // back compatibility
-					trigger_error(__CLASS__ . ": configuration item 'options' must be array; for constants MYSQLI_CLIENT_* use 'flags'.", E_USER_NOTICE);
-				} else {
-					foreach ((array) $config['options'] as $key => $value) {
-						mysqli_options($this->connection, $key, $value);
-					}
+				foreach ($config['options'] as $key => $value) {
+					mysqli_options($this->connection, $key, $value);
 				}
 			}
 			@mysqli_real_connect($this->connection, (empty($config['persistent']) ? '' : 'p:') . $config['host'], $config['username'], $config['password'], $config['database'], $config['port'], $config['socket'], $config['flags']); // intentionally @
@@ -145,7 +142,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Executes the SQL query.
 	 * @param  string      SQL statement.
-	 * @return Dibi\ResultDriver|NULL
+	 * @return Dibi\ResultDriver|null
 	 * @throws Dibi\DriverException
 	 */
 	public function query($sql)
@@ -153,12 +150,12 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 		$res = @mysqli_query($this->connection, $sql, $this->buffered ? MYSQLI_STORE_RESULT : MYSQLI_USE_RESULT); // intentionally @
 
 		if ($code = mysqli_errno($this->connection)) {
-			throw self::createException(mysqli_error($this->connection), $code, $sql);
+			throw static::createException(mysqli_error($this->connection), $code, $sql);
 
 		} elseif (is_object($res)) {
 			return $this->createResultDriver($res);
 		}
-		return NULL;
+		return null;
 	}
 
 
@@ -167,13 +164,13 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	 */
 	public static function createException($message, $code, $sql)
 	{
-		if (in_array($code, [1216, 1217, 1451, 1452, 1701], TRUE)) {
+		if (in_array($code, [1216, 1217, 1451, 1452, 1701], true)) {
 			return new Dibi\ForeignKeyConstraintViolationException($message, $code, $sql);
 
-		} elseif (in_array($code, [1062, 1557, 1569, 1586], TRUE)) {
+		} elseif (in_array($code, [1062, 1557, 1569, 1586], true)) {
 			return new Dibi\UniqueConstraintViolationException($message, $code, $sql);
 
-		} elseif (in_array($code, [1048, 1121, 1138, 1171, 1252, 1263, 1566], TRUE)) {
+		} elseif (in_array($code, [1048, 1121, 1138, 1171, 1252, 1263, 1566], true)) {
 			return new Dibi\NotNullConstraintViolationException($message, $code, $sql);
 
 		} else {
@@ -203,17 +200,17 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
-	 * @return int|FALSE  number of rows or FALSE on error
+	 * @return int|false  number of rows or false on error
 	 */
 	public function getAffectedRows()
 	{
-		return mysqli_affected_rows($this->connection) === -1 ? FALSE : mysqli_affected_rows($this->connection);
+		return mysqli_affected_rows($this->connection) === -1 ? false : mysqli_affected_rows($this->connection);
 	}
 
 
 	/**
 	 * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
-	 * @return int|FALSE  int on success or FALSE on failure
+	 * @return int|false  int on success or false on failure
 	 */
 	public function getInsertId($sequence)
 	{
@@ -227,7 +224,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function begin($savepoint = NULL)
+	public function begin($savepoint = null)
 	{
 		$this->query($savepoint ? "SAVEPOINT $savepoint" : 'START TRANSACTION');
 	}
@@ -239,7 +236,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function commit($savepoint = NULL)
+	public function commit($savepoint = null)
 	{
 		$this->query($savepoint ? "RELEASE SAVEPOINT $savepoint" : 'COMMIT');
 	}
@@ -251,7 +248,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function rollback($savepoint = NULL)
+	public function rollback($savepoint = null)
 	{
 		$this->query($savepoint ? "ROLLBACK TO SAVEPOINT $savepoint" : 'ROLLBACK');
 	}
@@ -263,7 +260,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	 */
 	public function getResource()
 	{
-		return @$this->connection->thread_id ? $this->connection : NULL;
+		return @$this->connection->thread_id ? $this->connection : null;
 	}
 
 
@@ -394,8 +391,8 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
-	 * @param  int|NULL
-	 * @param  int|NULL
+	 * @param  int|null
+	 * @param  int|null
 	 * @return void
 	 */
 	public function applyLimit(&$sql, $limit, $offset)
@@ -403,10 +400,10 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 		if ($limit < 0 || $offset < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
 
-		} elseif ($limit !== NULL || $offset) {
+		} elseif ($limit !== null || $offset) {
 			// see http://dev.mysql.com/doc/refman/5.0/en/select.html
-			$sql .= ' LIMIT ' . ($limit === NULL ? '18446744073709551615' : (int) $limit)
-				. ($offset ? ' OFFSET ' . (int) $offset : '');
+			$sql .= ' LIMIT ' . ($limit === null ? '18446744073709551615' : Dibi\Helpers::intVal($limit))
+				. ($offset ? ' OFFSET ' . Dibi\Helpers::intVal($offset) : '');
 		}
 	}
 
@@ -439,7 +436,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Fetches the row at current position and moves the internal cursor to the next position.
-	 * @param  bool     TRUE for associative array, FALSE for numeric
+	 * @param  bool     true for associative array, false for numeric
 	 * @return array    array on success, nonarray if no next record
 	 */
 	public function fetch($assoc)
@@ -451,7 +448,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int   the 0-based cursor pos to seek to
-	 * @return bool  TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool  true on success, false if unable to seek to specified record
 	 * @throws Dibi\Exception
 	 */
 	public function seek($row)
@@ -470,7 +467,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	public function free()
 	{
 		mysqli_free_result($this->resultSet);
-		$this->resultSet = NULL;
+		$this->resultSet = null;
 	}
 
 
@@ -481,8 +478,8 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	public function getResultColumns()
 	{
 		static $types;
-		if ($types === NULL) {
-			$consts = get_defined_constants(TRUE);
+		if ($types === null) {
+			$consts = get_defined_constants(true);
 			$types = [];
 			foreach (isset($consts['mysqli']) ? $consts['mysqli'] : [] as $key => $value) {
 				if (strncmp($key, 'MYSQLI_TYPE_', 12) === 0) {
@@ -501,7 +498,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 				'table' => $row['orgtable'],
 				'fullname' => $row['table'] ? $row['table'] . '.' . $row['name'] : $row['name'],
 				'nativetype' => isset($types[$row['type']]) ? $types[$row['type']] : $row['type'],
-				'type' => $row['type'] === MYSQLI_TYPE_TIME ? Dibi\Type::TIME_INTERVAL : NULL,
+				'type' => $row['type'] === MYSQLI_TYPE_TIME ? Dibi\Type::TIME_INTERVAL : null,
 				'vendor' => $row,
 			];
 		}
@@ -511,12 +508,11 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Returns the result set resource.
-	 * @return \mysqli_result|NULL
+	 * @return \mysqli_result|null
 	 */
 	public function getResultResource()
 	{
-		$this->autoFree = FALSE;
+		$this->autoFree = false;
 		return $this->resultSet;
 	}
-
 }

src/Dibi/Drivers/OdbcDriver.php

@@ -25,17 +25,17 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 {
 	use Dibi\Strict;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $connection;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $resultSet;
 
 	/** @var bool */
-	private $autoFree = TRUE;
+	private $autoFree = true;
 
-	/** @var int|FALSE  Affected rows */
-	private $affectedRows = FALSE;
+	/** @var int|false  Affected rows */
+	private $affectedRows = false;
 
 	/** @var int  Cursor */
 	private $row = 0;
@@ -95,28 +95,28 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Executes the SQL query.
 	 * @param  string      SQL statement.
-	 * @return Dibi\ResultDriver|NULL
+	 * @return Dibi\ResultDriver|null
 	 * @throws Dibi\DriverException
 	 */
 	public function query($sql)
 	{
-		$this->affectedRows = FALSE;
+		$this->affectedRows = false;
 		$res = @odbc_exec($this->connection, $sql); // intentionally @
 
-		if ($res === FALSE) {
+		if ($res === false) {
 			throw new Dibi\DriverException(odbc_errormsg($this->connection) . ' ' . odbc_error($this->connection), 0, $sql);
 
 		} elseif (is_resource($res)) {
 			$this->affectedRows = odbc_num_rows($res);
-			return $this->createResultDriver($res);
+			return odbc_num_fields($res) ? $this->createResultDriver($res) : null;
 		}
-		return NULL;
+		return null;
 	}
 
 
 	/**
 	 * Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
-	 * @return int|FALSE  number of rows or FALSE on error
+	 * @return int|false  number of rows or false on error
 	 */
 	public function getAffectedRows()
 	{
@@ -126,7 +126,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
-	 * @return int|FALSE  int on success or FALSE on failure
+	 * @return int|false  int on success or false on failure
 	 */
 	public function getInsertId($sequence)
 	{
@@ -140,9 +140,9 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function begin($savepoint = NULL)
+	public function begin($savepoint = null)
 	{
-		if (!odbc_autocommit($this->connection, FALSE)) {
+		if (!odbc_autocommit($this->connection, false)) {
 			throw new Dibi\DriverException(odbc_errormsg($this->connection) . ' ' . odbc_error($this->connection));
 		}
 	}
@@ -154,12 +154,12 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function commit($savepoint = NULL)
+	public function commit($savepoint = null)
 	{
 		if (!odbc_commit($this->connection)) {
 			throw new Dibi\DriverException(odbc_errormsg($this->connection) . ' ' . odbc_error($this->connection));
 		}
-		odbc_autocommit($this->connection, TRUE);
+		odbc_autocommit($this->connection, true);
 	}
 
 
@@ -169,12 +169,12 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function rollback($savepoint = NULL)
+	public function rollback($savepoint = null)
 	{
 		if (!odbc_rollback($this->connection)) {
 			throw new Dibi\DriverException(odbc_errormsg($this->connection) . ' ' . odbc_error($this->connection));
 		}
-		odbc_autocommit($this->connection, TRUE);
+		odbc_autocommit($this->connection, true);
 	}
 
 
@@ -190,11 +190,11 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Returns the connection resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResource()
 	{
-		return is_resource($this->connection) ? $this->connection : NULL;
+		return is_resource($this->connection) ? $this->connection : null;
 	}
 
 
@@ -274,7 +274,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
 			$value = new Dibi\DateTime($value);
 		}
-		return $value->format("#m/d/Y#");
+		return $value->format('#m/d/Y#');
 	}
 
 
@@ -287,7 +287,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
 			$value = new Dibi\DateTime($value);
 		}
-		return $value->format("#m/d/Y H:i:s.u#");
+		return $value->format('#m/d/Y H:i:s.u#');
 	}
 
 
@@ -326,8 +326,8 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
-	 * @param  int|NULL
-	 * @param  int|NULL
+	 * @param  int|null
+	 * @param  int|null
 	 * @return void
 	 */
 	public function applyLimit(&$sql, $limit, $offset)
@@ -338,8 +338,8 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		} elseif ($limit < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
 
-		} elseif ($limit !== NULL) {
-			$sql = 'SELECT TOP ' . (int) $limit . ' * FROM (' . $sql . ') t';
+		} elseif ($limit !== null) {
+			$sql = 'SELECT TOP ' . Dibi\Helpers::intVal($limit) . ' * FROM (' . $sql . ') t';
 		}
 	}
 
@@ -370,7 +370,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Fetches the row at current position and moves the internal cursor to the next position.
-	 * @param  bool     TRUE for associative array, FALSE for numeric
+	 * @param  bool     true for associative array, false for numeric
 	 * @return array    array on success, nonarray if no next record
 	 */
 	public function fetch($assoc)
@@ -380,7 +380,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		} else {
 			$set = $this->resultSet;
 			if (!odbc_fetch_row($set, ++$this->row)) {
-				return FALSE;
+				return false;
 			}
 			$count = odbc_num_fields($set);
 			$cols = [];
@@ -395,12 +395,12 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int   the 0-based cursor pos to seek to
-	 * @return bool  TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool  true on success, false if unable to seek to specified record
 	 */
 	public function seek($row)
 	{
 		$this->row = $row;
-		return TRUE;
+		return true;
 	}
 
 
@@ -411,7 +411,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	public function free()
 	{
 		odbc_free_result($this->resultSet);
-		$this->resultSet = NULL;
+		$this->resultSet = null;
 	}
 
 
@@ -426,7 +426,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		for ($i = 1; $i <= $count; $i++) {
 			$columns[] = [
 				'name' => odbc_field_name($this->resultSet, $i),
-				'table' => NULL,
+				'table' => null,
 				'fullname' => odbc_field_name($this->resultSet, $i),
 				'nativetype' => odbc_field_type($this->resultSet, $i),
 			];
@@ -437,12 +437,12 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Returns the result set resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResultResource()
 	{
-		$this->autoFree = FALSE;
-		return is_resource($this->resultSet) ? $this->resultSet : NULL;
+		$this->autoFree = false;
+		return is_resource($this->resultSet) ? $this->resultSet : null;
 	}
 
 
@@ -516,5 +516,4 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	{
 		throw new Dibi\NotImplementedException;
 	}
-
 }

src/Dibi/Drivers/OracleDriver.php

@@ -19,7 +19,7 @@ use Dibi;
  *   - password (or pass)
  *   - charset => character encoding to set
  *   - schema => alters session schema
- *   - nativeDate => use native date format (defaults to FALSE)
+ *   - nativeDate => use native date format (defaults to false)
  *   - resource (resource) => existing connection resource
  *   - persistent => Creates persistent connections with oci_pconnect instead of oci_new_connect
  *   - lazy, profiler, result, substitutes, ... => see Dibi\Connection options
@@ -28,23 +28,25 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 {
 	use Dibi\Strict;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $connection;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $resultSet;
 
 	/** @var bool */
-	private $autoFree = TRUE;
+	private $autoFree = true;
 
 	/** @var bool */
-	private $autocommit = TRUE;
+	private $autocommit = true;
 
 	/** @var string  Date and datetime format */
-	private $fmtDate, $fmtDateTime;
+	private $fmtDate;
 
-	/** @var int|FALSE Number of affected rows */
-	private $affectedRows = FALSE;
+	private $fmtDateTime;
+
+	/** @var int|false Number of affected rows */
+	private $affectedRows = false;
 
 
 	/**
@@ -107,28 +109,28 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Executes the SQL query.
 	 * @param  string      SQL statement.
-	 * @return Dibi\ResultDriver|NULL
+	 * @return Dibi\ResultDriver|null
 	 * @throws Dibi\DriverException
 	 */
 	public function query($sql)
 	{
-		$this->affectedRows = FALSE;
+		$this->affectedRows = false;
 		$res = oci_parse($this->connection, $sql);
 		if ($res) {
 			@oci_execute($res, $this->autocommit ? OCI_COMMIT_ON_SUCCESS : OCI_DEFAULT);
 			$err = oci_error($res);
 			if ($err) {
-				throw self::createException($err['message'], $err['code'], $sql);
+				throw static::createException($err['message'], $err['code'], $sql);
 
 			} elseif (is_resource($res)) {
 				$this->affectedRows = oci_num_rows($res);
-				return $this->createResultDriver($res);
+				return oci_num_fields($res) ? $this->createResultDriver($res) : null;
 			}
 		} else {
 			$err = oci_error($this->connection);
 			throw new Dibi\DriverException($err['message'], $err['code'], $sql);
 		}
-		return NULL;
+		return null;
 	}
 
 
@@ -137,13 +139,13 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 */
 	public static function createException($message, $code, $sql)
 	{
-		if (in_array($code, [1, 2299, 38911], TRUE)) {
+		if (in_array($code, [1, 2299, 38911], true)) {
 			return new Dibi\UniqueConstraintViolationException($message, $code, $sql);
 
-		} elseif (in_array($code, [1400], TRUE)) {
+		} elseif (in_array($code, [1400], true)) {
 			return new Dibi\NotNullConstraintViolationException($message, $code, $sql);
 
-		} elseif (in_array($code, [2266, 2291, 2292], TRUE)) {
+		} elseif (in_array($code, [2266, 2291, 2292], true)) {
 			return new Dibi\ForeignKeyConstraintViolationException($message, $code, $sql);
 
 		} else {
@@ -154,7 +156,7 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
-	 * @return int|FALSE  number of rows or FALSE on error
+	 * @return int|false  number of rows or false on error
 	 */
 	public function getAffectedRows()
 	{
@@ -164,12 +166,12 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
-	 * @return int|FALSE  int on success or FALSE on failure
+	 * @return int|false  int on success or false on failure
 	 */
 	public function getInsertId($sequence)
 	{
-		$row = $this->query("SELECT $sequence.CURRVAL AS ID FROM DUAL")->fetch(TRUE);
-		return isset($row['ID']) ? (int) $row['ID'] : FALSE;
+		$row = $this->query("SELECT $sequence.CURRVAL AS ID FROM DUAL")->fetch(true);
+		return isset($row['ID']) ? Dibi\Helpers::intVal($row['ID']) : false;
 	}
 
 
@@ -178,9 +180,9 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @param  string  optional savepoint name
 	 * @return void
 	 */
-	public function begin($savepoint = NULL)
+	public function begin($savepoint = null)
 	{
-		$this->autocommit = FALSE;
+		$this->autocommit = false;
 	}
 
 
@@ -190,13 +192,13 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function commit($savepoint = NULL)
+	public function commit($savepoint = null)
 	{
 		if (!oci_commit($this->connection)) {
 			$err = oci_error($this->connection);
 			throw new Dibi\DriverException($err['message'], $err['code']);
 		}
-		$this->autocommit = TRUE;
+		$this->autocommit = true;
 	}
 
 
@@ -206,23 +208,23 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function rollback($savepoint = NULL)
+	public function rollback($savepoint = null)
 	{
 		if (!oci_rollback($this->connection)) {
 			$err = oci_error($this->connection);
 			throw new Dibi\DriverException($err['message'], $err['code']);
 		}
-		$this->autocommit = TRUE;
+		$this->autocommit = true;
 	}
 
 
 	/**
 	 * Returns the connection resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResource()
 	{
-		return is_resource($this->connection) ? $this->connection : NULL;
+		return is_resource($this->connection) ? $this->connection : null;
 	}
 
 
@@ -360,8 +362,8 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
-	 * @param  int|NULL
-	 * @param  int|NULL
+	 * @param  int|null
+	 * @param  int|null
 	 * @return void
 	 */
 	public function applyLimit(&$sql, $limit, $offset)
@@ -372,11 +374,11 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		} elseif ($offset) {
 			// see http://www.oracle.com/technology/oramag/oracle/06-sep/o56asktom.html
 			$sql = 'SELECT * FROM (SELECT t.*, ROWNUM AS "__rnum" FROM (' . $sql . ') t '
-				. ($limit !== NULL ? 'WHERE ROWNUM <= ' . ((int) $offset + (int) $limit) : '')
-				. ') WHERE "__rnum" > '. (int) $offset;
+				. ($limit !== null ? 'WHERE ROWNUM <= ' . ((int) $offset + (int) $limit) : '')
+				. ') WHERE "__rnum" > ' . $offset;
 
-		} elseif ($limit !== NULL) {
-			$sql = 'SELECT * FROM (' . $sql . ') WHERE ROWNUM <= ' . (int) $limit;
+		} elseif ($limit !== null) {
+			$sql = 'SELECT * FROM (' . $sql . ') WHERE ROWNUM <= ' . Dibi\Helpers::intVal($limit);
 		}
 	}
 
@@ -406,7 +408,7 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Fetches the row at current position and moves the internal cursor to the next position.
-	 * @param  bool     TRUE for associative array, FALSE for numeric
+	 * @param  bool     true for associative array, false for numeric
 	 * @return array    array on success, nonarray if no next record
 	 */
 	public function fetch($assoc)
@@ -418,7 +420,7 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int   the 0-based cursor pos to seek to
-	 * @return bool  TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool  true on success, false if unable to seek to specified record
 	 */
 	public function seek($row)
 	{
@@ -433,7 +435,7 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	public function free()
 	{
 		oci_free_statement($this->resultSet);
-		$this->resultSet = NULL;
+		$this->resultSet = null;
 	}
 
 
@@ -449,7 +451,7 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 			$type = oci_field_type($this->resultSet, $i);
 			$columns[] = [
 				'name' => oci_field_name($this->resultSet, $i),
-				'table' => NULL,
+				'table' => null,
 				'fullname' => oci_field_name($this->resultSet, $i),
 				'nativetype' => $type === 'NUMBER' && oci_field_scale($this->resultSet, $i) === 0 ? 'INTEGER' : $type,
 			];
@@ -460,12 +462,12 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Returns the result set resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResultResource()
 	{
-		$this->autoFree = FALSE;
-		return is_resource($this->resultSet) ? $this->resultSet : NULL;
+		$this->autoFree = false;
+		return is_resource($this->resultSet) ? $this->resultSet : null;
 	}
 
 
@@ -480,7 +482,7 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	{
 		$res = $this->query('SELECT * FROM cat');
 		$tables = [];
-		while ($row = $res->fetch(FALSE)) {
+		while ($row = $res->fetch(false)) {
 			if ($row[1] === 'TABLE' || $row[1] === 'VIEW') {
 				$tables[] = [
 					'name' => $row[0],
@@ -501,12 +503,12 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	{
 		$res = $this->query('SELECT * FROM "ALL_TAB_COLUMNS" WHERE "TABLE_NAME" = ' . $this->escapeText($table));
 		$columns = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$columns[] = [
 				'table' => $row['TABLE_NAME'],
 				'name' => $row['COLUMN_NAME'],
 				'nativetype' => $row['DATA_TYPE'],
-				'size' => isset($row['DATA_LENGTH']) ? $row['DATA_LENGTH'] : NULL,
+				'size' => isset($row['DATA_LENGTH']) ? $row['DATA_LENGTH'] : null,
 				'nullable' => $row['NULLABLE'] === 'Y',
 				'default' => $row['DATA_DEFAULT'],
 				'vendor' => $row,
@@ -536,5 +538,4 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	{
 		throw new Dibi\NotImplementedException;
 	}
-
 }

src/Dibi/Drivers/PdoDriver.php

@@ -30,11 +30,11 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	/** @var PDO  Connection resource */
 	private $connection;
 
-	/** @var \PDOStatement|NULL  Resultset resource */
+	/** @var \PDOStatement|null  Resultset resource */
 	private $resultSet;
 
-	/** @var int|FALSE  Affected rows */
-	private $affectedRows = FALSE;
+	/** @var int|false  Affected rows */
+	private $affectedRows = false;
 
 	/** @var string */
 	private $driverName;
@@ -92,14 +92,14 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	 */
 	public function disconnect()
 	{
-		$this->connection = NULL;
+		$this->connection = null;
 	}
 
 
 	/**
 	 * Executes the SQL query.
 	 * @param  string      SQL statement.
-	 * @return Dibi\ResultDriver|NULL
+	 * @return Dibi\ResultDriver|null
 	 * @throws Dibi\DriverException
 	 */
 	public function query($sql)
@@ -107,12 +107,12 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 		// must detect if SQL returns result set or num of affected rows
 		$cmd = strtoupper(substr(ltrim($sql), 0, 6));
 		static $list = ['UPDATE' => 1, 'DELETE' => 1, 'INSERT' => 1, 'REPLAC' => 1];
-		$this->affectedRows = FALSE;
+		$this->affectedRows = false;
 
 		if (isset($list[$cmd])) {
 			$this->affectedRows = $this->connection->exec($sql);
-			if ($this->affectedRows !== FALSE) {
-				return NULL;
+			if ($this->affectedRows !== false) {
+				return null;
 			}
 		} else {
 			$res = $this->connection->query($sql);
@@ -144,7 +144,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
-	 * @return int|FALSE  number of rows or FALSE on error
+	 * @return int|false  number of rows or false on error
 	 */
 	public function getAffectedRows()
 	{
@@ -154,7 +154,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
-	 * @return int|FALSE  int on success or FALSE on failure
+	 * @return int|false  int on success or false on failure
 	 */
 	public function getInsertId($sequence)
 	{
@@ -168,7 +168,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function begin($savepoint = NULL)
+	public function begin($savepoint = null)
 	{
 		if (!$this->connection->beginTransaction()) {
 			$err = $this->connection->errorInfo();
@@ -183,7 +183,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function commit($savepoint = NULL)
+	public function commit($savepoint = null)
 	{
 		if (!$this->connection->commit()) {
 			$err = $this->connection->errorInfo();
@@ -198,7 +198,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function rollback($savepoint = NULL)
+	public function rollback($savepoint = null)
 	{
 		if (!$this->connection->rollBack()) {
 			$err = $this->connection->errorInfo();
@@ -348,7 +348,15 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
 			$value = new Dibi\DateTime($value);
 		}
-		return $value->format($this->driverName === 'odbc' ? "#m/d/Y H:i:s.u#" : "'Y-m-d H:i:s.u'");
+		switch ($this->driverName) {
+			case 'odbc':
+				return $value->format('#m/d/Y H:i:s.u#');
+			case 'mssql':
+			case 'sqlsrv':
+				return 'CONVERT(DATETIME2(7), ' . $value->format("'Y-m-d H:i:s.u'") . ')';
+			default:
+				return $value->format("'Y-m-d H:i:s.u'");
+		}
 	}
 
 
@@ -415,8 +423,8 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
-	 * @param  int|NULL
-	 * @param  int|NULL
+	 * @param  int|null
+	 * @param  int|null
 	 * @return void
 	 */
 	public function applyLimit(&$sql, $limit, $offset)
@@ -427,26 +435,26 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 
 		switch ($this->driverName) {
 			case 'mysql':
-				if ($limit !== NULL || $offset) {
+				if ($limit !== null || $offset) {
 					// see http://dev.mysql.com/doc/refman/5.0/en/select.html
-					$sql .= ' LIMIT ' . ($limit === NULL ? '18446744073709551615' : (int) $limit)
-						. ($offset ? ' OFFSET ' . (int) $offset : '');
+					$sql .= ' LIMIT ' . ($limit === null ? '18446744073709551615' : Dibi\Helpers::intVal($limit))
+						. ($offset ? ' OFFSET ' . Dibi\Helpers::intVal($offset) : '');
 				}
 				break;
 
 			case 'pgsql':
-				if ($limit !== NULL) {
-					$sql .= ' LIMIT ' . (int) $limit;
+				if ($limit !== null) {
+					$sql .= ' LIMIT ' . Dibi\Helpers::intVal($limit);
 				}
 				if ($offset) {
-					$sql .= ' OFFSET ' . (int) $offset;
+					$sql .= ' OFFSET ' . Dibi\Helpers::intVal($offset);
 				}
 				break;
 
 			case 'sqlite':
-				if ($limit !== NULL || $offset) {
-					$sql .= ' LIMIT ' . ($limit === NULL ? '-1' : (int) $limit)
-						. ($offset ? ' OFFSET ' . (int) $offset : '');
+				if ($limit !== null || $offset) {
+					$sql .= ' LIMIT ' . ($limit === null ? '-1' : Dibi\Helpers::intVal($limit))
+						. ($offset ? ' OFFSET ' . Dibi\Helpers::intVal($offset) : '');
 				}
 				break;
 
@@ -454,11 +462,11 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 				if ($offset) {
 					// see http://www.oracle.com/technology/oramag/oracle/06-sep/o56asktom.html
 					$sql = 'SELECT * FROM (SELECT t.*, ROWNUM AS "__rnum" FROM (' . $sql . ') t '
-						. ($limit !== NULL ? 'WHERE ROWNUM <= ' . ((int) $offset + (int) $limit) : '')
-						. ') WHERE "__rnum" > '. (int) $offset;
+						. ($limit !== null ? 'WHERE ROWNUM <= ' . ((int) $offset + (int) $limit) : '')
+						. ') WHERE "__rnum" > ' . $offset;
 
-				} elseif ($limit !== NULL) {
-					$sql = 'SELECT * FROM (' . $sql . ') WHERE ROWNUM <= ' . (int) $limit;
+				} elseif ($limit !== null) {
+					$sql = 'SELECT * FROM (' . $sql . ') WHERE ROWNUM <= ' . Dibi\Helpers::intVal($limit);
 				}
 				break;
 
@@ -467,25 +475,23 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 			case 'dblib':
 				if (version_compare($this->serverVersion, '11.0') >= 0) { // 11 == SQL Server 2012
 					// requires ORDER BY, see https://technet.microsoft.com/en-us/library/gg699618(v=sql.110).aspx
-					if ($limit !== NULL) {
+					if ($limit !== null) {
 						$sql = sprintf('%s OFFSET %d ROWS FETCH NEXT %d ROWS ONLY', rtrim($sql), $offset, $limit);
 					} elseif ($offset) {
 						$sql = sprintf('%s OFFSET %d ROWS', rtrim($sql), $offset);
 					}
 					break;
 				}
-				// intentionally break omitted
-
+				// break omitted
 			case 'odbc':
 				if ($offset) {
 					throw new Dibi\NotSupportedException('Offset is not supported by this database.');
 
-				} elseif ($limit !== NULL) {
-					$sql = 'SELECT TOP ' . (int) $limit . ' * FROM (' . $sql . ') t';
+				} elseif ($limit !== null) {
+					$sql = 'SELECT TOP ' . Dibi\Helpers::intVal($limit) . ' * FROM (' . $sql . ') t';
 					break;
 				}
-				// intentionally break omitted
-
+				// break omitted
 			default:
 				throw new Dibi\NotSupportedException('PDO or driver does not support applying limit or offset.');
 		}
@@ -507,7 +513,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Fetches the row at current position and moves the internal cursor to the next position.
-	 * @param  bool     TRUE for associative array, FALSE for numeric
+	 * @param  bool     true for associative array, false for numeric
 	 * @return array    array on success, nonarray if no next record
 	 */
 	public function fetch($assoc)
@@ -519,7 +525,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int   the 0-based cursor pos to seek to
-	 * @return bool  TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool  true on success, false if unable to seek to specified record
 	 */
 	public function seek($row)
 	{
@@ -533,7 +539,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	 */
 	public function free()
 	{
-		$this->resultSet = NULL;
+		$this->resultSet = null;
 	}
 
 
@@ -548,11 +554,11 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 		$columns = [];
 		for ($i = 0; $i < $count; $i++) {
 			$row = @$this->resultSet->getColumnMeta($i); // intentionally @
-			if ($row === FALSE) {
+			if ($row === false) {
 				throw new Dibi\NotSupportedException('Driver does not support meta data.');
 			}
 			$row = $row + [
-				'table' => NULL,
+				'table' => null,
 				'native_type' => 'VAR_STRING',
 			];
 
@@ -560,7 +566,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 				'name' => $row['name'],
 				'table' => $row['table'],
 				'nativetype' => $row['native_type'],
-				'type' => $row['native_type'] === 'TIME' && $this->driverName === 'mysql' ? Dibi\Type::TIME_INTERVAL : NULL,
+				'type' => $row['native_type'] === 'TIME' && $this->driverName === 'mysql' ? Dibi\Type::TIME_INTERVAL : null,
 				'fullname' => $row['table'] ? $row['table'] . '.' . $row['name'] : $row['name'],
 				'vendor' => $row,
 			];
@@ -571,11 +577,10 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Returns the result set resource.
-	 * @return \PDOStatement|NULL
+	 * @return \PDOStatement|null
 	 */
 	public function getResultResource()
 	{
 		return $this->resultSet;
 	}
-
 }

src/Dibi/Drivers/PostgreDriver.php

@@ -26,17 +26,17 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 {
 	use Dibi\Strict;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $connection;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $resultSet;
 
 	/** @var bool */
-	private $autoFree = TRUE;
+	private $autoFree = true;
 
-	/** @var int|FALSE  Affected rows */
-	private $affectedRows = FALSE;
+	/** @var int|false  Affected rows */
+	private $affectedRows = false;
 
 
 	/**
@@ -57,7 +57,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 */
 	public function connect(array &$config)
 	{
-		$error = NULL;
+		$error = null;
 		if (isset($config['resource'])) {
 			$this->connection = $config['resource'];
 
@@ -78,7 +78,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 				}
 			}
 
-			set_error_handler(function($severity, $message) use (&$error) {
+			set_error_handler(function ($severity, $message) use (&$error) {
 				$error = $message;
 			});
 			if (empty($config['persistent'])) {
@@ -96,7 +96,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		pg_set_error_verbosity($this->connection, PGSQL_ERRORS_VERBOSE);
 
 		if (isset($config['charset']) && pg_set_client_encoding($this->connection, $config['charset'])) {
-			throw self::createException(pg_last_error($this->connection));
+			throw static::createException(pg_last_error($this->connection));
 		}
 
 		if (isset($config['schema'])) {
@@ -128,16 +128,16 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Executes the SQL query.
 	 * @param  string      SQL statement.
-	 * @return Dibi\ResultDriver|NULL
+	 * @return Dibi\ResultDriver|null
 	 * @throws Dibi\DriverException
 	 */
 	public function query($sql)
 	{
-		$this->affectedRows = FALSE;
+		$this->affectedRows = false;
 		$res = @pg_query($this->connection, $sql); // intentionally @
 
-		if ($res === FALSE) {
-			throw self::createException(pg_last_error($this->connection), NULL, $sql);
+		if ($res === false) {
+			throw static::createException(pg_last_error($this->connection), null, $sql);
 
 		} elseif (is_resource($res)) {
 			$this->affectedRows = pg_affected_rows($res);
@@ -145,21 +145,21 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 				return $this->createResultDriver($res);
 			}
 		}
-		return NULL;
+		return null;
 	}
 
 
 	/**
 	 * @return Dibi\DriverException
 	 */
-	public static function createException($message, $code = NULL, $sql = NULL)
+	public static function createException($message, $code = null, $sql = null)
 	{
-		if ($code === NULL && preg_match('#^ERROR:\s+(\S+):\s*#', $message, $m)) {
+		if ($code === null && preg_match('#^ERROR:\s+(\S+):\s*#', $message, $m)) {
 			$code = $m[1];
 			$message = substr($message, strlen($m[0]));
 		}
 
-		if ($code === '0A000' && strpos($message, 'truncate') !== FALSE) {
+		if ($code === '0A000' && strpos($message, 'truncate') !== false) {
 			return new Dibi\ForeignKeyConstraintViolationException($message, $code, $sql);
 
 		} elseif ($code === '23502') {
@@ -179,7 +179,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
-	 * @return int|FALSE  number of rows or FALSE on error
+	 * @return int|false  number of rows or false on error
 	 */
 	public function getAffectedRows()
 	{
@@ -189,11 +189,11 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
-	 * @return int|FALSE  int on success or FALSE on failure
+	 * @return int|false  int on success or false on failure
 	 */
 	public function getInsertId($sequence)
 	{
-		if ($sequence === NULL) {
+		if ($sequence === null) {
 			// PostgreSQL 8.1 is needed
 			$res = $this->query('SELECT LASTVAL()');
 		} else {
@@ -201,11 +201,11 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		}
 
 		if (!$res) {
-			return FALSE;
+			return false;
 		}
 
-		$row = $res->fetch(FALSE);
-		return is_array($row) ? $row[0] : FALSE;
+		$row = $res->fetch(false);
+		return is_array($row) ? $row[0] : false;
 	}
 
 
@@ -215,7 +215,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function begin($savepoint = NULL)
+	public function begin($savepoint = null)
 	{
 		$this->query($savepoint ? "SAVEPOINT $savepoint" : 'START TRANSACTION');
 	}
@@ -227,7 +227,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function commit($savepoint = NULL)
+	public function commit($savepoint = null)
 	{
 		$this->query($savepoint ? "RELEASE SAVEPOINT $savepoint" : 'COMMIT');
 	}
@@ -239,7 +239,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function rollback($savepoint = NULL)
+	public function rollback($savepoint = null)
 	{
 		$this->query($savepoint ? "ROLLBACK TO SAVEPOINT $savepoint" : 'ROLLBACK');
 	}
@@ -251,17 +251,17 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 */
 	public function inTransaction()
 	{
-		return !in_array(pg_transaction_status($this->connection), [PGSQL_TRANSACTION_UNKNOWN, PGSQL_TRANSACTION_IDLE], TRUE);
+		return !in_array(pg_transaction_status($this->connection), [PGSQL_TRANSACTION_UNKNOWN, PGSQL_TRANSACTION_IDLE], true);
 	}
 
 
 	/**
 	 * Returns the connection resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResource()
 	{
-		return is_resource($this->connection) ? $this->connection : NULL;
+		return is_resource($this->connection) ? $this->connection : null;
 	}
 
 
@@ -402,8 +402,8 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
-	 * @param  int|NULL
-	 * @param  int|NULL
+	 * @param  int|null
+	 * @param  int|null
 	 * @return void
 	 */
 	public function applyLimit(&$sql, $limit, $offset)
@@ -411,11 +411,11 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		if ($limit < 0 || $offset < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
 		}
-		if ($limit !== NULL) {
-			$sql .= ' LIMIT ' . (int) $limit;
+		if ($limit !== null) {
+			$sql .= ' LIMIT ' . Dibi\Helpers::intVal($limit);
 		}
 		if ($offset) {
-			$sql .= ' OFFSET ' . (int) $offset;
+			$sql .= ' OFFSET ' . Dibi\Helpers::intVal($offset);
 		}
 	}
 
@@ -445,19 +445,19 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Fetches the row at current position and moves the internal cursor to the next position.
-	 * @param  bool     TRUE for associative array, FALSE for numeric
+	 * @param  bool     true for associative array, false for numeric
 	 * @return array    array on success, nonarray if no next record
 	 */
 	public function fetch($assoc)
 	{
-		return pg_fetch_array($this->resultSet, NULL, $assoc ? PGSQL_ASSOC : PGSQL_NUM);
+		return pg_fetch_array($this->resultSet, null, $assoc ? PGSQL_ASSOC : PGSQL_NUM);
 	}
 
 
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int   the 0-based cursor pos to seek to
-	 * @return bool  TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool  true on success, false if unable to seek to specified record
 	 */
 	public function seek($row)
 	{
@@ -472,7 +472,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	public function free()
 	{
 		pg_free_result($this->resultSet);
-		$this->resultSet = NULL;
+		$this->resultSet = null;
 	}
 
 
@@ -499,12 +499,12 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 	/**
 	 * Returns the result set resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResultResource()
 	{
-		$this->autoFree = FALSE;
-		return is_resource($this->resultSet) ? $this->resultSet : NULL;
+		$this->autoFree = false;
+		return is_resource($this->resultSet) ? $this->resultSet : null;
 	}
 
 
@@ -601,13 +601,13 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		}
 
 		$columns = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$size = (int) max($row['character_maximum_length'], $row['numeric_precision']);
 			$columns[] = [
 				'name' => $row['column_name'],
 				'table' => $table,
 				'nativetype' => strtoupper($row['udt_name']),
-				'size' => $size > 0 ? $size : NULL,
+				'size' => $size > 0 ? $size : null,
 				'nullable' => $row['is_nullable'] === 'YES' || $row['is_nullable'] === 't',
 				'default' => $row['column_default'],
 				'autoincrement' => (int) $row['ordinal_position'] === $primary && substr($row['column_default'], 0, 7) === 'nextval',
@@ -641,7 +641,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		");
 
 		$columns = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$columns[$row['ordinal_position']] = $row['column_name'];
 		}
 
@@ -654,7 +654,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		");
 
 		$indexes = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$indexes[$row['relname']]['name'] = $row['relname'];
 			$indexes[$row['relname']]['unique'] = $row['indisunique'] === 't';
 			$indexes[$row['relname']]['primary'] = $row['indisprimary'] === 't';
@@ -715,7 +715,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		");
 
 		$fKeys = $references = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			if (!isset($fKeys[$row['name']])) {
 				$fKeys[$row['name']] = [
 					'name' => $row['name'],
@@ -740,5 +740,4 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 
 		return $fKeys;
 	}
-
 }

src/Dibi/Drivers/Sqlite3Driver.php

@@ -27,20 +27,24 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 {
 	use Dibi\Strict;
 
-	/** @var SQLite3|NULL */
+	/** @var SQLite3|null */
 	private $connection;
 
-	/** @var \SQLite3Result|NULL */
+	/** @var \SQLite3Result|null */
 	private $resultSet;
 
 	/** @var bool */
-	private $autoFree = TRUE;
+	private $autoFree = true;
 
 	/** @var string  Date and datetime format */
-	private $fmtDate, $fmtDateTime;
+	private $fmtDate;
+
+	private $fmtDateTime;
 
 	/** @var string  character encoding */
-	private $dbcharset, $charset;
+	private $dbcharset;
+
+	private $charset;
 
 
 	/**
@@ -78,7 +82,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 		$this->dbcharset = empty($config['dbcharset']) ? 'UTF-8' : $config['dbcharset'];
 		$this->charset = empty($config['charset']) ? 'UTF-8' : $config['charset'];
 		if (strcasecmp($this->dbcharset, $this->charset) === 0) {
-			$this->dbcharset = $this->charset = NULL;
+			$this->dbcharset = $this->charset = null;
 		}
 
 		// enable foreign keys support (defaultly disabled; if disabled then foreign key constraints are not enforced)
@@ -102,23 +106,23 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Executes the SQL query.
 	 * @param  string      SQL statement.
-	 * @return Dibi\ResultDriver|NULL
+	 * @return Dibi\ResultDriver|null
 	 * @throws Dibi\DriverException
 	 */
 	public function query($sql)
 	{
-		if ($this->dbcharset !== NULL) {
+		if ($this->dbcharset !== null) {
 			$sql = iconv($this->charset, $this->dbcharset . '//IGNORE', $sql);
 		}
 
 		$res = @$this->connection->query($sql); // intentionally @
 		if ($code = $this->connection->lastErrorCode()) {
-			throw self::createException($this->connection->lastErrorMsg(), $code, $sql);
+			throw static::createException($this->connection->lastErrorMsg(), $code, $sql);
 
-		} elseif ($res instanceof \SQLite3Result) {
+		} elseif ($res instanceof \SQLite3Result && $res->numColumns()) {
 			return $this->createResultDriver($res);
 		}
-		return NULL;
+		return null;
 	}
 
 
@@ -130,19 +134,19 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 		if ($code !== 19) {
 			return new Dibi\DriverException($message, $code, $sql);
 
-		} elseif (strpos($message, 'must be unique') !== FALSE
-			|| strpos($message, 'is not unique') !== FALSE
-			|| strpos($message, 'UNIQUE constraint failed') !== FALSE
+		} elseif (strpos($message, 'must be unique') !== false
+			|| strpos($message, 'is not unique') !== false
+			|| strpos($message, 'UNIQUE constraint failed') !== false
 		) {
 			return new Dibi\UniqueConstraintViolationException($message, $code, $sql);
 
-		} elseif (strpos($message, 'may not be NULL') !== FALSE
-			|| strpos($message, 'NOT NULL constraint failed') !== FALSE
+		} elseif (strpos($message, 'may not be NULL') !== false
+			|| strpos($message, 'NOT NULL constraint failed') !== false
 		) {
 			return new Dibi\NotNullConstraintViolationException($message, $code, $sql);
 
-		} elseif (strpos($message, 'foreign key constraint failed') !== FALSE
-			|| strpos($message, 'FOREIGN KEY constraint failed') !== FALSE
+		} elseif (strpos($message, 'foreign key constraint failed') !== false
+			|| strpos($message, 'FOREIGN KEY constraint failed') !== false
 		) {
 			return new Dibi\ForeignKeyConstraintViolationException($message, $code, $sql);
 
@@ -154,7 +158,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
-	 * @return int|FALSE  number of rows or FALSE on error
+	 * @return int|false  number of rows or false on error
 	 */
 	public function getAffectedRows()
 	{
@@ -164,7 +168,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
-	 * @return int|FALSE  int on success or FALSE on failure
+	 * @return int|false  int on success or false on failure
 	 */
 	public function getInsertId($sequence)
 	{
@@ -178,7 +182,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function begin($savepoint = NULL)
+	public function begin($savepoint = null)
 	{
 		$this->query($savepoint ? "SAVEPOINT $savepoint" : 'BEGIN');
 	}
@@ -190,7 +194,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function commit($savepoint = NULL)
+	public function commit($savepoint = null)
 	{
 		$this->query($savepoint ? "RELEASE SAVEPOINT $savepoint" : 'COMMIT');
 	}
@@ -202,7 +206,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function rollback($savepoint = NULL)
+	public function rollback($savepoint = null)
 	{
 		$this->query($savepoint ? "ROLLBACK TO SAVEPOINT $savepoint" : 'ROLLBACK');
 	}
@@ -346,8 +350,8 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
-	 * @param  int|NULL
-	 * @param  int|NULL
+	 * @param  int|null
+	 * @param  int|null
 	 * @return void
 	 */
 	public function applyLimit(&$sql, $limit, $offset)
@@ -355,9 +359,9 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 		if ($limit < 0 || $offset < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
 
-		} elseif ($limit !== NULL || $offset) {
-			$sql .= ' LIMIT ' . ($limit === NULL ? '-1' : (int) $limit)
-				. ($offset ? ' OFFSET ' . (int) $offset : '');
+		} elseif ($limit !== null || $offset) {
+			$sql .= ' LIMIT ' . ($limit === null ? '-1' : Dibi\Helpers::intVal($limit))
+				. ($offset ? ' OFFSET ' . Dibi\Helpers::intVal($offset) : '');
 		}
 	}
 
@@ -388,17 +392,17 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Fetches the row at current position and moves the internal cursor to the next position.
-	 * @param  bool     TRUE for associative array, FALSE for numeric
+	 * @param  bool     true for associative array, false for numeric
 	 * @return array    array on success, nonarray if no next record
 	 */
 	public function fetch($assoc)
 	{
 		$row = $this->resultSet->fetchArray($assoc ? SQLITE3_ASSOC : SQLITE3_NUM);
-		$charset = $this->charset === NULL ? NULL : $this->charset . '//TRANSLIT';
+		$charset = $this->charset === null ? null : $this->charset . '//TRANSLIT';
 		if ($row && ($assoc || $charset)) {
 			$tmp = [];
 			foreach ($row as $k => $v) {
-				if ($charset !== NULL && is_string($v)) {
+				if ($charset !== null && is_string($v)) {
 					$v = iconv($this->dbcharset, $charset, $v);
 				}
 				$tmp[str_replace(['[', ']'], '', $k)] = $v;
@@ -412,7 +416,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int   the 0-based cursor pos to seek to
-	 * @return bool  TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool  true on success, false if unable to seek to specified record
 	 * @throws Dibi\NotSupportedException
 	 */
 	public function seek($row)
@@ -428,7 +432,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	public function free()
 	{
 		$this->resultSet->finalize();
-		$this->resultSet = NULL;
+		$this->resultSet = null;
 	}
 
 
@@ -444,7 +448,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 		for ($i = 0; $i < $count; $i++) {
 			$columns[] = [
 				'name' => $this->resultSet->columnName($i),
-				'table' => NULL,
+				'table' => null,
 				'fullname' => $this->resultSet->columnName($i),
 				'nativetype' => $types[$this->resultSet->columnType($i)],
 			];
@@ -455,11 +459,11 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Returns the result set resource.
-	 * @return \SQLite3Result|NULL
+	 * @return \SQLite3Result|null
 	 */
 	public function getResultResource()
 	{
-		$this->autoFree = FALSE;
+		$this->autoFree = false;
 		return $this->resultSet;
 	}
 
@@ -492,5 +496,4 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	{
 		$this->connection->createAggregate($name, $rowCallback, $agrCallback, $numArgs);
 	}
-
 }

src/Dibi/Drivers/SqliteReflector.php

@@ -41,7 +41,7 @@ class SqliteReflector implements Dibi\Reflector
 			ORDER BY name
 		");
 		$tables = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$tables[] = $row;
 		}
 		return $tables;
@@ -57,7 +57,7 @@ class SqliteReflector implements Dibi\Reflector
 	{
 		$res = $this->driver->query("PRAGMA table_info({$this->driver->escapeIdentifier($table)})");
 		$columns = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$column = $row['name'];
 			$type = explode('(', $row['type']);
 			$columns[] = [
@@ -65,7 +65,7 @@ class SqliteReflector implements Dibi\Reflector
 				'table' => $table,
 				'fullname' => "$table.$column",
 				'nativetype' => strtoupper($type[0]),
-				'size' => isset($type[1]) ? (int) $type[1] : NULL,
+				'size' => isset($type[1]) ? (int) $type[1] : null,
 				'nullable' => $row['notnull'] == '0',
 				'default' => $row['dflt_value'],
 				'autoincrement' => $row['pk'] && $type[0] === 'INTEGER',
@@ -85,14 +85,14 @@ class SqliteReflector implements Dibi\Reflector
 	{
 		$res = $this->driver->query("PRAGMA index_list({$this->driver->escapeIdentifier($table)})");
 		$indexes = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$indexes[$row['name']]['name'] = $row['name'];
 			$indexes[$row['name']]['unique'] = (bool) $row['unique'];
 		}
 
 		foreach ($indexes as $index => $values) {
 			$res = $this->driver->query("PRAGMA index_info({$this->driver->escapeIdentifier($index)})");
-			while ($row = $res->fetch(TRUE)) {
+			while ($row = $res->fetch(true)) {
 				$indexes[$index]['columns'][$row['seqno']] = $row['name'];
 			}
 		}
@@ -100,7 +100,7 @@ class SqliteReflector implements Dibi\Reflector
 		$columns = $this->getColumns($table);
 		foreach ($indexes as $index => $values) {
 			$column = $indexes[$index]['columns'][0];
-			$primary = FALSE;
+			$primary = false;
 			foreach ($columns as $info) {
 				if ($column == $info['name']) {
 					$primary = $info['vendor']['pk'];
@@ -114,8 +114,8 @@ class SqliteReflector implements Dibi\Reflector
 				if ($column['vendor']['pk']) {
 					$indexes[] = [
 						'name' => 'ROWID',
-						'unique' => TRUE,
-						'primary' => TRUE,
+						'unique' => true,
+						'primary' => true,
 						'columns' => [$column['name']],
 					];
 					break;
@@ -136,7 +136,7 @@ class SqliteReflector implements Dibi\Reflector
 	{
 		$res = $this->driver->query("PRAGMA foreign_key_list({$this->driver->escapeIdentifier($table)})");
 		$keys = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$keys[$row['id']]['name'] = $row['id']; // foreign key name
 			$keys[$row['id']]['local'][$row['seq']] = $row['from']; // local columns
 			$keys[$row['id']]['table'] = $row['table']; // referenced table
@@ -144,11 +144,10 @@ class SqliteReflector implements Dibi\Reflector
 			$keys[$row['id']]['onDelete'] = $row['on_delete'];
 			$keys[$row['id']]['onUpdate'] = $row['on_update'];
 
-			if ($keys[$row['id']]['foreign'][0] == NULL) {
-				$keys[$row['id']]['foreign'] = NULL;
+			if ($keys[$row['id']]['foreign'][0] == null) {
+				$keys[$row['id']]['foreign'] = null;
 			}
 		}
 		return array_values($keys);
 	}
-
 }

src/Dibi/Drivers/SqlsrvDriver.php

@@ -8,7 +8,6 @@
 namespace Dibi\Drivers;
 
 use Dibi;
-use Dibi\Connection;
 use Dibi\Helpers;
 
 
@@ -29,17 +28,17 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 {
 	use Dibi\Strict;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $connection;
 
-	/** @var resource|NULL */
+	/** @var resource|null */
 	private $resultSet;
 
 	/** @var bool */
-	private $autoFree = TRUE;
+	private $autoFree = true;
 
-	/** @var int|FALSE  Affected rows */
-	private $affectedRows = FALSE;
+	/** @var int|false  Affected rows */
+	private $affectedRows = false;
 
 	/** @var string */
 	private $version = '';
@@ -106,29 +105,29 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Executes the SQL query.
 	 * @param  string      SQL statement.
-	 * @return Dibi\ResultDriver|NULL
+	 * @return Dibi\ResultDriver|null
 	 * @throws Dibi\DriverException
 	 */
 	public function query($sql)
 	{
-		$this->affectedRows = FALSE;
+		$this->affectedRows = false;
 		$res = sqlsrv_query($this->connection, $sql);
 
-		if ($res === FALSE) {
+		if ($res === false) {
 			$info = sqlsrv_errors();
 			throw new Dibi\DriverException($info[0]['message'], $info[0]['code'], $sql);
 
 		} elseif (is_resource($res)) {
 			$this->affectedRows = sqlsrv_rows_affected($res);
-			return $this->createResultDriver($res);
+			return sqlsrv_num_fields($res) ? $this->createResultDriver($res) : null;
 		}
-		return NULL;
+		return null;
 	}
 
 
 	/**
 	 * Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
-	 * @return int|FALSE  number of rows or FALSE on error
+	 * @return int|false  number of rows or false on error
 	 */
 	public function getAffectedRows()
 	{
@@ -138,7 +137,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
-	 * @return int|FALSE  int on success or FALSE on failure
+	 * @return int|false  int on success or false on failure
 	 */
 	public function getInsertId($sequence)
 	{
@@ -147,7 +146,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 			$row = sqlsrv_fetch_array($res, SQLSRV_FETCH_NUMERIC);
 			return $row[0];
 		}
-		return FALSE;
+		return false;
 	}
 
 
@@ -157,7 +156,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function begin($savepoint = NULL)
+	public function begin($savepoint = null)
 	{
 		sqlsrv_begin_transaction($this->connection);
 	}
@@ -169,7 +168,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function commit($savepoint = NULL)
+	public function commit($savepoint = null)
 	{
 		sqlsrv_commit($this->connection);
 	}
@@ -181,7 +180,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\DriverException
 	 */
-	public function rollback($savepoint = NULL)
+	public function rollback($savepoint = null)
 	{
 		sqlsrv_rollback($this->connection);
 	}
@@ -189,11 +188,11 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Returns the connection resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResource()
 	{
-		return is_resource($this->connection) ? $this->connection : NULL;
+		return is_resource($this->connection) ? $this->connection : null;
 	}
 
 
@@ -287,7 +286,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
 			$value = new Dibi\DateTime($value);
 		}
-		return $value->format("'Y-m-d H:i:s.u'");
+		return 'CONVERT(DATETIME2(7), ' . $value->format("'Y-m-d H:i:s.u'") . ')';
 	}
 
 
@@ -326,8 +325,8 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
-	 * @param  int|NULL
-	 * @param  int|NULL
+	 * @param  int|null
+	 * @param  int|null
 	 * @return void
 	 */
 	public function applyLimit(&$sql, $limit, $offset)
@@ -339,11 +338,11 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 			if ($offset) {
 				throw new Dibi\NotSupportedException('Offset is not supported by this database.');
 
-			} elseif ($limit !== NULL) {
+			} elseif ($limit !== null) {
 				$sql = sprintf('SELECT TOP (%d) * FROM (%s) t', $limit, $sql);
 			}
 
-		} elseif ($limit !== NULL) {
+		} elseif ($limit !== null) {
 			// requires ORDER BY, see https://technet.microsoft.com/en-us/library/gg699618(v=sql.110).aspx
 			$sql = sprintf('%s OFFSET %d ROWS FETCH NEXT %d ROWS ONLY', rtrim($sql), $offset, $limit);
 		} elseif ($offset) {
@@ -378,7 +377,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Fetches the row at current position and moves the internal cursor to the next position.
-	 * @param  bool     TRUE for associative array, FALSE for numeric
+	 * @param  bool     true for associative array, false for numeric
 	 * @return array    array on success, nonarray if no next record
 	 */
 	public function fetch($assoc)
@@ -390,7 +389,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int   the 0-based cursor pos to seek to
-	 * @return bool  TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool  true on success, false if unable to seek to specified record
 	 */
 	public function seek($row)
 	{
@@ -405,7 +404,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	public function free()
 	{
 		sqlsrv_free_stmt($this->resultSet);
-		$this->resultSet = NULL;
+		$this->resultSet = null;
 	}
 
 
@@ -429,12 +428,11 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 
 	/**
 	 * Returns the result set resource.
-	 * @return resource|NULL
+	 * @return resource|null
 	 */
 	public function getResultResource()
 	{
-		$this->autoFree = FALSE;
-		return is_resource($this->resultSet) ? $this->resultSet : NULL;
+		$this->autoFree = false;
+		return is_resource($this->resultSet) ? $this->resultSet : null;
 	}
-
 }

src/Dibi/Drivers/SqlsrvReflector.php

@@ -36,7 +36,7 @@ class SqlsrvReflector implements Dibi\Reflector
 	{
 		$res = $this->driver->query("SELECT TABLE_NAME, TABLE_TYPE FROM INFORMATION_SCHEMA.TABLES WHERE [TABLE_SCHEMA] = 'dbo'");
 		$tables = [];
-		while ($row = $res->fetch(FALSE)) {
+		while ($row = $res->fetch(false)) {
 			$tables[] = [
 				'name' => $row[0],
 				'view' => isset($row[1]) && $row[1] === 'VIEW',
@@ -61,7 +61,7 @@ class SqlsrvReflector implements Dibi\Reflector
 		");
 
 		$autoIncrements = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$autoIncrements[$row['COLUMN_NAME']] = (bool) $row['AUTO_INCREMENT'];
 		}
 
@@ -81,13 +81,13 @@ class SqlsrvReflector implements Dibi\Reflector
 			WHERE C.TABLE_NAME = {$this->driver->escapeText($table)}
 		");
 		$columns = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$columns[] = [
 				'name' => $row['COLUMN_NAME'],
 				'table' => $table,
 				'nativetype' => strtoupper($row['DATA_TYPE']),
 				'size' => $row['CHARACTER_MAXIMUM_LENGTH'],
-				'unsigned' => TRUE,
+				'unsigned' => true,
 				'nullable' => $row['IS_NULLABLE'] === 'YES',
 				'default' => $row['COLUMN_DEFAULT'],
 				'autoincrement' => $autoIncrements[$row['COLUMN_NAME']],
@@ -105,15 +105,15 @@ class SqlsrvReflector implements Dibi\Reflector
 	 */
 	public function getIndexes($table)
 	{
-		$keyUsagesRes = $this->driver->query(sprintf("EXEC [sys].[sp_helpindex] @objname = N%s", $this->driver->escapeText($table)));
+		$keyUsagesRes = $this->driver->query(sprintf('EXEC [sys].[sp_helpindex] @objname = N%s', $this->driver->escapeText($table)));
 		$keyUsages = [];
-		while ($row = $keyUsagesRes->fetch(TRUE)) {
+		while ($row = $keyUsagesRes->fetch(true)) {
 			$keyUsages[$row['index_name']] = explode(',', $row['index_keys']);
 		}
 
 		$res = $this->driver->query("SELECT [i].* FROM [sys].[indexes] [i] INNER JOIN [sys].[tables] [t] ON [i].[object_id] = [t].[object_id] WHERE [t].[name] = {$this->driver->escapeText($table)}");
 		$indexes = [];
-		while ($row = $res->fetch(TRUE)) {
+		while ($row = $res->fetch(true)) {
 			$indexes[$row['name']]['name'] = $row['name'];
 			$indexes[$row['name']]['unique'] = $row['is_unique'] === 1;
 			$indexes[$row['name']]['primary'] = $row['is_primary_key'] === 1;
@@ -132,5 +132,4 @@ class SqlsrvReflector implements Dibi\Reflector
 	{
 		throw new Dibi\NotImplementedException;
 	}
-
 }

src/Dibi/Event.php

@@ -37,7 +37,7 @@ class Event
 	/** @var string */
 	public $sql;
 
-	/** @var Result|DriverException|NULL */
+	/** @var Result|DriverException|null */
 	public $result;
 
 	/** @var float */
@@ -50,12 +50,12 @@ class Event
 	public $source;
 
 
-	public function __construct(Connection $connection, $type, $sql = NULL)
+	public function __construct(Connection $connection, $type, $sql = null)
 	{
 		$this->connection = $connection;
 		$this->type = $type;
 		$this->sql = trim($sql);
-		$this->time = -microtime(TRUE);
+		$this->time = -microtime(true);
 
 		if ($type === self::QUERY && preg_match('#\(?\s*(SELECT|UPDATE|INSERT|DELETE)#iA', $this->sql, $matches)) {
 			static $types = [
@@ -67,32 +67,31 @@ class Event
 
 		$rc = new \ReflectionClass('dibi');
 		$dibiDir = dirname($rc->getFileName()) . DIRECTORY_SEPARATOR;
-		foreach (debug_backtrace(FALSE) as $row) {
+		foreach (debug_backtrace(false) as $row) {
 			if (isset($row['file']) && is_file($row['file']) && strpos($row['file'], $dibiDir) !== 0) {
 				$this->source = [$row['file'], (int) $row['line']];
 				break;
 			}
 		}
 
-		\dibi::$elapsedTime = FALSE;
+		\dibi::$elapsedTime = false;
 		\dibi::$numOfQueries++;
 		\dibi::$sql = $sql;
 	}
 
 
-	public function done($result = NULL)
+	public function done($result = null)
 	{
 		$this->result = $result;
 		try {
-			$this->count = $result instanceof Result ? count($result) : NULL;
+			$this->count = $result instanceof Result ? count($result) : null;
 		} catch (Exception $e) {
-			$this->count = NULL;
+			$this->count = null;
 		}
 
-		$this->time += microtime(TRUE);
+		$this->time += microtime(true);
 		\dibi::$elapsedTime = $this->time;
 		\dibi::$totalTime += $this->time;
 		return $this;
 	}
-
 }

src/Dibi/Expression.php

@@ -0,0 +1,32 @@
+<?php
+
+/**
+ * This file is part of the "dibi" - smart database abstraction layer.
+ * Copyright (c) 2005 David Grudl (https://davidgrudl.com)
+ */
+
+namespace Dibi;
+
+
+/**
+ * SQL expression.
+ */
+class Expression
+{
+	use Strict;
+
+	/** @var array */
+	private $values;
+
+
+	public function __construct()
+	{
+		$this->values = func_get_args();
+	}
+
+
+	public function getValues()
+	{
+		return $this->values;
+	}
+}

src/Dibi/Fluent.php

@@ -33,12 +33,12 @@ class Fluent implements IDataSource
 {
 	use Strict;
 
-	const REMOVE = FALSE;
+	const REMOVE = false;
 
 	/** @var array */
 	public static $masks = [
 		'SELECT' => ['SELECT', 'DISTINCT', 'FROM', 'WHERE', 'GROUP BY',
-			'HAVING', 'ORDER BY', 'LIMIT', 'OFFSET'],
+			'HAVING', 'ORDER BY', 'LIMIT', 'OFFSET', ],
 		'UPDATE' => ['UPDATE', 'SET', 'WHERE', 'ORDER BY', 'LIMIT'],
 		'INSERT' => ['INSERT', 'INTO', 'VALUES', 'SELECT'],
 		'DELETE' => ['DELETE', 'FROM', 'USING', 'WHERE', 'ORDER BY', 'LIMIT'],
@@ -65,11 +65,11 @@ class Fluent implements IDataSource
 		'GROUP BY' => ',',
 		'HAVING' => 'AND',
 		'ORDER BY' => ',',
-		'LIMIT' => FALSE,
-		'OFFSET' => FALSE,
+		'LIMIT' => false,
+		'OFFSET' => false,
 		'SET' => ',',
 		'VALUES' => ',',
-		'INTO' => FALSE,
+		'INTO' => false,
 	];
 
 	/** @var array  clauses */
@@ -109,7 +109,7 @@ class Fluent implements IDataSource
 	{
 		$this->connection = $connection;
 
-		if (self::$normalizer === NULL) {
+		if (self::$normalizer === null) {
 			self::$normalizer = new HashMap([__CLASS__, '_formatClause']);
 		}
 	}
@@ -126,9 +126,9 @@ class Fluent implements IDataSource
 		$clause = self::$normalizer->$clause;
 
 		// lazy initialization
-		if ($this->command === NULL) {
+		if ($this->command === null) {
 			if (isset(self::$masks[$clause])) {
-				$this->clauses = array_fill_keys(self::$masks[$clause], NULL);
+				$this->clauses = array_fill_keys(self::$masks[$clause], null);
 			}
 			$this->cursor = &$this->clauses[$clause];
 			$this->cursor = [];
@@ -146,13 +146,13 @@ class Fluent implements IDataSource
 
 			// TODO: really delete?
 			if ($args === [self::REMOVE]) {
-				$this->cursor = NULL;
+				$this->cursor = null;
 				return $this;
 			}
 
 			if (isset(self::$separators[$clause])) {
 				$sep = self::$separators[$clause];
-				if ($sep === FALSE) { // means: replace
+				if ($sep === false) { // means: replace
 					$this->cursor = [];
 
 				} elseif (!empty($this->cursor)) {
@@ -169,15 +169,15 @@ class Fluent implements IDataSource
 			$this->cursor[] = $clause;
 		}
 
-		if ($this->cursor === NULL) {
+		if ($this->cursor === null) {
 			$this->cursor = [];
 		}
 
 		// special types or argument
 		if (count($args) === 1) {
 			$arg = $args[0];
-			// TODO: really ignore TRUE?
-			if ($arg === TRUE) { // flag
+			// TODO: really ignore true?
+			if ($arg === true) { // flag
 				return $this;
 
 			} elseif (is_string($arg) && preg_match('#^[a-z:_][a-z0-9_.:]*\z#i', $arg)) { // identifier
@@ -190,7 +190,7 @@ class Fluent implements IDataSource
 				} elseif (is_string(key($arg))) { // associative array
 					$args = ['%a', $arg];
 				}
-			} // case $arg === FALSE is handled above
+			} // case $arg === false is handled above
 		}
 
 		foreach ($args as $arg) {
@@ -212,7 +212,7 @@ class Fluent implements IDataSource
 	public function clause($clause)
 	{
 		$this->cursor = &$this->clauses[self::$normalizer->$clause];
-		if ($this->cursor === NULL) {
+		if ($this->cursor === null) {
 			$this->cursor = [];
 		}
 
@@ -227,7 +227,7 @@ class Fluent implements IDataSource
 	 */
 	public function removeClause($clause)
 	{
-		$this->clauses[self::$normalizer->$clause] = NULL;
+		$this->clauses[self::$normalizer->$clause] = null;
 		return $this;
 	}
 
@@ -238,11 +238,11 @@ class Fluent implements IDataSource
 	 * @param  bool  value
 	 * @return self
 	 */
-	public function setFlag($flag, $value = TRUE)
+	public function setFlag($flag, $value = true)
 	{
 		$flag = strtoupper($flag);
 		if ($value) {
-			$this->flags[$flag] = TRUE;
+			$this->flags[$flag] = true;
 		} else {
 			unset($this->flags[$flag]);
 		}
@@ -303,7 +303,7 @@ class Fluent implements IDataSource
 	 * @return Result|int  result set or number of affected rows
 	 * @throws Exception
 	 */
-	public function execute($return = NULL)
+	public function execute($return = null)
 	{
 		$res = $this->query($this->_export());
 		switch ($return) {
@@ -319,12 +319,12 @@ class Fluent implements IDataSource
 
 	/**
 	 * Generates, executes SQL query and fetches the single row.
-	 * @return Row|FALSE
+	 * @return Row|false
 	 */
 	public function fetch()
 	{
 		if ($this->command === 'SELECT' && !$this->clauses['LIMIT']) {
-			return $this->query($this->_export(NULL, ['%lmt', 1]))->fetch();
+			return $this->query($this->_export(null, ['%lmt', 1]))->fetch();
 		} else {
 			return $this->query($this->_export())->fetch();
 		}
@@ -333,12 +333,12 @@ class Fluent implements IDataSource
 
 	/**
 	 * Like fetch(), but returns only first field.
-	 * @return mixed  value on success, FALSE if no next record
+	 * @return mixed  value on success, false if no next record
 	 */
 	public function fetchSingle()
 	{
 		if ($this->command === 'SELECT' && !$this->clauses['LIMIT']) {
-			return $this->query($this->_export(NULL, ['%lmt', 1]))->fetchSingle();
+			return $this->query($this->_export(null, ['%lmt', 1]))->fetchSingle();
 		} else {
 			return $this->query($this->_export())->fetchSingle();
 		}
@@ -351,9 +351,9 @@ class Fluent implements IDataSource
 	 * @param  int  limit
 	 * @return array
 	 */
-	public function fetchAll($offset = NULL, $limit = NULL)
+	public function fetchAll($offset = null, $limit = null)
 	{
-		return $this->query($this->_export(NULL, ['%ofs %lmt', $offset, $limit]))->fetchAll();
+		return $this->query($this->_export(null, ['%ofs %lmt', $offset, $limit]))->fetchAll();
 	}
 
 
@@ -374,7 +374,7 @@ class Fluent implements IDataSource
 	 * @param  string  value
 	 * @return array
 	 */
-	public function fetchPairs($key = NULL, $value = NULL)
+	public function fetchPairs($key = null, $value = null)
 	{
 		return $this->query($this->_export())->fetchPairs($key, $value);
 	}
@@ -386,9 +386,9 @@ class Fluent implements IDataSource
 	 * @param  int  limit
 	 * @return ResultIterator
 	 */
-	public function getIterator($offset = NULL, $limit = NULL)
+	public function getIterator($offset = null, $limit = null)
 	{
-		return $this->query($this->_export(NULL, ['%ofs %lmt', $offset, $limit]))->getIterator();
+		return $this->query($this->_export(null, ['%ofs %lmt', $offset, $limit]))->getIterator();
 	}
 
 
@@ -397,7 +397,7 @@ class Fluent implements IDataSource
 	 * @param  string clause name
 	 * @return bool
 	 */
-	public function test($clause = NULL)
+	public function test($clause = null)
 	{
 		return $this->connection->test($this->_export($clause));
 	}
@@ -408,14 +408,14 @@ class Fluent implements IDataSource
 	 */
 	public function count()
 	{
-		return (int) $this->query([
+		return Helpers::intVal($this->query([
 			'SELECT COUNT(*) FROM (%ex', $this->_export(), ') [data]',
-		])->fetchSingle();
+		])->fetchSingle());
 	}
 
 
 	/**
-	 * @return Result
+	 * @return Result|int
 	 */
 	private function query($args)
 	{
@@ -449,6 +449,7 @@ class Fluent implements IDataSource
 			return $this->connection->translate($this->_export());
 		} catch (\Exception $e) {
 			trigger_error($e->getMessage(), E_USER_ERROR);
+			return '';
 		}
 	}
 
@@ -458,9 +459,9 @@ class Fluent implements IDataSource
 	 * @param  string clause name
 	 * @return array
 	 */
-	protected function _export($clause = NULL, $args = [])
+	protected function _export($clause = null, $args = [])
 	{
-		if ($clause === NULL) {
+		if ($clause === null) {
 			$data = $this->clauses;
 			if ($this->command === 'SELECT' && ($data['LIMIT'] || $data['OFFSET'])) {
 				$args = array_merge(['%lmt %ofs', $data['LIMIT'][0], $data['OFFSET'][0]], $args);
@@ -477,7 +478,7 @@ class Fluent implements IDataSource
 		}
 
 		foreach ($data as $clause => $statement) {
-			if ($statement !== NULL) {
+			if ($statement !== null) {
 				$args[] = $clause;
 				if ($clause === $this->command && $this->flags) {
 					$args[] = implode(' ', array_keys($this->flags));
@@ -517,5 +518,4 @@ class Fluent implements IDataSource
 		}
 		$this->cursor = &$foo;
 	}
-
 }

src/Dibi/HashMap.php

@@ -33,7 +33,6 @@ abstract class HashMapBase
 	{
 		return $this->callback;
 	}
-
 }
 
 
@@ -44,7 +43,6 @@ abstract class HashMapBase
  */
 final class HashMap extends HashMapBase
 {
-
 	public function __set($nm, $val)
 	{
 		if ($nm == '') {
@@ -63,5 +61,4 @@ final class HashMap extends HashMapBase
 			return $this->$nm = call_user_func($this->getCallback(), $nm);
 		}
 	}
-
 }

src/Dibi/Helpers.php

@@ -15,13 +15,14 @@ class Helpers
 	/** @var array */
 	private static $types;
 
+
 	/**
 	 * Prints out a syntax highlighted version of the SQL command or Result.
 	 * @param  string|Result
 	 * @param  bool  return output instead of printing it?
 	 * @return string
 	 */
-	public static function dump($sql = NULL, $return = FALSE)
+	public static function dump($sql = null, $return = false)
 	{
 		ob_start();
 		if ($sql instanceof Result && PHP_SAPI === 'cli') {
@@ -38,7 +39,7 @@ class Helpers
 				echo $hasColors ? "\033[1;37m#row: $i\033[0m\n" : "#row: $i\n";
 				foreach ($row as $col => $val) {
 					$spaces = $maxLen - mb_strlen($col) + 2;
-					echo "$col" . str_repeat(' ', $spaces) .  "$val\n";
+					echo "$col" . str_repeat(' ', $spaces) . "$val\n";
 				}
 				echo "\n";
 			}
@@ -50,14 +51,14 @@ class Helpers
 				if ($i === 0) {
 					echo "\n<table class=\"dump\">\n<thead>\n\t<tr>\n\t\t<th>#row</th>\n";
 					foreach ($row as $col => $foo) {
-						echo "\t\t<th>" . htmlSpecialChars((string) $col) . "</th>\n";
+						echo "\t\t<th>" . htmlspecialchars((string) $col) . "</th>\n";
 					}
 					echo "\t</tr>\n</thead>\n<tbody>\n";
 				}
 
 				echo "\t<tr>\n\t\t<th>", $i, "</th>\n";
 				foreach ($row as $col) {
-					echo "\t\t<td>", htmlSpecialChars((string) $col), "</td>\n";
+					echo "\t\t<td>", htmlspecialchars((string) $col), "</td>\n";
 				}
 				echo "\t</tr>\n";
 			}
@@ -67,7 +68,7 @@ class Helpers
 				: "</tbody>\n</table>\n";
 
 		} else {
-			if ($sql === NULL) {
+			if ($sql === null) {
 				$sql = \dibi::$sql;
 			}
 
@@ -106,7 +107,7 @@ class Helpers
 				echo trim($sql) . "\n\n";
 
 			} else {
-				$sql = htmlSpecialChars($sql);
+				$sql = htmlspecialchars($sql);
 				$sql = preg_replace_callback($highlighter, function ($m) {
 					if (!empty($m[1])) { // comment
 						return '<em style="color:gray">' . $m[1] . '</em>';
@@ -135,12 +136,12 @@ class Helpers
 
 	/**
 	 * Finds the best suggestion.
-	 * @return string|NULL
+	 * @return string|null
 	 * @internal
 	 */
 	public static function getSuggestion(array $items, $value)
 	{
-		$best = NULL;
+		$best = null;
 		$min = (strlen($value) / 4 + 1) * 10 + .1;
 		foreach (array_unique($items, SORT_REGULAR) as $item) {
 			$item = is_object($item) ? $item->getName() : $item;
@@ -175,7 +176,7 @@ class Helpers
 	/**
 	 * Heuristic type detection.
 	 * @param  string
-	 * @return string|NULL
+	 * @return string|null
 	 * @internal
 	 */
 	public static function detectType($type)
@@ -197,7 +198,7 @@ class Helpers
 				return $val;
 			}
 		}
-		return NULL;
+		return null;
 	}
 
 
@@ -206,7 +207,7 @@ class Helpers
 	 */
 	public static function getTypeCache()
 	{
-		if (self::$types === NULL) {
+		if (self::$types === null) {
 			self::$types = new HashMap([__CLASS__, 'detectType']);
 		}
 		return self::$types;
@@ -238,7 +239,7 @@ class Helpers
 	 * Import SQL dump from file.
 	 * @return int  count of sql commands
 	 */
-	public static function loadFromFile(Connection $connection, $file, callable $onProgress = NULL)
+	public static function loadFromFile(Connection $connection, $file, callable $onProgress = null)
 	{
 		@set_time_limit(0); // intentionally @
 
@@ -252,7 +253,7 @@ class Helpers
 		$delimiter = ';';
 		$sql = '';
 		$driver = $connection->getDriver();
-		while (($s = fgets($handle)) !== FALSE) {
+		while (($s = fgets($handle)) !== false) {
 			$size += strlen($s);
 			if (strtoupper(substr($s, 0, 10)) === 'DELIMITER ') {
 				$delimiter = trim(substr($s, 10));
@@ -263,7 +264,7 @@ class Helpers
 				$sql = '';
 				$count++;
 				if ($onProgress) {
-					call_user_func($onProgress, $count, isset($stat['size']) ? $size * 100 / $stat['size'] : NULL);
+					call_user_func($onProgress, $count, isset($stat['size']) ? $size * 100 / $stat['size'] : null);
 				}
 
 			} else {
@@ -275,11 +276,27 @@ class Helpers
 			$driver->query($sql);
 			$count++;
 			if ($onProgress) {
-				call_user_func($onProgress, $count, isset($stat['size']) ? 100 : NULL);
+				call_user_func($onProgress, $count, isset($stat['size']) ? 100 : null);
 			}
 		}
 		fclose($handle);
 		return $count;
 	}
 
+
+	/**
+	 * @internal
+	 * @return string|int
+	 */
+	public static function intVal($value)
+	{
+		if (is_int($value)) {
+			return $value;
+		} elseif (is_string($value) && preg_match('#-?\d++\z#A', $value)) {
+			// support for long numbers - keep them unchanged
+			return is_float($number = $value * 1) ? $value : $number;
+		} else {
+			throw new Exception("Expected number, '$value' given.");
+		}
+	}
 }

src/Dibi/Literal.php

@@ -32,5 +32,4 @@ class Literal
 	{
 		return $this->value;
 	}
-
 }

src/Dibi/Loggers/FileLogger.php

@@ -24,7 +24,7 @@ class FileLogger
 	public $filter;
 
 
-	public function __construct($file, $filter = NULL)
+	public function __construct($file, $filter = null)
 	{
 		$this->file = $file;
 		$this->filter = $filter ? (int) $filter : Dibi\Event::QUERY;
@@ -72,5 +72,4 @@ class FileLogger
 		}
 		fclose($handle);
 	}
-
 }

src/Dibi/Loggers/FirePhpLogger.php

@@ -48,7 +48,7 @@ class FirePhpLogger
 	}
 
 
-	public function __construct($filter = NULL)
+	public function __construct($filter = null)
 	{
 		$this->filter = $filter ? (int) $filter : Dibi\Event::QUERY;
 	}
@@ -91,5 +91,4 @@ class FirePhpLogger
 		}
 		header("X-Wf-dibi-1-1-d$num: |$s|");
 	}
-
 }

src/Dibi/Reflection/Column.php

@@ -8,7 +8,6 @@
 namespace Dibi\Reflection;
 
 use Dibi;
-use Dibi\Type;
 
 
 /**
@@ -19,24 +18,24 @@ use Dibi\Type;
  * @property-read Table $table
  * @property-read string $type
  * @property-read mixed $nativeType
- * @property-read int|NULL $size
- * @property-read bool|NULL $unsigned
- * @property-read bool|NULL $nullable
- * @property-read bool|NULL $autoIncrement
+ * @property-read int|null $size
+ * @property-read bool|null $unsigned
+ * @property-read bool|null $nullable
+ * @property-read bool|null $autoIncrement
  * @property-read mixed $default
  */
 class Column
 {
 	use Dibi\Strict;
 
-	/** @var Dibi\Reflector|NULL when created by Result */
+	/** @var Dibi\Reflector|null when created by Result */
 	private $reflector;
 
 	/** @var array (name, nativetype, [table], [fullname], [size], [nullable], [default], [autoincrement], [vendor]) */
 	private $info;
 
 
-	public function __construct(Dibi\Reflector $reflector = NULL, array $info)
+	public function __construct(Dibi\Reflector $reflector = null, array $info)
 	{
 		$this->reflector = $reflector;
 		$this->info = $info;
@@ -57,7 +56,7 @@ class Column
 	 */
 	public function getFullName()
 	{
-		return isset($this->info['fullname']) ? $this->info['fullname'] : NULL;
+		return isset($this->info['fullname']) ? $this->info['fullname'] : null;
 	}
 
 
@@ -76,18 +75,18 @@ class Column
 	public function getTable()
 	{
 		if (empty($this->info['table']) || !$this->reflector) {
-			throw new Dibi\Exception("Table is unknown or not available.");
+			throw new Dibi\Exception('Table is unknown or not available.');
 		}
 		return new Table($this->reflector, ['name' => $this->info['table']]);
 	}
 
 
 	/**
-	 * @return string|NULL
+	 * @return string|null
 	 */
 	public function getTableName()
 	{
-		return isset($this->info['table']) && $this->info['table'] != NULL ? $this->info['table'] : NULL; // intentionally ==
+		return isset($this->info['table']) && $this->info['table'] != null ? $this->info['table'] : null; // intentionally ==
 	}
 
 
@@ -110,38 +109,38 @@ class Column
 
 
 	/**
-	 * @return int|NULL
+	 * @return int|null
 	 */
 	public function getSize()
 	{
-		return isset($this->info['size']) ? (int) $this->info['size'] : NULL;
+		return isset($this->info['size']) ? (int) $this->info['size'] : null;
 	}
 
 
 	/**
-	 * @return bool|NULL
+	 * @return bool|null
 	 */
 	public function isUnsigned()
 	{
-		return isset($this->info['unsigned']) ? (bool) $this->info['unsigned'] : NULL;
+		return isset($this->info['unsigned']) ? (bool) $this->info['unsigned'] : null;
 	}
 
 
 	/**
-	 * @return bool|NULL
+	 * @return bool|null
 	 */
 	public function isNullable()
 	{
-		return isset($this->info['nullable']) ? (bool) $this->info['nullable'] : NULL;
+		return isset($this->info['nullable']) ? (bool) $this->info['nullable'] : null;
 	}
 
 
 	/**
-	 * @return bool|NULL
+	 * @return bool|null
 	 */
 	public function isAutoIncrement()
 	{
-		return isset($this->info['autoincrement']) ? (bool) $this->info['autoincrement'] : NULL;
+		return isset($this->info['autoincrement']) ? (bool) $this->info['autoincrement'] : null;
 	}
 
 
@@ -150,7 +149,7 @@ class Column
 	 */
 	public function getDefault()
 	{
-		return isset($this->info['default']) ? $this->info['default'] : NULL;
+		return isset($this->info['default']) ? $this->info['default'] : null;
 	}
 
 
@@ -160,7 +159,6 @@ class Column
 	 */
 	public function getVendorInfo($key)
 	{
-		return isset($this->info['vendor'][$key]) ? $this->info['vendor'][$key] : NULL;
+		return isset($this->info['vendor'][$key]) ? $this->info['vendor'][$key] : null;
 	}
-
 }

src/Dibi/Reflection/Database.php

@@ -104,12 +104,11 @@ class Database
 	 */
 	protected function init()
 	{
-		if ($this->tables === NULL) {
+		if ($this->tables === null) {
 			$this->tables = [];
 			foreach ($this->reflector->getTables() as $info) {
 				$this->tables[strtolower($info['name'])] = new Table($this->reflector, $info);
 			}
 		}
 	}
-
 }

src/Dibi/Reflection/ForeignKey.php

@@ -50,5 +50,4 @@ class ForeignKey
 	{
 		return $this->references;
 	}
-
 }

src/Dibi/Reflection/Index.php

@@ -66,5 +66,4 @@ class Index
 	{
 		return !empty($this->info['primary']);
 	}
-
 }

src/Dibi/Reflection/Result.php

@@ -50,7 +50,7 @@ class Result
 	 * @param  bool
 	 * @return string[]
 	 */
-	public function getColumnNames($fullNames = FALSE)
+	public function getColumnNames($fullNames = false)
 	{
 		$this->initColumns();
 		$res = [];
@@ -94,13 +94,12 @@ class Result
 	 */
 	protected function initColumns()
 	{
-		if ($this->columns === NULL) {
+		if ($this->columns === null) {
 			$this->columns = [];
-			$reflector = $this->driver instanceof Dibi\Reflector ? $this->driver : NULL;
+			$reflector = $this->driver instanceof Dibi\Reflector ? $this->driver : null;
 			foreach ($this->driver->getResultColumns() as $info) {
 				$this->columns[] = $this->names[strtolower($info['name'])] = new Column($reflector, $info);
 			}
 		}
 	}
-
 }

src/Dibi/Reflection/Table.php

@@ -160,7 +160,7 @@ class Table
 	 */
 	protected function initColumns()
 	{
-		if ($this->columns === NULL) {
+		if ($this->columns === null) {
 			$this->columns = [];
 			foreach ($this->reflector->getColumns($this->name) as $info) {
 				$this->columns[strtolower($info['name'])] = new Column($this->reflector, $info);
@@ -174,7 +174,7 @@ class Table
 	 */
 	protected function initIndexes()
 	{
-		if ($this->indexes === NULL) {
+		if ($this->indexes === null) {
 			$this->initColumns();
 			$this->indexes = [];
 			foreach ($this->reflector->getIndexes($this->name) as $info) {
@@ -197,5 +197,4 @@ class Table
 	{
 		throw new Dibi\NotImplementedException;
 	}
-
 }

src/Dibi/Result.php

@@ -40,7 +40,7 @@ class Result implements IDataSource
 	private $meta;
 
 	/** @var bool  Already fetched? Used for allowance for first seek(0) */
-	private $fetched = FALSE;
+	private $fetched = false;
 
 	/** @var string  returned object class */
 	private $rowClass = 'Dibi\Row';
@@ -78,9 +78,9 @@ class Result implements IDataSource
 	 */
 	final public function free()
 	{
-		if ($this->driver !== NULL) {
+		if ($this->driver !== null) {
 			$this->driver->free();
-			$this->driver = $this->meta = NULL;
+			$this->driver = $this->meta = null;
 		}
 	}
 
@@ -92,7 +92,7 @@ class Result implements IDataSource
 	 */
 	final public function getResultDriver()
 	{
-		if ($this->driver === NULL) {
+		if ($this->driver === null) {
 			throw new \RuntimeException('Result-set was released from memory.');
 		}
 
@@ -106,12 +106,14 @@ class Result implements IDataSource
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int      the 0-based cursor pos to seek to
-	 * @return bool     TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool     true on success, false if unable to seek to specified record
 	 * @throws Exception
 	 */
 	final public function seek($row)
 	{
-		return ($row !== 0 || $this->fetched) ? (bool) $this->getResultDriver()->seek($row) : TRUE;
+		return ($row != 0 || $this->fetched) // intentionally ==
+			? (bool) $this->getResultDriver()->seek($row)
+			: true;
 	}
 
 
@@ -184,15 +186,15 @@ class Result implements IDataSource
 	/**
 	 * Fetches the row at current position, process optional type conversion.
 	 * and moves the internal cursor to the next position
-	 * @return Row|FALSE
+	 * @return Row|false
 	 */
 	final public function fetch()
 	{
-		$row = $this->getResultDriver()->fetch(TRUE);
+		$row = $this->getResultDriver()->fetch(true);
 		if (!is_array($row)) {
-			return FALSE;
+			return false;
 		}
-		$this->fetched = TRUE;
+		$this->fetched = true;
 		$this->normalize($row);
 		if ($this->rowFactory) {
 			return call_user_func($this->rowFactory, $row);
@@ -205,15 +207,15 @@ class Result implements IDataSource
 
 	/**
 	 * Like fetch(), but returns only first field.
-	 * @return mixed value on success, FALSE if no next record
+	 * @return mixed value on success, false if no next record
 	 */
 	final public function fetchSingle()
 	{
-		$row = $this->getResultDriver()->fetch(TRUE);
+		$row = $this->getResultDriver()->fetch(true);
 		if (!is_array($row)) {
-			return FALSE;
+			return false;
 		}
-		$this->fetched = TRUE;
+		$this->fetched = true;
 		$this->normalize($row);
 		return reset($row);
 	}
@@ -225,10 +227,10 @@ class Result implements IDataSource
 	 * @param  int  limit
 	 * @return Row[]
 	 */
-	final public function fetchAll($offset = NULL, $limit = NULL)
+	final public function fetchAll($offset = null, $limit = null)
 	{
-		$limit = $limit === NULL ? -1 : (int) $limit;
-		$this->seek((int) $offset);
+		$limit = $limit === null ? -1 : Helpers::intVal($limit);
+		$this->seek($offset);
 		$row = $this->fetch();
 		if (!$row) {
 			return [];  // empty result set
@@ -260,7 +262,7 @@ class Result implements IDataSource
 	 */
 	final public function fetchAssoc($assoc)
 	{
-		if (strpos($assoc, ',') !== FALSE) {
+		if (strpos($assoc, ',') !== false) {
 			return $this->oldFetchAssoc($assoc);
 		}
 
@@ -270,12 +272,12 @@ class Result implements IDataSource
 			return [];  // empty result set
 		}
 
-		$data = NULL;
+		$data = null;
 		$assoc = preg_split('#(\[\]|->|=|\|)#', $assoc, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
 
 		// check columns
 		foreach ($assoc as $as) {
-			// offsetExists ignores NULL in PHP 5.2.1, isset() surprisingly NULL accepts
+			// offsetExists ignores null in PHP 5.2.1, isset() surprisingly null accepts
 			if ($as !== '[]' && $as !== '=' && $as !== '->' && $as !== '|' && !property_exists($row, $as)) {
 				throw new \InvalidArgumentException("Unknown column '$as' in associative descriptor.");
 			}
@@ -303,10 +305,10 @@ class Result implements IDataSource
 					continue 2;
 
 				} elseif ($as === '->') { // "object" node
-					if ($x === NULL) {
+					if ($x === null) {
 						$x = clone $row;
 						$x = &$x->{$assoc[$i + 1]};
-						$x = NULL; // prepare child node
+						$x = null; // prepare child node
 					} else {
 						$x = &$x->{$assoc[$i + 1]};
 					}
@@ -316,10 +318,9 @@ class Result implements IDataSource
 				}
 			}
 
-			if ($x === NULL) { // build leaf
+			if ($x === null) { // build leaf
 				$x = $row;
 			}
-
 		} while ($row = $this->fetch());
 
 		unset($x);
@@ -338,7 +339,7 @@ class Result implements IDataSource
 			return [];  // empty result set
 		}
 
-		$data = NULL;
+		$data = null;
 		$assoc = explode(',', $assoc);
 
 		// strip leading = and @
@@ -363,19 +364,19 @@ class Result implements IDataSource
 					$x = &$x[];
 
 				} elseif ($as === '=') { // "record" node
-					if ($x === NULL) {
+					if ($x === null) {
 						$x = $row->toArray();
-						$x = &$x[ $assoc[$i + 1] ];
-						$x = NULL; // prepare child node
+						$x = &$x[$assoc[$i + 1]];
+						$x = null; // prepare child node
 					} else {
-						$x = &$x[ $assoc[$i + 1] ];
+						$x = &$x[$assoc[$i + 1]];
 					}
 
 				} elseif ($as === '@') { // "object" node
-					if ($x === NULL) {
+					if ($x === null) {
 						$x = clone $row;
 						$x = &$x->{$assoc[$i + 1]};
-						$x = NULL; // prepare child node
+						$x = null; // prepare child node
 					} else {
 						$x = &$x->{$assoc[$i + 1]};
 					}
@@ -385,14 +386,13 @@ class Result implements IDataSource
 				}
 			}
 
-			if ($x === NULL) { // build leaf
+			if ($x === null) { // build leaf
 				if ($leaf === '=') {
 					$x = $row->toArray();
 				} else {
 					$x = $row;
 				}
 			}
-
 		} while ($row = $this->fetch());
 
 		unset($x);
@@ -407,7 +407,7 @@ class Result implements IDataSource
 	 * @return array
 	 * @throws \InvalidArgumentException
 	 */
-	final public function fetchPairs($key = NULL, $value = NULL)
+	final public function fetchPairs($key = null, $value = null)
 	{
 		$this->seek(0);
 		$row = $this->fetch();
@@ -417,8 +417,8 @@ class Result implements IDataSource
 
 		$data = [];
 
-		if ($value === NULL) {
-			if ($key !== NULL) {
+		if ($value === null) {
+			if ($key !== null) {
 				throw new \InvalidArgumentException('Either none or both columns must be specified.');
 			}
 
@@ -439,7 +439,7 @@ class Result implements IDataSource
 				throw new \InvalidArgumentException("Unknown value column '$value'.");
 			}
 
-			if ($key === NULL) { // indexed-array
+			if ($key === null) { // indexed-array
 				do {
 					$data[] = $row[$value];
 				} while ($row = $this->fetch());
@@ -452,7 +452,7 @@ class Result implements IDataSource
 		}
 
 		do {
-			$data[ (string) $row[$key] ] = $row[$value];
+			$data[(string) $row[$key]] = $row[$value];
 		} while ($row = $this->fetch());
 
 		return $data;
@@ -486,7 +486,7 @@ class Result implements IDataSource
 	private function normalize(array &$row)
 	{
 		foreach ($this->types as $key => $type) {
-			if (!isset($row[$key])) { // NULL
+			if (!isset($row[$key])) { // null
 				continue;
 			}
 			$value = $row[$key];
@@ -501,7 +501,7 @@ class Result implements IDataSource
 			} elseif ($type === Type::FLOAT) {
 				$value = ltrim((string) $value, '0');
 				$p = strpos($value, '.');
-				if ($p !== FALSE) {
+				if ($p !== false) {
 					$value = rtrim(rtrim($value, '0'), '.');
 				}
 				if ($value === '' || $value[0] === '.') {
@@ -515,11 +515,11 @@ class Result implements IDataSource
 				$row[$key] = ((bool) $value) && $value !== 'f' && $value !== 'F';
 
 			} elseif ($type === Type::DATETIME || $type === Type::DATE || $type === Type::TIME) {
-				if ($value && substr((string) $value, 0, 3) !== '000') { // '', NULL, FALSE, '0000-00-00', ...
+				if ($value && substr((string) $value, 0, 3) !== '000') { // '', null, false, '0000-00-00', ...
 					$value = new DateTime($value);
 					$row[$key] = empty($this->formats[$type]) ? $value : $value->format($this->formats[$type]);
 				} else {
-					$row[$key] = NULL;
+					$row[$key] = null;
 				}
 
 			} elseif ($type === Type::TIME_INTERVAL) {
@@ -553,14 +553,14 @@ class Result implements IDataSource
 	 */
 	final public function getType($col)
 	{
-		return isset($this->types[$col]) ? $this->types[$col] : NULL;
+		return isset($this->types[$col]) ? $this->types[$col] : null;
 	}
 
 
 	/**
 	 * Sets date format.
 	 * @param  string
-	 * @param  string|NULL  format
+	 * @param  string|null  format
 	 * @return self
 	 */
 	final public function setFormat($type, $format)
@@ -572,11 +572,11 @@ class Result implements IDataSource
 
 	/**
 	 * Returns data format.
-	 * @return string|NULL
+	 * @return string|null
 	 */
 	final public function getFormat($type)
 	{
-		return isset($this->formats[$type]) ? $this->formats[$type] : NULL;
+		return isset($this->formats[$type]) ? $this->formats[$type] : null;
 	}
 
 
@@ -589,7 +589,7 @@ class Result implements IDataSource
 	 */
 	public function getInfo()
 	{
-		if ($this->meta === NULL) {
+		if ($this->meta === null) {
 			$this->meta = new Reflection\Result($this->getResultDriver());
 		}
 		return $this->meta;
@@ -616,5 +616,4 @@ class Result implements IDataSource
 	{
 		echo Helpers::dump($this);
 	}
-
 }

src/Dibi/ResultIterator.php

@@ -104,5 +104,4 @@ class ResultIterator implements \Iterator, \Countable
 	{
 		return $this->result->getRowCount();
 	}
-
 }

src/Dibi/Row.php

@@ -13,7 +13,6 @@ namespace Dibi;
  */
 class Row implements \ArrayAccess, \IteratorAggregate, \Countable
 {
-
 	public function __construct($arr)
 	{
 		foreach ($arr as $k => $v) {
@@ -34,16 +33,16 @@ class Row implements \ArrayAccess, \IteratorAggregate, \Countable
 	 * @param  string format
 	 * @return \DateTime
 	 */
-	public function asDateTime($key, $format = NULL)
+	public function asDateTime($key, $format = null)
 	{
 		$time = $this[$key];
 		if (!$time instanceof DateTime) {
-			if (!$time || substr((string) $time, 0, 3) === '000') { // '', NULL, FALSE, '0000-00-00', ...
-				return NULL;
+			if (!$time || substr((string) $time, 0, 3) === '000') { // '', null, false, '0000-00-00', ...
+				return null;
 			}
 			$time = new DateTime($time);
 		}
-		return $format === NULL ? $time : $time->format($format);
+		return $format === null ? $time : $time->format($format);
 	}
 
 
@@ -91,5 +90,4 @@ class Row implements \ArrayAccess, \IteratorAggregate, \Countable
 	{
 		unset($this->$nm);
 	}
-
 }

src/Dibi/Strict.php

@@ -88,7 +88,7 @@ trait Strict
 	 */
 	public function __isset($name)
 	{
-		return FALSE;
+		return false;
 	}
 
 
@@ -108,29 +108,29 @@ trait Strict
 	 * @param  callable
 	 * @return mixed
 	 */
-	public static function extensionMethod($name, $callback = NULL)
+	public static function extensionMethod($name, $callback = null)
 	{
-		if (strpos($name, '::') === FALSE) {
+		if (strpos($name, '::') === false) {
 			$class = get_called_class();
 		} else {
 			list($class, $name) = explode('::', $name);
 			$class = (new ReflectionClass($class))->getName();
 		}
 
-		if (self::$extMethods === NULL) { // for backwards compatibility
+		if (self::$extMethods === null) { // for backwards compatibility
 			$list = get_defined_functions();
 			foreach ($list['user'] as $fce) {
 				$pair = explode('_prototype_', $fce);
 				if (count($pair) === 2) {
 					trigger_error("Extension method defined as $fce() is deprecated, use $class::extensionMethod('$name', ...).", E_USER_DEPRECATED);
 					self::$extMethods[$pair[1]][(new ReflectionClass($pair[0]))->getName()] = $fce;
-					self::$extMethods[$pair[1]][''] = NULL;
+					self::$extMethods[$pair[1]][''] = null;
 				}
 			}
 		}
 
-		$list = & self::$extMethods[strtolower($name)];
-		if ($callback === NULL) { // getter
+		$list = &self::$extMethods[strtolower($name)];
+		if ($callback === null) { // getter
 			$cache = &$list[''][$class];
 			if (isset($cache)) {
 				return $cache;
@@ -141,12 +141,11 @@ trait Strict
 					return $cache = $list[$cl];
 				}
 			}
-			return $cache = FALSE;
+			return $cache = false;
 
 		} else { // setter
 			$list[$class] = $callback;
-			$list[''] = NULL;
+			$list[''] = null;
 		}
 	}
-
 }

src/Dibi/Translator.php

@@ -31,7 +31,7 @@ final class Translator
 	private $errors;
 
 	/** @var bool */
-	private $comment = FALSE;
+	private $comment = false;
 
 	/** @var int */
 	private $ifLevel = 0;
@@ -71,8 +71,8 @@ final class Translator
 		}
 		$this->args = $args;
 
-		$commandIns = NULL;
-		$lastArr = NULL;
+		$commandIns = null;
+		$lastArr = null;
 		$cursor = &$this->cursor;
 		$comment = &$this->comment;
 
@@ -127,7 +127,7 @@ final class Translator
 
 			if (is_array($arg) && is_string(key($arg))) {
 				// associative array -> autoselect between SET or VALUES & LIST
-				if ($commandIns === NULL) {
+				if ($commandIns === null) {
 					$commandIns = strtoupper(substr(ltrim($this->args[0]), 0, 6));
 					$commandIns = $commandIns === 'INSERT' || $commandIns === 'REPLAC';
 					$sql[] = $this->formatValue($arg, $commandIns ? 'v' : 'a');
@@ -142,7 +142,7 @@ final class Translator
 			}
 
 			// default processing
-			$sql[] = $this->formatValue($arg, FALSE);
+			$sql[] = $this->formatValue($arg, false);
 		} // while
 
 
@@ -157,7 +157,7 @@ final class Translator
 		}
 
 		// apply limit
-		if ($this->limit !== NULL || $this->offset !== NULL) {
+		if ($this->limit !== null || $this->offset !== null) {
 			$this->driver->applyLimit($sql, $this->limit, $this->offset);
 		}
 
@@ -196,7 +196,7 @@ final class Translator
 							$pair = explode('%', $k, 2); // split into identifier & modifier
 							$k = $this->identifiers->{$pair[0]} . ' ';
 							if (!isset($pair[1])) {
-								$v = $this->formatValue($v, FALSE);
+								$v = $this->formatValue($v, false);
 								$vx[] = $k . ($v === 'NULL' ? 'IS ' : '= ') . $v;
 
 							} elseif ($pair[1] === 'ex') {
@@ -206,7 +206,7 @@ final class Translator
 								$v = $this->formatValue($v, $pair[1]);
 								if ($pair[1] === 'l' || $pair[1] === 'in') {
 									$op = 'IN ';
-								} elseif (strpos($pair[1], 'like') !== FALSE) {
+								} elseif (strpos($pair[1], 'like') !== false) {
 									$op = 'LIKE ';
 								} elseif ($v === 'NULL') {
 									$op = 'IS ';
@@ -238,7 +238,7 @@ final class Translator
 					foreach ($value as $k => $v) {
 						$pair = explode('%', $k, 2); // split into identifier & modifier
 						$vx[] = $this->identifiers->{$pair[0]} . '='
-							. $this->formatValue($v, isset($pair[1]) ? $pair[1] : (is_array($v) ? 'ex' : FALSE));
+							. $this->formatValue($v, isset($pair[1]) ? $pair[1] : (is_array($v) ? 'ex' : false));
 					}
 					return implode(', ', $vx);
 
@@ -247,7 +247,7 @@ final class Translator
 				case 'l': // (val, val, ...)
 					foreach ($value as $k => $v) {
 						$pair = explode('%', (string) $k, 2); // split into identifier & modifier
-						$vx[] = $this->formatValue($v, isset($pair[1]) ? $pair[1] : (is_array($v) ? 'ex' : FALSE));
+						$vx[] = $this->formatValue($v, isset($pair[1]) ? $pair[1] : (is_array($v) ? 'ex' : false));
 					}
 					return '(' . (($vx || $modifier === 'l') ? implode(', ', $vx) : 'NULL') . ')';
 
@@ -256,7 +256,7 @@ final class Translator
 					foreach ($value as $k => $v) {
 						$pair = explode('%', $k, 2); // split into identifier & modifier
 						$kx[] = $this->identifiers->{$pair[0]};
-						$vx[] = $this->formatValue($v, isset($pair[1]) ? $pair[1] : (is_array($v) ? 'ex' : FALSE));
+						$vx[] = $this->formatValue($v, isset($pair[1]) ? $pair[1] : (is_array($v) ? 'ex' : false));
 					}
 					return '(' . implode(', ', $kx) . ') VALUES (' . implode(', ', $vx) . ')';
 
@@ -277,7 +277,7 @@ final class Translator
 						$pair = explode('%', $k, 2); // split into identifier & modifier
 						$kx[] = $this->identifiers->{$pair[0]};
 						foreach ($v as $k2 => $v2) {
-							$vx[$k2][] = $this->formatValue($v2, isset($pair[1]) ? $pair[1] : (is_array($v2) ? 'ex' : FALSE));
+							$vx[$k2][] = $this->formatValue($v2, isset($pair[1]) ? $pair[1] : (is_array($v2) ? 'ex' : false));
 						}
 					}
 					foreach ($vx as $k => $v) {
@@ -313,10 +313,10 @@ final class Translator
 
 		// with modifier procession
 		if ($modifier) {
-			if ($value !== NULL && !is_scalar($value)) {  // array is already processed
+			if ($value !== null && !is_scalar($value)) {  // array is already processed
 				if ($value instanceof Literal && ($modifier === 'sql' || $modifier === 'SQL')) {
 					$modifier = 'SQL';
-				} elseif (($value instanceof \DateTime || $value instanceof \DateTimeInterface) && ($modifier === 'd' || $modifier === 't')) {
+				} elseif (($value instanceof \DateTime || $value instanceof \DateTimeInterface) && ($modifier === 'd' || $modifier === 't' || $modifier === 'dt')) {
 					// continue
 				} else {
 					$type = is_object($value) ? get_class($value) : gettype($value);
@@ -326,59 +326,65 @@ final class Translator
 
 			switch ($modifier) {
 				case 's':  // string
-					return $value === NULL ? 'NULL' : $this->driver->escapeText((string) $value);
+					return $value === null ? 'NULL' : $this->driver->escapeText((string) $value);
 
 				case 'bin':// binary
-					return $value === NULL ? 'NULL' : $this->driver->escapeBinary($value);
+					return $value === null ? 'NULL' : $this->driver->escapeBinary($value);
 
 				case 'b':  // boolean
-					return $value === NULL ? 'NULL' : $this->driver->escapeBool($value);
+					return $value === null ? 'NULL' : $this->driver->escapeBool($value);
 
-				case 'sN': // string or NULL
+				case 'sN': // string or null
 				case 'sn':
 					return $value == '' ? 'NULL' : $this->driver->escapeText((string) $value); // notice two equal signs
 
 				case 'in': // deprecated
 					trigger_error('Modifier %in is deprecated, use %iN.', E_USER_DEPRECATED);
-					// intentionally break omitted
-
-				case 'iN': // signed int or NULL
+					// break omitted
+				case 'iN': // signed int or null
 					if ($value == '') {
-						$value = NULL;
+						$value = null;
 					}
-					// intentionally break omitted
-
+					// break omitted
 				case 'i':  // signed int
 				case 'u':  // unsigned int, ignored
-					if ($value === NULL) {
+					if ($value === null) {
 						return 'NULL';
-					} elseif (is_string($value) && preg_match('#[+-]?\d++(?:e\d+)?\z#A', $value)) {
-						return $value; // support for long numbers - keep them unchanged
-					} elseif (is_string($value) && substr($value, 1, 1) === 'x' && is_numeric($value)) {
-						trigger_error('Support for hex strings has been deprecated.', E_USER_DEPRECATED);
-						return (string) hexdec($value);
+					} elseif (is_string($value)) {
+						if (preg_match('#[+-]?\d++(?:e\d+)?\z#A', $value)) {
+							return $value; // support for long numbers - keep them unchanged
+						} elseif (substr($value, 1, 1) === 'x' && is_numeric($value)) {
+							trigger_error('Support for hex strings has been deprecated.', E_USER_DEPRECATED);
+							return (string) hexdec($value);
+						} else {
+							throw new Exception("Expected number, '$value' given.");
+						}
 					} else {
 						return (string) (int) $value;
 					}
-
+					// break omitted
 				case 'f':  // float
-					if ($value === NULL) {
+					if ($value === null) {
 						return 'NULL';
-					} elseif (is_string($value) && is_numeric($value) && substr($value, 1, 1) !== 'x') {
-						return $value; // support for extreme numbers - keep them unchanged
+					} elseif (is_string($value)) {
+						if (is_numeric($value) && substr($value, 1, 1) !== 'x') {
+							return $value; // support for long numbers - keep them unchanged
+						} else {
+							throw new Exception("Expected number, '$value' given.");
+						}
 					} else {
 						return rtrim(rtrim(number_format($value + 0, 10, '.', ''), '0'), '.');
 					}
-
+					// break omitted
 				case 'd':  // date
 				case 't':  // datetime
 				case 'dt': // datetime
-					if ($value === NULL) {
+					if ($value === null) {
 						return 'NULL';
 					} else {
 						return $modifier === 'd' ? $this->driver->escapeDate($value) : $this->driver->escapeDateTime($value);
 					}
-
+					// break omitted
 				case 'by':
 				case 'n':  // composed identifier name
 					return $this->identifiers->$value;
@@ -443,7 +449,7 @@ final class Translator
 		} elseif (is_bool($value)) {
 			return $this->driver->escapeBool($value);
 
-		} elseif ($value === NULL) {
+		} elseif ($value === null) {
 			return 'NULL';
 
 		} elseif ($value instanceof \DateTime || $value instanceof \DateTimeInterface) {
@@ -452,6 +458,9 @@ final class Translator
 		} elseif ($value instanceof Literal) {
 			return (string) $value;
 
+		} elseif ($value instanceof Expression) {
+			return call_user_func_array([$this->connection, 'translate'], $value->getValues());
+
 		} else {
 			$type = is_object($value) ? get_class($value) : gettype($value);
 			return $this->errors[] = "**Unexpected $type**";
@@ -487,7 +496,7 @@ final class Translator
 			}
 
 			$cursor++;
-			return $this->formatValue($this->args[$cursor - 1], FALSE);
+			return $this->formatValue($this->args[$cursor - 1], false);
 		}
 
 		if (!empty($matches[10])) { // modifier
@@ -504,7 +513,7 @@ final class Translator
 				if (!$this->comment && !$this->args[$cursor - 1]) {
 					// open comment
 					$this->ifLevelStart = $this->ifLevel;
-					$this->comment = TRUE;
+					$this->comment = true;
 					return '/*';
 				}
 				return '';
@@ -512,11 +521,11 @@ final class Translator
 			} elseif ($mod === 'else') {
 				if ($this->ifLevelStart === $this->ifLevel) {
 					$this->ifLevelStart = 0;
-					$this->comment = FALSE;
+					$this->comment = false;
 					return '*/';
 				} elseif (!$this->comment) {
 					$this->ifLevelStart = $this->ifLevel;
-					$this->comment = TRUE;
+					$this->comment = true;
 					return '/*';
 				}
 
@@ -525,7 +534,7 @@ final class Translator
 				if ($this->ifLevelStart === $this->ifLevel + 1) {
 					// close comment
 					$this->ifLevelStart = 0;
-					$this->comment = FALSE;
+					$this->comment = false;
 					return '*/';
 				}
 				return '';
@@ -536,21 +545,21 @@ final class Translator
 
 			} elseif ($mod === 'lmt') { // apply limit
 				$arg = $this->args[$cursor++];
-				if ($arg === NULL) {
+				if ($arg === null) {
 				} elseif ($this->comment) {
 					return "(limit $arg)";
 				} else {
-					$this->limit = (int) $arg;
+					$this->limit = Helpers::intVal($arg);
 				}
 				return '';
 
 			} elseif ($mod === 'ofs') { // apply offset
 				$arg = $this->args[$cursor++];
-				if ($arg === NULL) {
+				if ($arg === null) {
 				} elseif ($this->comment) {
 					return "(offset $arg)";
 				} else {
-					$this->offset = (int) $arg;
+					$this->offset = Helpers::intVal($arg);
 				}
 				return '';
 
@@ -583,7 +592,7 @@ final class Translator
 		if ($matches[8]) { // SQL identifier substitution
 			$m = substr($matches[8], 0, -1);
 			$m = $this->connection->getSubstitutes()->$m;
-			return $matches[9] == '' ? $this->formatValue($m, FALSE) : $m . $matches[9]; // value or identifier
+			return $matches[9] == '' ? $this->formatValue($m, false) : $m . $matches[9]; // value or identifier
 		}
 
 		throw new \Exception('this should be never executed');
@@ -607,5 +616,4 @@ final class Translator
 		}
 		return implode('.', $parts);
 	}
-
 }

src/Dibi/Type.php

@@ -24,9 +24,9 @@ class Type
 		TIME = 't',
 		TIME_INTERVAL = 'ti';
 
+
 	final public function __construct()
 	{
 		throw new \LogicException('Cannot instantiate static class ' . __CLASS__);
 	}
-
 }

src/Dibi/dibi.php

@@ -22,8 +22,8 @@ class dibi
 
 	/** version */
 	const
-		VERSION = '3.1.0',
-		REVISION = 'released on 2017-06-09';
+		VERSION = '3.1.1',
+		REVISION = 'released on 2018-03-09';
 
 	/** sorting order */
 	const
@@ -49,12 +49,6 @@ class dibi
 		FIELD_DATETIME = Type::DATETIME,
 		FIELD_TIME = Type::TIME;
 
-	/** @var Dibi\Connection[]  Connection registry storage for DibiConnection objects */
-	private static $registry = [];
-
-	/** @var Dibi\Connection  Current connection */
-	private static $connection;
-
 	/** @var string  Last SQL command @see dibi::query() */
 	public static $sql;
 
@@ -70,6 +64,12 @@ class dibi
 	/** @var string  Default dibi driver */
 	public static $defaultDriver = 'mysqli';
 
+	/** @var Dibi\Connection[]  Connection registry storage for DibiConnection objects */
+	private static $registry = [];
+
+	/** @var Dibi\Connection  Current connection */
+	private static $connection;
+
 
 	/**
 	 * Static class - cannot be instantiated.
@@ -107,12 +107,12 @@ class dibi
 
 
 	/**
-	 * Returns TRUE when connection was established.
+	 * Returns true when connection was established.
 	 * @return bool
 	 */
 	public static function isConnected()
 	{
-		return (self::$connection !== NULL) && self::$connection->isConnected();
+		return (self::$connection !== null) && self::$connection->isConnected();
 	}
 
 
@@ -122,10 +122,10 @@ class dibi
 	 * @return Dibi\Connection
 	 * @throws Dibi\Exception
 	 */
-	public static function getConnection($name = NULL)
+	public static function getConnection($name = null)
 	{
-		if ($name === NULL) {
-			if (self::$connection === NULL) {
+		if ($name === null) {
+			if (self::$connection === null) {
 				throw new Dibi\Exception('Dibi is not connected to database.');
 			}
 
@@ -277,12 +277,11 @@ class dibi
 
 
 	/**
-	 * Gets the number of affected rows. Alias for getAffectedRows().
-	 * @return int  number of rows
-	 * @throws Dibi\Exception
+	 * @deprecated
 	 */
 	public static function affectedRows()
 	{
+		trigger_error(__METHOD__ . '() is deprecated, use getAffectedRows()', E_USER_DEPRECATED);
 		return self::getConnection()->getAffectedRows();
 	}
 
@@ -294,20 +293,18 @@ class dibi
 	 * @return int
 	 * @throws Dibi\Exception
 	 */
-	public static function getInsertId($sequence = NULL)
+	public static function getInsertId($sequence = null)
 	{
 		return self::getConnection()->getInsertId($sequence);
 	}
 
 
 	/**
-	 * Retrieves the ID generated for an AUTO_INCREMENT column. Alias for getInsertId().
-	 * @param  string     optional sequence name
-	 * @return int
-	 * @throws Dibi\Exception
+	 * @deprecated
 	 */
-	public static function insertId($sequence = NULL)
+	public static function insertId($sequence = null)
 	{
+		trigger_error(__METHOD__ . '() is deprecated, use getInsertId()', E_USER_DEPRECATED);
 		return self::getConnection()->getInsertId($sequence);
 	}
 
@@ -318,19 +315,19 @@ class dibi
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public static function begin($savepoint = NULL)
+	public static function begin($savepoint = null)
 	{
 		self::getConnection()->begin($savepoint);
 	}
 
 
 	/**
-	 * Commits statements in a transaction - Monostate for Dibi\Connection::commit($savepoint = NULL).
+	 * Commits statements in a transaction - Monostate for Dibi\Connection::commit($savepoint = null).
 	 * @param  string  optional savepoint name
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public static function commit($savepoint = NULL)
+	public static function commit($savepoint = null)
 	{
 		self::getConnection()->commit($savepoint);
 	}
@@ -342,7 +339,7 @@ class dibi
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public static function rollback($savepoint = NULL)
+	public static function rollback($savepoint = null)
 	{
 		self::getConnection()->rollback($savepoint);
 	}
@@ -446,9 +443,8 @@ class dibi
 	 * @param  bool  return output instead of printing it?
 	 * @return string
 	 */
-	public static function dump($sql = NULL, $return = FALSE)
+	public static function dump($sql = null, $return = false)
 	{
 		return Dibi\Helpers::dump($sql, $return);
 	}
-
 }

src/Dibi/exceptions.php

@@ -13,7 +13,7 @@ namespace Dibi;
  */
 class Exception extends \Exception
 {
-	/** @var string|NULL */
+	/** @var string|null */
 	private $sql;
 
 
@@ -22,10 +22,11 @@ class Exception extends \Exception
 	 * @param  string  Message describing the exception
 	 * @param  mixed
 	 * @param  string  SQL command
+	 * @param  \Exception
 	 */
-	public function __construct($message = '', $code = 0, $sql = NULL)
+	public function __construct($message = '', $code = 0, $sql = null, \Exception $previous = null)
 	{
-		parent::__construct($message);
+		parent::__construct($message, 0, $previous);
 		$this->code = $code;
 		$this->sql = $sql;
 	}
@@ -47,7 +48,6 @@ class Exception extends \Exception
 	{
 		return parent::__toString() . ($this->sql ? "\nSQL: " . $this->sql : '');
 	}
-
 }
 
 
@@ -64,7 +64,6 @@ class DriverException extends Exception
  */
 class PcreException extends Exception
 {
-
 	public function __construct($message = '%msg.')
 	{
 		static $messages = [
@@ -105,7 +104,7 @@ class ProcedureException extends Exception
 	 * @param  int     Some code
 	 * @param  string SQL command
 	 */
-	public function __construct($message = NULL, $code = 0, $severity = NULL, $sql = NULL)
+	public function __construct($message = null, $code = 0, $severity = null, $sql = null)
 	{
 		parent::__construct($message, (int) $code, $sql);
 		$this->severity = $severity;
@@ -120,7 +119,6 @@ class ProcedureException extends Exception
 	{
 		$this->severity;
 	}
-
 }
 
 

src/Dibi/interfaces.php

@@ -42,20 +42,20 @@ interface Driver
 	/**
 	 * Internal: Executes the SQL query.
 	 * @param  string      SQL statement.
-	 * @return ResultDriver|NULL
+	 * @return ResultDriver|null
 	 * @throws DriverException
 	 */
 	function query($sql);
 
 	/**
 	 * Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
-	 * @return int|FALSE  number of rows or FALSE on error
+	 * @return int|false  number of rows or false on error
 	 */
 	function getAffectedRows();
 
 	/**
 	 * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
-	 * @return int|FALSE  int on success or FALSE on failure
+	 * @return int|false  int on success or false on failure
 	 */
 	function getInsertId($sequence);
 
@@ -65,7 +65,7 @@ interface Driver
 	 * @return void
 	 * @throws DriverException
 	 */
-	function begin($savepoint = NULL);
+	function begin($savepoint = null);
 
 	/**
 	 * Commits statements in a transaction.
@@ -73,7 +73,7 @@ interface Driver
 	 * @return void
 	 * @throws DriverException
 	 */
-	function commit($savepoint = NULL);
+	function commit($savepoint = null);
 
 	/**
 	 * Rollback changes in a transaction.
@@ -81,7 +81,7 @@ interface Driver
 	 * @return void
 	 * @throws DriverException
 	 */
-	function rollback($savepoint = NULL);
+	function rollback($savepoint = null);
 
 	/**
 	 * Returns the connection resource.
@@ -143,12 +143,11 @@ interface Driver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
-	 * @param  int|NULL
-	 * @param  int|NULL
+	 * @param  int|null
+	 * @param  int|null
 	 * @return void
 	 */
 	function applyLimit(&$sql, $limit, $offset);
-
 }
 
 
@@ -167,14 +166,14 @@ interface ResultDriver
 	/**
 	 * Moves cursor position without fetching row.
 	 * @param  int      the 0-based cursor pos to seek to
-	 * @return boolean  TRUE on success, FALSE if unable to seek to specified record
+	 * @return bool     true on success, false if unable to seek to specified record
 	 * @throws Exception
 	 */
 	function seek($row);
 
 	/**
 	 * Fetches the row at current position and moves the internal cursor to the next position.
-	 * @param  bool     TRUE for associative array, FALSE for numeric
+	 * @param  bool     true for associative array, false for numeric
 	 * @return array    array on success, nonarray if no next record
 	 * @internal
 	 */
@@ -205,7 +204,6 @@ interface ResultDriver
 	 * @return string
 	 */
 	function unescapeBinary($value);
-
 }
 
 
@@ -241,5 +239,4 @@ interface Reflector
 	 * @return array
 	 */
 	function getForeignKeys($table);
-
 }

src/loader.php

@@ -12,8 +12,58 @@ if (PHP_VERSION_ID < 50404) {
 
 
 spl_autoload_register(function ($class) {
-	$old2new = [
-		'Dibi' => 'dibi.php',
+	static $map = [
+		'dibi' => 'dibi.php',
+		'Dibi\Bridges\Nette\DibiExtension22' => 'Bridges/Nette/DibiExtension22.php',
+		'Dibi\Bridges\Tracy\Panel' => 'Bridges/Tracy/Panel.php',
+		'Dibi\Connection' => 'Connection.php',
+		'Dibi\DataSource' => 'DataSource.php',
+		'Dibi\DateTime' => 'DateTime.php',
+		'Dibi\Driver' => 'interfaces.php',
+		'Dibi\DriverException' => 'exceptions.php',
+		'Dibi\Drivers\FirebirdDriver' => 'Drivers/FirebirdDriver.php',
+		'Dibi\Drivers\SqlsrvDriver' => 'Drivers/SqlsrvDriver.php',
+		'Dibi\Drivers\SqlsrvReflector' => 'Drivers/SqlsrvReflector.php',
+		'Dibi\Drivers\MsSqlDriver' => 'Drivers/MsSqlDriver.php',
+		'Dibi\Drivers\MsSqlReflector' => 'Drivers/MsSqlReflector.php',
+		'Dibi\Drivers\MySqlDriver' => 'Drivers/MySqlDriver.php',
+		'Dibi\Drivers\MySqliDriver' => 'Drivers/MySqliDriver.php',
+		'Dibi\Drivers\MySqlReflector' => 'Drivers/MySqlReflector.php',
+		'Dibi\Drivers\OdbcDriver' => 'Drivers/OdbcDriver.php',
+		'Dibi\Drivers\OracleDriver' => 'Drivers/OracleDriver.php',
+		'Dibi\Drivers\PdoDriver' => 'Drivers/PdoDriver.php',
+		'Dibi\Drivers\PostgreDriver' => 'Drivers/PostgreDriver.php',
+		'Dibi\Drivers\Sqlite3Driver' => 'Drivers/Sqlite3Driver.php',
+		'Dibi\Drivers\SqliteReflector' => 'Drivers/SqliteReflector.php',
+		'Dibi\Event' => 'Event.php',
+		'Dibi\Exception' => 'exceptions.php',
+		'Dibi\Fluent' => 'Fluent.php',
+		'Dibi\HashMap' => 'HashMap.php',
+		'Dibi\HashMapBase' => 'HashMap.php',
+		'Dibi\Helpers' => 'Helpers.php',
+		'Dibi\IDataSource' => 'interfaces.php',
+		'Dibi\Literal' => 'Literal.php',
+		'Dibi\Loggers\FileLogger' => 'Loggers/FileLogger.php',
+		'Dibi\Loggers\FirePhpLogger' => 'Loggers/FirePhpLogger.php',
+		'Dibi\NotImplementedException' => 'exceptions.php',
+		'Dibi\NotSupportedException' => 'exceptions.php',
+		'Dibi\PcreException' => 'exceptions.php',
+		'Dibi\ProcedureException' => 'exceptions.php',
+		'Dibi\Reflection\Column' => 'Reflection/Column.php',
+		'Dibi\Reflection\Database' => 'Reflection/Database.php',
+		'Dibi\Reflection\ForeignKey' => 'Reflection/ForeignKey.php',
+		'Dibi\Reflection\Index' => 'Reflection/Index.php',
+		'Dibi\Reflection\Result' => 'Reflection/Result.php',
+		'Dibi\Reflection\Table' => 'Reflection/Table.php',
+		'Dibi\Reflector' => 'interfaces.php',
+		'Dibi\Result' => 'Result.php',
+		'Dibi\ResultDriver' => 'interfaces.php',
+		'Dibi\ResultIterator' => 'ResultIterator.php',
+		'Dibi\Row' => 'Row.php',
+		'Dibi\Strict' => 'Strict.php',
+		'Dibi\Translator' => 'Translator.php',
+		'Dibi\Type' => 'Type.php',
+	], $old2new = [
 		'DibiColumnInfo' => 'Dibi\Reflection\Column',
 		'DibiConnection' => 'Dibi\Connection',
 		'DibiDatabaseInfo' => 'Dibi\Reflection\Database',
@@ -61,7 +111,9 @@ spl_autoload_register(function ($class) {
 		'Dibi\Drivers\MsSql2005Driver' => 'Dibi\Drivers\SqlsrvDriver',
 		'Dibi\Drivers\MsSql2005Reflector' => 'Dibi\Drivers\SqlsrvReflector',
 	];
-	if (isset($old2new[$class])) {
+	if (isset($map[$class])) {
+		require __DIR__ . '/Dibi/' . $map[$class];
+	} elseif (isset($old2new[$class])) {
 		class_alias($old2new[$class], $class);
 	}
 });

tests/dibi/Connection.connect.phpt

@@ -4,8 +4,8 @@
  * @dataProvider ../databases.ini
  */
 
-use Tester\Assert;
 use Dibi\Connection;
+use Tester\Assert;
 
 require __DIR__ . '/bootstrap.php';
 
@@ -20,7 +20,7 @@ test(function () use ($config) {
 
 
 test(function () use ($config) { // lazy
-	$conn = new Connection($config + ['lazy' => TRUE]);
+	$conn = new Connection($config + ['lazy' => true]);
 	Assert::false($conn->isConnected());
 
 	$conn->query('SELECT 1');

tests/dibi/Connection.fetch.phpt

@@ -4,8 +4,8 @@
  * @dataProvider ../databases.ini
  */
 
-use Tester\Assert;
 use Dibi\Row;
+use Tester\Assert;
 
 require __DIR__ . '/bootstrap.php';
 
@@ -61,9 +61,9 @@ Assert::equal([
 
 
 // more complex association array
-function query($conn) {
-
-	return $conn->query(in_array($conn->getConfig('system'), ['odbc', 'sqlsrv']) ? '
+function query($conn)
+{
+	return $conn->query(in_array($conn->getConfig('system'), ['odbc', 'sqlsrv'], true) ? '
 		SELECT products.title, customers.name, orders.amount
 		FROM ([products]
 		INNER JOIN [orders] ON [products.product_id] = [orders.product_id])
@@ -170,11 +170,11 @@ Assert::equal([
 Assert::equal([
 	new Row(['title' => 'Chair', 'name' => 'Arnold Rimmer', 'amount' => num(7.0)]),
 	new Row([
-		'title' => 'Computer', 'name' => 'Arnold Rimmer', 'amount' => num(2.0)]),
+		'title' => 'Computer', 'name' => 'Arnold Rimmer', 'amount' => num(2.0), ]),
 	new Row([
-		'title' => 'Table', 'name' => 'Dave Lister', 'amount' => num(3.0)]),
+		'title' => 'Table', 'name' => 'Dave Lister', 'amount' => num(3.0), ]),
 	new Row([
-		'title' => 'Computer', 'name' => 'Kristine Kochanski', 'amount' => num(5.0)]),
+		'title' => 'Computer', 'name' => 'Kristine Kochanski', 'amount' => num(5.0), ]),
 ], query($conn)->fetchAssoc('@,='));
 
 

tests/dibi/DataSource.phpt

@@ -1,7 +1,7 @@
 <?php
 
-use Tester\Assert;
 use Dibi\Row;
+use Tester\Assert;
 
 require __DIR__ . '/bootstrap.php';
 

tests/dibi/Fluent.cloning.phpt

@@ -1,7 +1,7 @@
 <?php
 
-use Tester\Assert;
 use Dibi\Fluent;
+use Tester\Assert;
 
 require __DIR__ . '/bootstrap.php';
 

tests/dibi/Fluent.delete.phpt

@@ -30,7 +30,7 @@ Assert::same(
 	(string) $fluent
 );
 
-$fluent->setFlag('IGNORE', FALSE);
+$fluent->setFlag('IGNORE', false);
 
 Assert::same(
 	reformat('DELETE FROM [anotherTable] USING [thirdTable]'),

tests/dibi/Fluent.fetch.limit.mssql.phpt

@@ -7,25 +7,31 @@ require __DIR__ . '/bootstrap.php';
 
 class MockDriver extends Dibi\Drivers\SqlsrvDriver
 {
-	function __construct()
-	{}
+	public function __construct()
+	{
+	}
 
-	function connect(array &$config)
-	{}
 
-	function query($sql)
+	public function connect(array &$config)
+	{
+	}
+
+
+	public function query($sql)
 	{
 		return $this;
 	}
 
-	function getResultColumns()
+
+	public function getResultColumns()
 	{
 		return [];
 	}
 
-	function fetch($assoc)
+
+	public function fetch($assoc)
 	{
-		return FALSE;
+		return false;
 	}
 }
 

tests/dibi/Fluent.fetch.phpt

@@ -4,8 +4,8 @@
  * @dataProvider ../databases.ini
  */
 
-use Tester\Assert;
 use Dibi\Row;
+use Tester\Assert;
 
 require __DIR__ . '/bootstrap.php';
 
@@ -28,7 +28,7 @@ Assert::equal([
 
 
 // more complex association array
-if (!in_array($config['system'], ['odbc', 'sqlsrv'])) {
+if (!in_array($config['system'], ['odbc', 'sqlsrv'], true)) {
 	$res = $conn->select(['products.title' => 'title', 'customers.name' => 'name'])->select('orders.amount')->as('amount')
 		->from('products')
 		->innerJoin('orders')->using('(product_id)')
@@ -48,3 +48,8 @@ if (!in_array($config['system'], ['odbc', 'sqlsrv'])) {
 		],
 	], $res->fetchAssoc('name,title'));
 }
+
+
+// affected rows
+$res = $conn->update('products', ['title' => 'new'])->execute();
+Assert::same(3, $res);

tests/dibi/Fluent.insert.phpt

@@ -11,7 +11,7 @@ $conn = new Dibi\Connection($config);
 $arr = [
 	'title' => 'Super Product',
 	'price' => 12,
-	'brand' => NULL,
+	'brand' => null,
 ];
 
 $fluent = $conn->insert('table', $arr)
@@ -22,7 +22,7 @@ Assert::same(
 	(string) $fluent
 );
 
-$fluent->setFlag('IGNORE', FALSE);
+$fluent->setFlag('IGNORE', false);
 
 Assert::same(
 	reformat('INSERT DELAYED INTO [table] ([title], [price], [brand]) VALUES (\'Super Product\', 12, NULL)'),

tests/dibi/Fluent.select.phpt

@@ -142,10 +142,9 @@ if ($config['system'] === 'mysql') {
 		->limit(' 1; DROP TABLE users')
 		->offset(' 1; DROP TABLE users');
 
-	Assert::same(
-		reformat('  SELECT * LIMIT 1 OFFSET 1'),
-		(string) $fluent
-	);
+	Assert::error(function () use ($fluent) {
+		(string) $fluent;
+	}, E_USER_ERROR, "Expected number, ' 1; DROP TABLE users' given.");
 }
 
 

tests/dibi/Fluent.update.phpt

@@ -11,7 +11,7 @@ $conn = new Dibi\Connection($config);
 $arr = [
 	'title' => 'Super Product',
 	'price' => 12,
-	'brand' => NULL,
+	'brand' => null,
 ];
 
 $fluent = $conn->update('table', $arr)

tests/dibi/Helpers.getSuggestion().phpt

@@ -6,19 +6,19 @@ use Tester\Assert;
 require __DIR__ . '/bootstrap.php';
 
 
-Assert::same(NULL, Helpers::getSuggestion([], ''));
-Assert::same(NULL, Helpers::getSuggestion([], 'a'));
-Assert::same(NULL, Helpers::getSuggestion(['a'], 'a'));
+Assert::same(null, Helpers::getSuggestion([], ''));
+Assert::same(null, Helpers::getSuggestion([], 'a'));
+Assert::same(null, Helpers::getSuggestion(['a'], 'a'));
 Assert::same('a', Helpers::getSuggestion(['a', 'b'], ''));
 Assert::same('b', Helpers::getSuggestion(['a', 'b'], 'a')); // ignore 100% match
 Assert::same('a1', Helpers::getSuggestion(['a1', 'a2'], 'a')); // take first
-Assert::same(NULL, Helpers::getSuggestion(['aaa', 'bbb'], 'a'));
-Assert::same(NULL, Helpers::getSuggestion(['aaa', 'bbb'], 'ab'));
-Assert::same(NULL, Helpers::getSuggestion(['aaa', 'bbb'], 'abc'));
+Assert::same(null, Helpers::getSuggestion(['aaa', 'bbb'], 'a'));
+Assert::same(null, Helpers::getSuggestion(['aaa', 'bbb'], 'ab'));
+Assert::same(null, Helpers::getSuggestion(['aaa', 'bbb'], 'abc'));
 Assert::same('bar', Helpers::getSuggestion(['foo', 'bar', 'baz'], 'baz'));
 Assert::same('abcd', Helpers::getSuggestion(['abcd'], 'acbd'));
 Assert::same('abcd', Helpers::getSuggestion(['abcd'], 'axbd'));
-Assert::same(NULL, Helpers::getSuggestion(['abcd'], 'axyd'));
+Assert::same(null, Helpers::getSuggestion(['abcd'], 'axyd'));
 
 
 /*

tests/dibi/Helpers.intVal().phpt

@@ -0,0 +1,25 @@
+<?php
+
+use Dibi\Helpers;
+use Tester\Assert;
+
+require __DIR__ . '/bootstrap.php';
+
+
+Assert::same(0, Helpers::intVal(0));
+Assert::same(0, Helpers::intVal('0'));
+Assert::same(-10, Helpers::intVal('-10'));
+Assert::same('12345678901234567890123456879', Helpers::intVal('12345678901234567890123456879'));
+Assert::same('-12345678901234567890123456879', Helpers::intVal('-12345678901234567890123456879'));
+
+Assert::exception(function () {
+	Helpers::intVal('');
+}, 'Dibi\Exception', "Expected number, '' given.");
+
+Assert::exception(function () {
+	Helpers::intVal('not number');
+}, 'Dibi\Exception', "Expected number, 'not number' given.");
+
+Assert::exception(function () {
+	Helpers::intVal(null);
+}, 'Dibi\Exception', "Expected number, '' given.");

tests/dibi/Result.meta.phpt

@@ -25,10 +25,10 @@ Assert::same(
 );
 
 
-if (!in_array($config['driver'], ['sqlite3', 'pdo', 'sqlsrv'])) {
+if (!in_array($config['driver'], ['sqlite3', 'pdo', 'sqlsrv'], true)) {
 	Assert::same(
 		['products.product_id', 'orders.order_id', 'customers.name', 'xXx'],
-		$info->getColumnNames(TRUE)
+		$info->getColumnNames(true)
 	);
 }
 
@@ -36,18 +36,18 @@ if (!in_array($config['driver'], ['sqlite3', 'pdo', 'sqlsrv'])) {
 $columns = $info->getColumns();
 
 Assert::same('product_id', $columns[0]->getName());
-if (!in_array($config['driver'], ['sqlite3', 'pdo', 'sqlsrv'])) {
+if (!in_array($config['driver'], ['sqlite3', 'pdo', 'sqlsrv'], true)) {
 	Assert::same('products', $columns[0]->getTableName());
 }
 Assert::null($columns[0]->getVendorInfo('xxx'));
-if (!in_array($config['system'], ['sqlite', 'sqlsrv'])) {
+if (!in_array($config['system'], ['sqlite', 'sqlsrv'], true)) {
 	Assert::same('i', $columns[0]->getType());
 }
 Assert::null($columns[0]->isNullable());
 
 Assert::same('xXx', $columns[3]->getName());
 Assert::null($columns[3]->getTableName());
-if (!in_array($config['system'], ['sqlite', 'sqlsrv'])) {
+if (!in_array($config['system'], ['sqlite', 'sqlsrv'], true)) {
 	Assert::same('i', $columns[0]->getType());
 }
 Assert::null($columns[3]->isNullable());

tests/dibi/Result.normalize.phpt

@@ -1,20 +1,22 @@
 <?php
 
-use Tester\Assert;
 use Dibi\Type;
+use Tester\Assert;
 
 require __DIR__ . '/bootstrap.php';
 
 
 class MockResult extends Dibi\Result
 {
-	function __construct()
-	{}
+	public function __construct()
+	{
+	}
 
-	function test($row)
+
+	public function test($row)
 	{
 		$normalize = new ReflectionMethod('Dibi\Result', 'normalize');
-		$normalize->setAccessible(TRUE);
+		$normalize->setAccessible(true);
 		$normalize->invokeArgs($this, [&$row]);
 		return $row;
 	}
@@ -25,21 +27,21 @@ test(function () {
 	$result = new MockResult;
 	$result->setType('col', Type::BOOL);
 
-	Assert::same(['col' => NULL], $result->test(['col' => NULL]));
-	Assert::same(['col' => TRUE], $result->test(['col' => TRUE]));
-	Assert::same(['col' => FALSE], $result->test(['col' => FALSE]));
+	Assert::same(['col' => null], $result->test(['col' => null]));
+	Assert::same(['col' => true], $result->test(['col' => true]));
+	Assert::same(['col' => false], $result->test(['col' => false]));
 
-	Assert::same(['col' => FALSE], $result->test(['col' => '']));
-	Assert::same(['col' => FALSE], $result->test(['col' => '0']));
-	Assert::same(['col' => TRUE], $result->test(['col' => '1']));
-	Assert::same(['col' => TRUE], $result->test(['col' => 't']));
-	Assert::same(['col' => FALSE], $result->test(['col' => 'f']));
-	Assert::same(['col' => TRUE], $result->test(['col' => 'T']));
-	Assert::same(['col' => FALSE], $result->test(['col' => 'F']));
-	Assert::same(['col' => FALSE], $result->test(['col' => 0]));
-	Assert::same(['col' => FALSE], $result->test(['col' => 0.0]));
-	Assert::same(['col' => TRUE], $result->test(['col' => 1]));
-	Assert::same(['col' => TRUE], $result->test(['col' => 1.0]));
+	Assert::same(['col' => false], $result->test(['col' => '']));
+	Assert::same(['col' => false], $result->test(['col' => '0']));
+	Assert::same(['col' => true], $result->test(['col' => '1']));
+	Assert::same(['col' => true], $result->test(['col' => 't']));
+	Assert::same(['col' => false], $result->test(['col' => 'f']));
+	Assert::same(['col' => true], $result->test(['col' => 'T']));
+	Assert::same(['col' => false], $result->test(['col' => 'F']));
+	Assert::same(['col' => false], $result->test(['col' => 0]));
+	Assert::same(['col' => false], $result->test(['col' => 0.0]));
+	Assert::same(['col' => true], $result->test(['col' => 1]));
+	Assert::same(['col' => true], $result->test(['col' => 1.0]));
 });
 
 
@@ -47,9 +49,9 @@ test(function () {
 	$result = new MockResult;
 	$result->setType('col', Type::TEXT);
 
-	Assert::same(['col' => NULL], $result->test(['col' => NULL]));
-	Assert::same(['col' => '1'], $result->test(['col' => TRUE]));
-	Assert::same(['col' => ''], $result->test(['col' => FALSE]));
+	Assert::same(['col' => null], $result->test(['col' => null]));
+	Assert::same(['col' => '1'], $result->test(['col' => true]));
+	Assert::same(['col' => ''], $result->test(['col' => false]));
 
 	Assert::same(['col' => ''], $result->test(['col' => '']));
 	Assert::same(['col' => '0'], $result->test(['col' => '0']));
@@ -63,9 +65,9 @@ test(function () {
 	$result = new MockResult;
 	$result->setType('col', Type::FLOAT);
 
-	Assert::same(['col' => NULL], $result->test(['col' => NULL]));
-	Assert::same(['col' => 1.0], $result->test(['col' => TRUE]));
-	Assert::same(['col' => 0.0], $result->test(['col' => FALSE]));
+	Assert::same(['col' => null], $result->test(['col' => null]));
+	Assert::same(['col' => 1.0], $result->test(['col' => true]));
+	Assert::same(['col' => 0.0], $result->test(['col' => false]));
 
 	Assert::same(['col' => 0.0], $result->test(['col' => '']));
 	Assert::same(['col' => 0.0], $result->test(['col' => '0']));
@@ -135,9 +137,9 @@ test(function () {
 	$result = new MockResult;
 	$result->setType('col', Type::INTEGER);
 
-	Assert::same(['col' => NULL], $result->test(['col' => NULL]));
-	Assert::same(['col' => 1], $result->test(['col' => TRUE]));
-	Assert::same(['col' => 0], $result->test(['col' => FALSE]));
+	Assert::same(['col' => null], $result->test(['col' => null]));
+	Assert::same(['col' => 1], $result->test(['col' => true]));
+	Assert::same(['col' => 0], $result->test(['col' => false]));
 
 	Assert::same(['col' => 0], @$result->test(['col' => ''])); // triggers warning in PHP 7.1
 	Assert::same(['col' => 0], $result->test(['col' => '0']));
@@ -161,14 +163,14 @@ test(function () {
 	$result = new MockResult;
 	$result->setType('col', Type::DATETIME);
 
-	Assert::same(['col' => NULL], $result->test(['col' => NULL]));
+	Assert::same(['col' => null], $result->test(['col' => null]));
 	Assert::exception(function () use ($result) {
-		$result->test(['col' => TRUE]);
+		$result->test(['col' => true]);
 	}, 'Exception');
-	Assert::same(['col' => NULL], $result->test(['col' => FALSE]));
+	Assert::same(['col' => null], $result->test(['col' => false]));
 
-	Assert::same(['col' => NULL], $result->test(['col' => '']));
-	Assert::same(['col' => NULL], $result->test(['col' => '0000-00-00']));
+	Assert::same(['col' => null], $result->test(['col' => '']));
+	Assert::same(['col' => null], $result->test(['col' => '0000-00-00']));
 	Assert::equal(['col' => new Dibi\DateTime('00:00:00')], $result->test(['col' => '00:00:00']));
 	Assert::equal(['col' => new Dibi\DateTime('2015-10-13')], $result->test(['col' => '2015-10-13']));
 	Assert::equal(['col' => new Dibi\DateTime('2015-10-13 14:30')], $result->test(['col' => '2015-10-13 14:30']));
@@ -180,14 +182,14 @@ test(function () {
 	$result->setType('col', Type::DATETIME);
 	$result->setFormat(Type::DATETIME, 'Y-m-d H:i:s');
 
-	Assert::same(['col' => NULL], $result->test(['col' => NULL]));
+	Assert::same(['col' => null], $result->test(['col' => null]));
 	Assert::exception(function () use ($result) {
-		$result->test(['col' => TRUE]);
+		$result->test(['col' => true]);
 	}, 'Exception');
-	Assert::same(['col' => NULL], $result->test(['col' => FALSE]));
+	Assert::same(['col' => null], $result->test(['col' => false]));
 
-	Assert::same(['col' => NULL], $result->test(['col' => '']));
-	Assert::same(['col' => NULL], $result->test(['col' => '0000-00-00']));
+	Assert::same(['col' => null], $result->test(['col' => '']));
+	Assert::same(['col' => null], $result->test(['col' => '0000-00-00']));
 	Assert::same(['col' => date('Y-m-d 00:00:00')], $result->test(['col' => '00:00:00']));
 	Assert::equal(['col' => '2015-10-13 00:00:00'], $result->test(['col' => '2015-10-13']));
 	Assert::equal(['col' => '2015-10-13 14:30:00'], $result->test(['col' => '2015-10-13 14:30']));
@@ -198,14 +200,14 @@ test(function () {
 	$result = new MockResult;
 	$result->setType('col', Type::DATE);
 
-	Assert::same(['col' => NULL], $result->test(['col' => NULL]));
+	Assert::same(['col' => null], $result->test(['col' => null]));
 	Assert::exception(function () use ($result) {
-		$result->test(['col' => TRUE]);
+		$result->test(['col' => true]);
 	}, 'Exception');
-	Assert::same(['col' => NULL], $result->test(['col' => FALSE]));
+	Assert::same(['col' => null], $result->test(['col' => false]));
 
-	Assert::same(['col' => NULL], $result->test(['col' => '']));
-	Assert::same(['col' => NULL], $result->test(['col' => '0000-00-00']));
+	Assert::same(['col' => null], $result->test(['col' => '']));
+	Assert::same(['col' => null], $result->test(['col' => '0000-00-00']));
 	Assert::equal(['col' => new Dibi\DateTime('2015-10-13')], $result->test(['col' => '2015-10-13']));
 });
 
@@ -214,14 +216,14 @@ test(function () {
 	$result = new MockResult;
 	$result->setType('col', Type::TIME);
 
-	Assert::same(['col' => NULL], $result->test(['col' => NULL]));
+	Assert::same(['col' => null], $result->test(['col' => null]));
 	Assert::exception(function () use ($result) {
-		$result->test(['col' => TRUE]);
+		$result->test(['col' => true]);
 	}, 'Exception');
-	Assert::same(['col' => NULL], $result->test(['col' => FALSE]));
+	Assert::same(['col' => null], $result->test(['col' => false]));
 
-	Assert::same(['col' => NULL], $result->test(['col' => '']));
-	Assert::same(['col' => NULL], $result->test(['col' => '0000-00-00']));
+	Assert::same(['col' => null], $result->test(['col' => '']));
+	Assert::same(['col' => null], $result->test(['col' => '0000-00-00']));
 	Assert::equal(['col' => new Dibi\DateTime('00:00:00')], $result->test(['col' => '00:00:00']));
 	Assert::equal(['col' => new Dibi\DateTime('14:30')], $result->test(['col' => '14:30']));
 });

tests/dibi/Sqlsrv.insert.phpt

@@ -9,7 +9,7 @@ use Tester\Assert;
 require __DIR__ . '/bootstrap.php';
 
 $conn = new Dibi\Connection($config);
-$conn->loadFile(__DIR__ . "/data/sqlsrv.insert.sql");
+$conn->loadFile(__DIR__ . '/data/sqlsrv.insert.sql');
 
 for ($i = 1; $i <= 5; $i++) {
 	$conn->query('INSERT INTO %n DEFAULT VALUES', 'aaa');

tests/dibi/Strict.phpt

@@ -11,27 +11,37 @@ class TestClass
 
 	public $public;
 
-	protected $protected;
-
 	public static $publicStatic;
 
+	protected $protected;
+
+
 	public function publicMethod()
-	{}
+	{
+	}
+
 
 	public static function publicMethodStatic()
-	{}
+	{
+	}
+
 
 	protected function protectedMethod()
-	{}
+	{
+	}
+
 
 	protected static function protectedMethodS()
-	{}
+	{
+	}
+
 
 	public function getBar()
 	{
 		return 123;
 	}
 
+
 	public function isFoo()
 	{
 		return 456;

tests/dibi/Translator.DateTimeInterface.phpt

@@ -13,5 +13,5 @@ $translator = new Dibi\Translator($conn);
 
 $datetime = new DateTime('1978-01-23 00:00:00');
 
-Assert::equal($datetime->format('U'), $translator->formatValue(new DateTime($datetime->format('c')), NULL));
-Assert::equal($datetime->format('U'), $translator->formatValue(new DateTimeImmutable($datetime->format('c')), NULL));
+Assert::equal($datetime->format('U'), $translator->formatValue(new DateTime($datetime->format('c')), null));
+Assert::equal($datetime->format('U'), $translator->formatValue(new DateTimeImmutable($datetime->format('c')), null));

tests/dibi/Translator.conditions.phpt

@@ -33,7 +33,7 @@ FROM  [customers] /* ... */'),
 
 	$conn->translate('
 SELECT *
-FROM %if', TRUE, '[customers] %else [products]'
+FROM %if', true, '[customers] %else [products]'
 ));
 
 
@@ -51,8 +51,8 @@ WHERE [id] > 0
 SELECT *
 FROM [people]
 WHERE [id] > 0
-	%if', FALSE, 'AND [foo]=%i', 1, '
-	%else %if', TRUE, 'AND [bar]=%i', 1, '
+	%if', false, 'AND [foo]=%i', 1, '
+	%else %if', true, 'AND [bar]=%i', 1, '
 '));
 
 
@@ -70,8 +70,8 @@ WHERE
 SELECT *
 FROM [customers]
 WHERE
-	%if', TRUE, '[name] LIKE %s', 'xxx', '
-		%if', FALSE, 'AND [admin]=1 %end
+	%if', true, '[name] LIKE %s', 'xxx', '
+		%if', false, 'AND [admin]=1 %end
 	%else 1 LIMIT 10 %end'
 ));
 
@@ -81,7 +81,7 @@ Assert::same(
 	'SELECT * FROM foo /* (limit 3) (offset 5) */',
 	$conn->translate(
 	'SELECT * FROM foo',
-	'%if', FALSE,
+	'%if', false,
 		'%lmt', 3,
 		'%ofs', 5,
 	'%end'

tests/dibi/Translator.phpt

@@ -4,8 +4,8 @@
  * @dataProvider ../databases.ini
  */
 
-use Tester\Assert;
 use Dibi\DateTime;
+use Tester\Assert;
 
 require __DIR__ . '/bootstrap.php';
 
@@ -16,16 +16,17 @@ $conn = new Dibi\Connection($config + ['formatDateTime' => "'Y-m-d H:i:s.u'", 'f
 Assert::same(
 	reformat("REPLACE INTO [products] ([title], [price]) VALUES ('Drticka', 318)"),
 	$conn->translate('REPLACE INTO [products]', [
-	'title' => 'Drticka',
-	'price' => 318,
-]));
+		'title' => 'Drticka',
+		'price' => 318,
+	])
+);
 
 
 // multiple INSERT command
 $array = [
 	'title' => 'Super Product',
 	'price' => 12,
-	'brand' => NULL,
+	'brand' => null,
 ];
 Assert::same(
 	reformat('INSERT INTO [products] ([title], [price], [brand]) VALUES (\'Super Product\', 12, NULL) , (\'Super Product\', 12, NULL) , (\'Super Product\', 12, NULL)'),
@@ -49,9 +50,10 @@ Assert::same(
 Assert::same(
 	reformat("UPDATE [colors] SET [color]='blue', [order]=12 WHERE [id]=123"),
 	$conn->translate('UPDATE [colors] SET', [
-	'color' => 'blue',
-	'order' => 12,
-], 'WHERE [id]=%i', 123));
+		'color' => 'blue',
+		'order' => 12,
+	], 'WHERE [id]=%i', 123)
+);
 
 
 // IN array
@@ -95,7 +97,7 @@ Assert::same(
 	$conn->translate('TEST %and', ['[cond] > 2', '[cond2] = "3"', 'cond3 < RAND()'])
 );
 
-//
+
 $where = [];
 $where[] = '[age] > 20';
 $where[] = '[email] IS NOT NULL';
@@ -106,7 +108,7 @@ Assert::same(
 
 
 $where = [];
-$where['age'] = NULL;
+$where['age'] = null;
 $where['email'] = 'ahoj';
 $where['id%l'] = [10, 20, 30];
 Assert::same(
@@ -128,8 +130,8 @@ $order = [
 	'field2' => 'desc',
 	'field3' => 1,
 	'field4' => -1,
-	'field5' => TRUE,
-	'field6' => FALSE,
+	'field5' => true,
+	'field6' => false,
 ];
 Assert::same(
 	reformat('SELECT * FROM [people] ORDER BY [field1] ASC, [field2] DESC, [field3] ASC, [field4] DESC, [field5] ASC, [field6] DESC'),
@@ -156,7 +158,7 @@ if ($config['system'] === 'odbc') {
 	Assert::same(
 		reformat([
 			'sqlsrv' => 'SELECT * FROM [products] OFFSET 1 ROWS FETCH NEXT 2 ROWS ONLY',
-			'SELECT * FROM [products]   LIMIT 2 OFFSET 1'
+			'SELECT * FROM [products]   LIMIT 2 OFFSET 1',
 		]),
 		$conn->translate('SELECT * FROM [products] %lmt %ofs', 2, 1)
 	);
@@ -179,22 +181,25 @@ if ($config['system'] === 'odbc') {
 Assert::same(
 	reformat([
 		'odbc' => 'INSERT INTO test ([a2], [a4], [b1], [b2], [b3], [b4], [b5], [b6], [b7], [b8], [b9], [c1]) VALUES (#09/26/1212 00:00:00.000000#, #12/31/1969 22:13:20.000000#, #09/26/1212#, #09/26/1212 00:00:00.000000#, #12/31/1969#, #12/31/1969 22:13:20.000000#, #09/26/1212 00:00:00.000000#, #09/26/1212#, #09/26/1212 00:00:00.000000#, NULL, NULL, #09/26/1212 16:51:34.012400#)',
+		'mssql' => "INSERT INTO test ([a2], [a4], [b1], [b2], [b3], [b4], [b5], [b6], [b7], [b8], [b9], [c1]) VALUES (CONVERT(DATETIME2(7), '1212-09-26 00:00:00.000000'), CONVERT(DATETIME2(7), '1969-12-31 22:13:20.000000'), '1212-09-26', CONVERT(DATETIME2(7), '1212-09-26 00:00:00.000000'), '1969-12-31', CONVERT(DATETIME2(7), '1969-12-31 22:13:20.000000'), CONVERT(DATETIME2(7), '1212-09-26 00:00:00.000000'), '1212-09-26', CONVERT(DATETIME2(7), '1212-09-26 00:00:00.000000'), NULL, NULL, CONVERT(DATETIME2(7), '1212-09-26 16:51:34.012400'))",
+		'sqlsrv' => "INSERT INTO test ([a2], [a4], [b1], [b2], [b3], [b4], [b5], [b6], [b7], [b8], [b9], [c1]) VALUES (CONVERT(DATETIME2(7), '1212-09-26 00:00:00.000000'), CONVERT(DATETIME2(7), '1969-12-31 22:13:20.000000'), '1212-09-26', CONVERT(DATETIME2(7), '1212-09-26 00:00:00.000000'), '1969-12-31', CONVERT(DATETIME2(7), '1969-12-31 22:13:20.000000'), CONVERT(DATETIME2(7), '1212-09-26 00:00:00.000000'), '1212-09-26', CONVERT(DATETIME2(7), '1212-09-26 00:00:00.000000'), NULL, NULL, CONVERT(DATETIME2(7), '1212-09-26 16:51:34.012400'))",
 		"INSERT INTO test ([a2], [a4], [b1], [b2], [b3], [b4], [b5], [b6], [b7], [b8], [b9], [c1]) VALUES ('1212-09-26 00:00:00.000000', '1969-12-31 22:13:20.000000', '1212-09-26', '1212-09-26 00:00:00.000000', '1969-12-31', '1969-12-31 22:13:20.000000', '1212-09-26 00:00:00.000000', '1212-09-26', '1212-09-26 00:00:00.000000', NULL, NULL, '1212-09-26 16:51:34.012400')",
 	]),
 	$conn->translate('INSERT INTO test', [
-	'a2' => new DateTime('1212-09-26'),
-	'a4' => new DateTime(-10000),
-	'b1%d' => '1212-09-26',
-	'b2%t' => '1212-09-26',
-	'b3%d' => -10000,
-	'b4%t' => -10000,
-	'b5' => new DateTime('1212-09-26'),
-	'b6%d' => new DateTime('1212-09-26'),
-	'b7%t' => new DateTime('1212-09-26'),
-	'b8%d' => NULL,
-	'b9%t' => NULL,
-	'c1%t' => new DateTime('1212-09-26 16:51:34.0124'),
-]));
+		'a2' => new DateTime('1212-09-26'),
+		'a4' => new DateTime(-10000),
+		'b1%d' => '1212-09-26',
+		'b2%t' => '1212-09-26',
+		'b3%d' => -10000,
+		'b4%t' => -10000,
+		'b5' => new DateTime('1212-09-26'),
+		'b6%d' => new DateTime('1212-09-26'),
+		'b7%t' => new DateTime('1212-09-26'),
+		'b8%d' => null,
+		'b9%t' => null,
+		'c1%t' => new DateTime('1212-09-26 16:51:34.0124'),
+	])
+);
 
 Assert::exception(function () use ($conn) {
 	$conn->translate('SELECT %s', new DateTime('1212-09-26'));
@@ -285,7 +290,7 @@ $array3 = [
 ];
 $array4 = [
 	'a' => 12,
-	'b' => NULL,
+	'b' => null,
 	'c' => new DateTime('12.3.2007'),
 	'd' => 'any string',
 ];
@@ -396,9 +401,9 @@ WHERE ([test.a] LIKE %d', '1995-03-01', '
 	OR [b10] IN (', [], ")
 	AND [c] = 'embedded '' string'
 	OR [d]=%i", 10.3, '
-	OR [e]=%i', NULL, '
-	OR [true]=', TRUE, '
-	OR [false]=', FALSE, '
+	OR [e]=%i', null, '
+	OR [true]=', true, '
+	OR [false]=', false, '
 	OR [str_null]=%sn', '', '
 	OR [str_not_null]=%sn', 'hello', '
 LIMIT 10')
@@ -440,7 +445,7 @@ Assert::same(
 
 
 $where = [
-		'tablename.column' => 1,
+	'tablename.column' => 1,
 ];
 Assert::same(
 	reformat('SELECT * FROM [tablename] WHERE ([tablename].[column] = 1)'),
@@ -450,7 +455,7 @@ Assert::same(
 
 Assert::same(
 	reformat('SELECT FROM ... '),
-	$conn->translate('SELECT FROM ... %lmt', NULL)
+	$conn->translate('SELECT FROM ... %lmt', null)
 );
 
 Assert::same(
@@ -467,20 +472,36 @@ Assert::same(
 Assert::same(
 	reformat('INSERT INTO [products] ([product_id], [title]) VALUES (1, SHA1(\'Test product\')) , (1, SHA1(\'Test product\'))'),
 	$conn->translate('INSERT INTO [products]', [
-	'product_id' => 1,
-	'title' => ['SHA1(%s)', 'Test product'],
-], [
-	'product_id' => 1,
-	'title' => ['SHA1(%s)', 'Test product'],
-])
+		'product_id' => 1,
+		'title' => ['SHA1(%s)', 'Test product'],
+	], [
+		'product_id' => 1,
+		'title' => new Dibi\Expression('SHA1(%s)', 'Test product'),
+	])
 );
 
 Assert::same(
 	reformat('UPDATE [products] [product_id]=1, [title]=SHA1(\'Test product\')'),
 	$conn->translate('UPDATE [products]', [
-	'product_id' => 1,
-	'title' => ['SHA1(%s)', 'Test product'],
-])
+		'product_id' => 1,
+		'title' => ['SHA1(%s)', 'Test product'],
+	])
+);
+
+Assert::same(
+	reformat('UPDATE [products] [product_id]=1, [title]=SHA1(\'Test product\')'),
+	$conn->translate('UPDATE [products]', [
+		'product_id' => 1,
+		'title' => new Dibi\Expression('SHA1(%s)', 'Test product'),
+	])
+);
+
+Assert::same(
+	reformat('SELECT * FROM [products] WHERE [product_id]=1, [title]=SHA1(\'Test product\')'),
+	$conn->translate('SELECT * FROM [products] WHERE', [
+		'product_id' => 1,
+		'title' => new Dibi\Expression('SHA1(%s)', 'Test product'),
+	])
 );
 
 
@@ -497,11 +518,11 @@ Assert::same('INSERT INTO test **Multi-insert array "num%i" is different**', $e-
 $array6 = [
 	'id' => [1, 2, 3, 4],
 	'text' => ['ahoj', 'jak', 'se', ['SUM(%i)', '5']],
-	'num%i' => ['1', '', 10.3, 1],
+	'num%i' => ['1', '-1', 10.3, 1],
 ];
 
 Assert::same(
-	reformat('INSERT INTO test ([id], [text], [num]) VALUES (1, \'ahoj\', 1), (2, \'jak\', 0), (3, \'se\', 10), (4, SUM(5), 1)'),
+	reformat('INSERT INTO test ([id], [text], [num]) VALUES (1, \'ahoj\', 1), (2, \'jak\', -1), (3, \'se\', 10), (4, SUM(5), 1)'),
 	$conn->translate('INSERT INTO test %m', $array6)
 );
 
@@ -521,10 +542,13 @@ Assert::same(
 	$conn->translate('INSERT INTO [test.*]')
 );
 
-Assert::same(
-	reformat('INSERT INTO 0'),
-	@$conn->translate('INSERT INTO %f', 'ahoj') // triggers warning in PHP 7.1
-);
+Assert::exception(function () use ($conn) {
+	$conn->translate('INSERT INTO %i', 'ahoj');
+}, 'Dibi\Exception', "Expected number, 'ahoj' given.");
+
+Assert::exception(function () use ($conn) {
+	$conn->translate('INSERT INTO %f', 'ahoj');
+}, 'Dibi\Exception', "Expected number, 'ahoj' given.");
 
 
 Assert::same(
@@ -549,17 +573,17 @@ Assert::same(
 );
 
 
-setLocale(LC_ALL, 'czech');
+setlocale(LC_ALL, 'czech');
 
 Assert::same(
 	reformat("UPDATE [colors] SET [color]='blue', [price]=-12.4, [spec]=-9E-005, [spec2]=1000, [spec3]=10000, [spec4]=10000 WHERE [price]=123.5"),
 
 	$conn->translate('UPDATE [colors] SET', [
-	'color' => 'blue',
-	'price' => -12.4,
-	'spec%f' => '-9E-005',
-	'spec2%f' => 1000.00,
-	'spec3%i' => 10000,
-	'spec4' => 10000,
-], 'WHERE [price]=%f', 123.5)
+		'color' => 'blue',
+		'price' => -12.4,
+		'spec%f' => '-9E-005',
+		'spec2%f' => 1000.00,
+		'spec3%i' => 10000,
+		'spec4' => 10000,
+	], 'WHERE [price]=%f', 123.5)
 );

tests/dibi/bootstrap.php

@@ -18,7 +18,7 @@ date_default_timezone_set('Europe/Prague');
 try {
 	$config = Tester\Environment::loadData();
 } catch (Exception $e) {
-	$config = parse_ini_file(__DIR__ . '/../databases.ini', TRUE);
+	$config = parse_ini_file(__DIR__ . '/../databases.ini', true);
 	$config = reset($config);
 }
 
@@ -63,7 +63,7 @@ function reformat($s)
 		return strtr($s, '[]', '``');
 	} elseif ($config['system'] === 'postgre') {
 		return strtr($s, '[]', '""');
-	} elseif (in_array($config['system'], ['odbc', 'sqlite', 'sqlsrv'])) {
+	} elseif (in_array($config['system'], ['odbc', 'sqlite', 'sqlsrv'], true)) {
 		return $s;
 	} else {
 		trigger_error("Unsupported driver $config[system]", E_USER_WARNING);

tests/dibi/exceptions.mysql.phpt

@@ -15,7 +15,7 @@ $conn->loadFile(__DIR__ . "/data/$config[system].sql");
 
 $e = Assert::exception(function () use ($conn) {
 	$conn->query('SELECT');
-}, 'Dibi\DriverException', "%a% error in your SQL syntax;%a%", 1064);
+}, 'Dibi\DriverException', '%a% error in your SQL syntax;%a%', 1064);
 
 Assert::same('SELECT', $e->getSql());
 

tests/dibi/exceptions.sqlite.phpt

@@ -22,14 +22,14 @@ Assert::same('SELECT', $e->getSql());
 
 $e = Assert::exception(function () use ($conn) {
 	$conn->query('INSERT INTO products (product_id, title) VALUES (1, "New")');
-}, 'Dibi\UniqueConstraintViolationException', NULL, 19);
+}, 'Dibi\UniqueConstraintViolationException', null, 19);
 
 Assert::same("INSERT INTO products (product_id, title) VALUES (1, 'New')", $e->getSql());
 
 
 $e = Assert::exception(function () use ($conn) {
 	$conn->query('INSERT INTO products (title) VALUES (NULL)');
-}, 'Dibi\NotNullConstraintViolationException', NULL, 19);
+}, 'Dibi\NotNullConstraintViolationException', null, 19);
 
 Assert::same('INSERT INTO products (title) VALUES (NULL)', $e->getSql());
 
@@ -37,6 +37,6 @@ Assert::same('INSERT INTO products (title) VALUES (NULL)', $e->getSql());
 $e = Assert::exception(function () use ($conn) {
 	$conn->query('PRAGMA foreign_keys=true');
 	$conn->query('INSERT INTO orders (customer_id, product_id, amount) VALUES (100, 1, 1)');
-}, 'Dibi\ForeignKeyConstraintViolationException', NULL, 19);
+}, 'Dibi\ForeignKeyConstraintViolationException', null, 19);
 
 Assert::same('INSERT INTO orders (customer_id, product_id, amount) VALUES (100, 1, 1)', $e->getSql());