Released version 3.0.9

appveyor: PHP is downloaded using cURL
"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."
2025-09-04 19:55:26 +02:00 · 2018-03-09 12:56:49 +01:00 · 2018-03-08 13:53:10 +01:00 · 2018-02-15 11:54:37 +01:00 · 2017-09-21 14:05:20 +02:00 · 2017-06-10 03:05:18 +02:00
37 changed files with 500 additions and 228 deletions
--- a/.gitattributes
+++ b/.gitattributes
@@ -2,4 +2,5 @@
 .gitignore export-ignore
 .github export-ignore
 .travis.yml export-ignore
 appveyor.yml export-ignore
 tests/ export-ignore
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,11 +5,6 @@ php:
    - 5.6
    - 7.0
    - 7.1
    - hhvm
 matrix:
    allow_failures:
        - php: hhvm
 script:
    - vendor/bin/tester tests -s -p php -c tests/php-unix.ini $COVERAGE
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -8,7 +8,7 @@ clone_folder: c:\projects\dibi
 services:
    - mssql2012sp1
-    - mssql2014
+#    - mssql2014
    - mysql
 init:
@@ -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 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-5.6.14-Win32-VC11-x86.zip >nul
+    - 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 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-7.0.3-Win32-VC14-x86.zip >nul
+    - 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
--- a/examples/fetching-examples.php
+++ b/examples/fetching-examples.php
@@ -1,7 +1,3 @@
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 <h1>Fetching Examples | dibi</h1>
 <?php
 if (@!include __DIR__ . '/../vendor/autoload.php') {
@@ -10,6 +6,12 @@ if (@!include __DIR__ . '/../vendor/autoload.php') {
 Tracy\Debugger::enable();
 ?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 <h1>Fetching Examples | dibi</h1>
 <?php
 dibi::connect([
 	'driver' => 'sqlite3',
--- a/examples/result-set-data-types.php
+++ b/examples/result-set-data-types.php
@@ -1,7 +1,3 @@
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 <h1>Result Set Data Types | dibi</h1>
 <?php
 use Dibi\Type;
@@ -14,6 +10,12 @@ Tracy\Debugger::enable();
 date_default_timezone_set('Europe/Prague');
 ?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 <h1>Result Set Data Types | dibi</h1>
 <?php
 dibi::connect([
 	'driver' => 'sqlite3',
--- a/examples/tracy-and-exceptions.php
+++ b/examples/tracy-and-exceptions.php
@@ -1,9 +1,3 @@
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 <h1>Tracy & SQL Exceptions | dibi</h1>
 <p>Dibi can display and log exceptions via <a href="https://tracy.nette.org">Tracy</a>.</p>
 <?php
 if (@!include __DIR__ . '/../vendor/autoload.php') {
@@ -31,3 +25,9 @@ $panel->register($connection);
 // throws error because SQL is bad
 dibi::query('SELECT FROM customers WHERE customer_id < ?', 38);
 ?><!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 <h1>Tracy & SQL Exceptions | dibi</h1>
 <p>Dibi can display and log exceptions via <a href="https://tracy.nette.org">Tracy</a>.</p>
--- a/examples/tracy.php
+++ b/examples/tracy.php
@@ -1,11 +1,3 @@
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 <style> html { background: url(data/arrow.png) no-repeat bottom right; height: 100%; } </style>
 <h1>Tracy | dibi</h1>
 <p>Dibi can log queries and dump variables to the <a href="https://tracy.nette.org">Tracy</a>.</p>
 <?php
 if (@!include __DIR__ . '/../vendor/autoload.php') {
@@ -36,3 +28,13 @@ dibi::query('SELECT 123');
 // result set will be dumped
 Tracy\Debugger::barDump(dibi::fetchAll('SELECT * FROM customers WHERE customer_id < ?', 38), '[customers]');
 ?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 <style> html { background: url(data/arrow.png) no-repeat bottom right; height: 100%; } </style>
 <h1>Tracy | dibi</h1>
 <p>Dibi can log queries and dump variables to the <a href="https://tracy.nette.org">Tracy</a>.</p>
--- a/examples/using-extension-methods.php
+++ b/examples/using-extension-methods.php
@@ -1,7 +1,3 @@
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 <h1>Using Extension Methods | dibi</h1>
 <?php
 if (@!include __DIR__ . '/../vendor/autoload.php') {
@@ -10,6 +6,12 @@ if (@!include __DIR__ . '/../vendor/autoload.php') {
 Tracy\Debugger::enable();
 ?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 <h1>Using Extension Methods | dibi</h1>
 <?php
 dibi::connect([
 	'driver' => 'sqlite3',
--- a/src/Dibi/Bridges/Tracy/Panel.php
+++ b/src/Dibi/Bridges/Tracy/Panel.php
@@ -63,7 +63,7 @@ class Panel implements Tracy\IBarPanel
 	/**
 	 * Returns blue-screen custom tab.
-	 * @return mixed
+	 * @return array|NULL
 	 */
 	public static function renderException($e)
 	{
@@ -78,7 +78,7 @@ class Panel implements Tracy\IBarPanel
 	/**
 	 * Returns HTML code for custom tab. (Tracy\IBarPanel)
-	 * @return mixed
+	 * @return string
 	 */
 	public function getTab()
 	{
@@ -88,35 +88,39 @@ class Panel implements Tracy\IBarPanel
 			$totalTime += $event->time;
 		}
 		return '<span title="dibi"><svg viewBox="0 0 2048 2048" style="vertical-align: bottom; width:1.23em; height:1.55em"><path fill="' . ($count ? '#b079d6' : '#aaa') . '" d="M1024 896q237 0 443-43t325-127v170q0 69-103 128t-280 93.5-385 34.5-385-34.5-280-93.5-103-128v-170q119 84 325 127t443 43zm0 768q237 0 443-43t325-127v170q0 69-103 128t-280 93.5-385 34.5-385-34.5-280-93.5-103-128v-170q119 84 325 127t443 43zm0-384q237 0 443-43t325-127v170q0 69-103 128t-280 93.5-385 34.5-385-34.5-280-93.5-103-128v-170q119 84 325 127t443 43zm0-1152q208 0 385 34.5t280 93.5 103 128v128q0 69-103 128t-280 93.5-385 34.5-385-34.5-280-93.5-103-128v-128q0-69 103-128t280-93.5 385-34.5z"/></svg><span class="tracy-label">'
-			. $count . ' queries'
+			. $count . ' queries'
-			. ($totalTime ? sprintf(' / %0.1f ms', $totalTime * 1000) : '')
+			. ($totalTime ? ' / ' . number_format($totalTime * 1000, 1, '.', ' ') . ' ms' : '')
 			. '</span></span>';
 	}
 	/**
 	 * Returns HTML code for custom panel. (Tracy\IBarPanel)
-	 * @return mixed
+	 * @return string|NULL
 	 */
 	public function getPanel()
 	{
 		if (!$this->events) {
 			return NULL;
 		}
 		$totalTime = $s = NULL;
 		$h = 'htmlSpecialChars';
 		foreach ($this->events as $event) {
 			$totalTime += $event->time;
 			$connection = $event->connection;
 			$explain = NULL; // EXPLAIN is called here to work SELECT FOUND_ROWS()
 			if ($this->explain && $event->type === Event::SELECT) {
 				try {
-					$backup = [$event->connection->onEvent, \dibi::$numOfQueries, \dibi::$totalTime];
+					$backup = [$connection->onEvent, \dibi::$numOfQueries, \dibi::$totalTime];
-					$event->connection->onEvent = NULL;
+					$connection->onEvent = NULL;
-					$cmd = is_string($this->explain) ? $this->explain : ($event->connection->getConfig('driver') === 'oracle' ? 'EXPLAIN PLAN FOR' : 'EXPLAIN');
+					$cmd = is_string($this->explain) ? $this->explain : ($connection->getConfig('driver') === 'oracle' ? 'EXPLAIN PLAN FOR' : 'EXPLAIN');
-					$explain = Helpers::dump(@$event->connection->nativeQuery("$cmd $event->sql"), TRUE);
+					$explain = @Helpers::dump($connection->nativeQuery("$cmd $event->sql"), TRUE);
 				} catch (Dibi\Exception $e) {
 				}
-				list($event->connection->onEvent, \dibi::$numOfQueries, \dibi::$totalTime) = $backup;
+				list($connection->onEvent, \dibi::$numOfQueries, \dibi::$totalTime) = $backup;
 			}
-			$s .= '<tr><td>' . sprintf('%0.3f', $event->time * 1000);
+			$s .= '<tr><td>' . number_format($event->time * 1000, 3, '.', ' ');
 			if ($explain) {
 				static $counter;
 				$counter++;
@@ -131,17 +135,19 @@ class Panel implements Tracy\IBarPanel
 				$s .= Tracy\Helpers::editorLink($event->source[0], $event->source[1]);//->class('tracy-DibiProfiler-source');
 			}
-			$s .= "</td><td>{$event->count}</td><td>{$h($event->connection->getConfig('driver') . '/' . $event->connection->getConfig('name'))}</td></tr>";
+			$s .= "</td><td>{$event->count}</td></tr>";
 		}
-		return empty($this->events) ? '' :
+		return '<style> #tracy-debug td.tracy-DibiProfiler-sql { background: white !important }
 			'<style> #tracy-debug td.tracy-DibiProfiler-sql { background: white !important }
 			#tracy-debug .tracy-DibiProfiler-source { color: #999 !important }
 			#tracy-debug tracy-DibiProfiler tr table { margin: 8px 0; max-height: 150px; overflow:auto } </style>
-			<h1>Queries: ' . count($this->events) . ($totalTime === NULL ? '' : sprintf(', time: %0.3f ms', $totalTime * 1000)) . '</h1>
+			<h1>Queries: ' . count($this->events)
 				. ($totalTime === NULL ? '' : ', time: ' . number_format($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>
-				<tr><th>Time&nbsp;ms</th><th>SQL Statement</th><th>Rows</th><th>Connection</th></tr>' . $s . '
+				<tr><th>Time&nbsp;ms</th><th>SQL Statement</th><th>Rows</th></tr>' . $s . '
 			</table>
 			</div>';
 	}
--- a/src/Dibi/Connection.php
+++ b/src/Dibi/Connection.php
@@ -97,7 +97,7 @@ class Connection
 		$this->config = $config;
 		// profiler
-		$profilerCfg = & $config['profiler'];
+		$profilerCfg = &$config['profiler'];
 		if (is_scalar($profilerCfg)) {
 			$profilerCfg = ['run' => (bool) $profilerCfg];
 		}
@@ -204,7 +204,7 @@ class Connection
 	/** @deprecated */
-	public static function alias(& $config, $key, $alias)
+	public static function alias(&$config, $key, $alias)
 	{
 		trigger_error(__METHOD__ . '() is deprecated, use Helpers::alias().', E_USER_DEPRECATED);
 		Helpers::alias($config, $key, $alias);
@@ -225,7 +225,7 @@ class Connection
 	/**
 	 * Generates (translates) and executes SQL query.
 	 * @param  array|mixed      one or more arguments
-	 * @return Result|int   result set object (if any)
+	 * @return Result|int   result set or number of affected rows
 	 * @throws Exception
 	 */
 	final public function query($args)
@@ -303,7 +303,7 @@ class Connection
 	/**
 	 * Executes the SQL query.
 	 * @param  string           SQL statement.
-	 * @return Result|int   result set object (if any)
+	 * @return Result|int   result set or number of affected rows
 	 * @throws Exception
 	 */
 	final public function nativeQuery($sql)
@@ -473,7 +473,7 @@ class Connection
 	/**
-	 * @param  string    column name
+	 * @param  mixed    column name
 	 * @return Fluent
 	 */
 	public function select($args)
@@ -555,7 +555,7 @@ class Connection
 	/**
 	 * Executes SQL query and fetch result - shortcut for query() & fetch().
 	 * @param  array|mixed    one or more arguments
-	 * @return Row|bool
+	 * @return Row|FALSE
 	 * @throws Exception
 	 */
 	public function fetch($args)
@@ -581,7 +581,7 @@ class Connection
 	/**
 	 * Executes SQL query and fetch first column - shortcut for query() & fetchSingle().
 	 * @param  array|mixed    one or more arguments
-	 * @return string|bool
+	 * @return mixed
 	 * @throws Exception
 	 */
 	public function fetchSingle($args)
--- a/src/Dibi/DataSource.php
+++ b/src/Dibi/DataSource.php
@@ -40,10 +40,10 @@ class DataSource implements IDataSource
 	/** @var array */
 	private $conds = [];
-	/** @var int */
+	/** @var int|NULL */
 	private $offset;
-	/** @var int */
+	/** @var int|NULL */
 	private $limit;
@@ -118,7 +118,7 @@ class DataSource implements IDataSource
 	/**
 	 * Limits number of rows.
-	 * @param  int limit
+	 * @param  int|NULL limit
 	 * @param  int offset
 	 * @return self
 	 */
@@ -168,7 +168,7 @@ class DataSource implements IDataSource
 	/**
 	 * Generates, executes SQL query and fetches the single row.
-	 * @return Row|FALSE  array on success, FALSE if no next record
+	 * @return Row|FALSE
 	 */
 	public function fetch()
 	{
--- a/src/Dibi/DateTime.php
+++ b/src/Dibi/DateTime.php
@@ -15,6 +15,9 @@ class DateTime extends \DateTime
 {
 	use Strict;
 	/**
 	 * @param  string|int
 	 */
 	public function __construct($time = 'now', \DateTimeZone $timezone = NULL)
 	{
 		if (is_numeric($time)) {
--- a/src/Dibi/Drivers/FirebirdDriver.php
+++ b/src/Dibi/Drivers/FirebirdDriver.php
@@ -28,16 +28,16 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	const ERROR_EXCEPTION_THROWN = -836;
-	/** @var resource  Connection resource */
+	/** @var resource|NULL */
 	private $connection;
-	/** @var resource  Resultset resource */
+	/** @var resource|NULL */
 	private $resultSet;
 	/** @var bool */
 	private $autoFree = TRUE;
-	/** @var resource  Resultset resource */
+	/** @var resource|NULL */
 	private $transaction;
 	/** @var bool */
@@ -60,7 +60,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public function connect(array & $config)
+	public function connect(array &$config)
 	{
 		Dibi\Helpers::alias($config, 'database', 'db');
@@ -123,6 +123,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 		} elseif (is_resource($res)) {
 			return $this->createResultDriver($res);
 		}
 		return NULL;
 	}
@@ -215,7 +216,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Returns the connection resource.
-	 * @return resource
+	 * @return resource|NULL
 	 */
 	public function getResource()
 	{
@@ -260,24 +261,40 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeBinary($value)
 	{
 		return "'" . str_replace("'", "''", $value) . "'";
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeIdentifier($value)
 	{
 		return '"' . str_replace('"', '""', $value). '"';
 	}
 	/**
 	 * @param  bool
 	 * @return string
 	 */
 	public function escapeBool($value)
 	{
-		return $value ? 1 : 0;
+		return $value ? '1' : '0';
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDate($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -287,6 +304,10 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDateTime($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -329,9 +350,12 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
 	 * @param  int|NULL
 	 * @param  int|NULL
 	 * @return void
 	 */
-	public function applyLimit(& $sql, $limit, $offset)
+	public function applyLimit(&$sql, $limit, $offset)
 	{
 		if ($limit > 0 || $offset > 0) {
 			// http://www.firebirdsql.org/refdocs/langrefupd20-select.html
@@ -411,7 +435,7 @@ class FirebirdDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Returns the result set resource.
-	 * @return resource
+	 * @return resource|NULL
 	 */
 	public function getResultResource()
 	{
--- a/src/Dibi/Drivers/MsSqlDriver.php
+++ b/src/Dibi/Drivers/MsSqlDriver.php
@@ -26,10 +26,10 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 {
 	use Dibi\Strict;
-	/** @var resource  Connection resource */
+	/** @var resource|NULL */
 	private $connection;
-	/** @var resource  Resultset resource */
+	/** @var resource|NULL */
 	private $resultSet;
 	/** @var bool */
@@ -52,7 +52,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public function connect(array & $config)
+	public function connect(array &$config)
 	{
 		if (isset($config['resource'])) {
 			$this->connection = $config['resource'];
@@ -98,6 +98,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 		} elseif (is_resource($res)) {
 			return $this->createResultDriver($res);
 		}
 		return NULL;
 	}
@@ -164,7 +165,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Returns the connection resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResource()
 	{
@@ -200,7 +201,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Encodes data for use in a SQL statement.
-	 * @param  mixed     value
+	 * @param  string    value
 	 * @return string    encoded value
 	 */
 	public function escapeText($value)
@@ -209,12 +210,20 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeBinary($value)
 	{
 		return "'" . str_replace("'", "''", $value) . "'";
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeIdentifier($value)
 	{
 		// @see https://msdn.microsoft.com/en-us/library/ms176027.aspx
@@ -222,12 +231,20 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  bool
 	 * @return string
 	 */
 	public function escapeBool($value)
 	{
-		return $value ? 1 : 0;
+		return $value ? '1' : '0';
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDate($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -237,6 +254,10 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDateTime($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -280,9 +301,12 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
 	 * @param  int|NULL
 	 * @param  int|NULL
 	 * @return void
 	 */
-	public function applyLimit(& $sql, $limit, $offset)
+	public function applyLimit(&$sql, $limit, $offset)
 	{
 		if ($offset) {
 			throw new Dibi\NotSupportedException('Offset is not supported by this database.');
@@ -375,7 +399,7 @@ class MsSqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Returns the result set resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResultResource()
 	{
--- a/src/Dibi/Drivers/MySqlDriver.php
+++ b/src/Dibi/Drivers/MySqlDriver.php
@@ -36,10 +36,10 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	const ERROR_DUPLICATE_ENTRY = 1062;
 	const ERROR_DATA_TRUNCATED = 1265;
-	/** @var resource  Connection resource */
+	/** @var resource|NULL */
 	private $connection;
-	/** @var resource  Resultset resource */
+	/** @var resource|NULL */
 	private $resultSet;
 	/** @var bool */
@@ -65,7 +65,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public function connect(array & $config)
+	public function connect(array &$config)
 	{
 		if (isset($config['resource'])) {
 			$this->connection = $config['resource'];
@@ -243,7 +243,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Returns the connection resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResource()
 	{
@@ -279,7 +279,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Encodes data for use in a SQL statement.
-	 * @param  mixed     value
+	 * @param  string    value
 	 * @return string    encoded value
 	 */
 	public function escapeText($value)
@@ -291,6 +291,10 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeBinary($value)
 	{
 		if (!is_resource($this->connection)) {
@@ -300,6 +304,10 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeIdentifier($value)
 	{
 		// @see http://dev.mysql.com/doc/refman/5.0/en/identifiers.html
@@ -307,12 +315,20 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  bool
 	 * @return string
 	 */
 	public function escapeBool($value)
 	{
 		return $value ? 1 : 0;
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDate($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -322,6 +338,10 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDateTime($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -365,9 +385,12 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
 	 * @param  int|NULL
 	 * @param  int|NULL
 	 * @return void
 	 */
-	public function applyLimit(& $sql, $limit, $offset)
+	public function applyLimit(&$sql, $limit, $offset)
 	{
 		if ($limit < 0 || $offset < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
@@ -469,7 +492,7 @@ class MySqlDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Returns the result set resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResultResource()
 	{
--- a/src/Dibi/Drivers/MySqliDriver.php
+++ b/src/Dibi/Drivers/MySqliDriver.php
@@ -37,10 +37,10 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	const ERROR_DUPLICATE_ENTRY = 1062;
 	const ERROR_DATA_TRUNCATED = 1265;
-	/** @var mysqli  Connection resource */
+	/** @var \mysqli|NULL */
 	private $connection;
-	/** @var mysqli_result  Resultset resource */
+	/** @var \mysqli_result|NULL */
 	private $resultSet;
 	/** @var bool */
@@ -66,7 +66,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public function connect(array & $config)
+	public function connect(array &$config)
 	{
 		mysqli_report(MYSQLI_REPORT_OFF);
 		if (isset($config['resource'])) {
@@ -93,8 +93,8 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 				}
 			}
-			$foo = & $config['flags'];
+			$foo = &$config['flags'];
-			$foo = & $config['database'];
+			$foo = &$config['database'];
 			$this->connection = mysqli_init();
 			if (isset($config['options'])) {
@@ -158,6 +158,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 		} elseif (is_object($res)) {
 			return $this->createResultDriver($res);
 		}
 		return NULL;
 	}
@@ -258,7 +259,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Returns the connection resource.
-	 * @return mysqli
+	 * @return \mysqli
 	 */
 	public function getResource()
 	{
@@ -278,7 +279,6 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Result set driver factory.
 	 * @param  mysqli_result
 	 * @return Dibi\ResultDriver
 	 */
 	public function createResultDriver(\mysqli_result $resource)
@@ -294,7 +294,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Encodes data for use in a SQL statement.
-	 * @param  mixed     value
+	 * @param  string    value
 	 * @return string    encoded value
 	 */
 	public function escapeText($value)
@@ -303,24 +303,40 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeBinary($value)
 	{
 		return "_binary'" . mysqli_real_escape_string($this->connection, $value) . "'";
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeIdentifier($value)
 	{
 		return '`' . str_replace('`', '``', $value) . '`';
 	}
 	/**
 	 * @param  bool
 	 * @return string
 	 */
 	public function escapeBool($value)
 	{
-		return $value ? 1 : 0;
+		return $value ? '1' : '0';
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDate($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -330,6 +346,10 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDateTime($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -373,9 +393,12 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
 	 * @param  int|NULL
 	 * @param  int|NULL
 	 * @return void
 	 */
-	public function applyLimit(& $sql, $limit, $offset)
+	public function applyLimit(&$sql, $limit, $offset)
 	{
 		if ($limit < 0 || $offset < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
@@ -488,7 +511,7 @@ class MySqliDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Returns the result set resource.
-	 * @return mysqli_result
+	 * @return \mysqli_result|NULL
 	 */
 	public function getResultResource()
 	{
--- a/src/Dibi/Drivers/OdbcDriver.php
+++ b/src/Dibi/Drivers/OdbcDriver.php
@@ -25,10 +25,10 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 {
 	use Dibi\Strict;
-	/** @var resource  Connection resource */
+	/** @var resource|NULL */
 	private $connection;
-	/** @var resource  Resultset resource */
+	/** @var resource|NULL */
 	private $resultSet;
 	/** @var bool */
@@ -57,7 +57,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public function connect(array & $config)
+	public function connect(array &$config)
 	{
 		if (isset($config['resource'])) {
 			$this->connection = $config['resource'];
@@ -110,6 +110,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 			$this->affectedRows = odbc_num_rows($res);
 			return $this->createResultDriver($res);
 		}
 		return NULL;
 	}
@@ -189,7 +190,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Returns the connection resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResource()
 	{
@@ -225,7 +226,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Encodes data for use in a SQL statement.
-	 * @param  mixed     value
+	 * @param  string    value
 	 * @return string    encoded value
 	 */
 	public function escapeText($value)
@@ -234,24 +235,40 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeBinary($value)
 	{
 		return "'" . str_replace("'", "''", $value) . "'";
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeIdentifier($value)
 	{
 		return '[' . str_replace(['[', ']'], ['[[', ']]'], $value) . ']';
 	}
 	/**
 	 * @param  bool
 	 * @return string
 	 */
 	public function escapeBool($value)
 	{
-		return $value ? 1 : 0;
+		return $value ? '1' : '0';
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDate($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -261,6 +278,10 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDateTime($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -304,9 +325,12 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
 	 * @param  int|NULL
 	 * @param  int|NULL
 	 * @return void
 	 */
-	public function applyLimit(& $sql, $limit, $offset)
+	public function applyLimit(&$sql, $limit, $offset)
 	{
 		if ($offset) {
 			throw new Dibi\NotSupportedException('Offset is not supported by this database.');
@@ -413,7 +437,7 @@ class OdbcDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Returns the result set resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResultResource()
 	{
--- a/src/Dibi/Drivers/OracleDriver.php
+++ b/src/Dibi/Drivers/OracleDriver.php
@@ -29,10 +29,10 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 {
 	use Dibi\Strict;
-	/** @var resource  Connection resource */
+	/** @var resource|NULL */
 	private $connection;
-	/** @var resource  Resultset resource */
+	/** @var resource|NULL */
 	private $resultSet;
 	/** @var bool */
@@ -64,9 +64,9 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public function connect(array & $config)
+	public function connect(array &$config)
 	{
-		$foo = & $config['charset'];
+		$foo = &$config['charset'];
 		$this->fmtDate = isset($config['formatDate']) ? $config['formatDate'] : 'U';
 		$this->fmtDateTime = isset($config['formatDateTime']) ? $config['formatDateTime'] : 'U';
@@ -123,6 +123,7 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 			$err = oci_error($this->connection);
 			throw new Dibi\DriverException($err['message'], $err['code'], $sql);
 		}
 		return NULL;
 	}
@@ -212,7 +213,7 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Returns the connection resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResource()
 	{
@@ -248,7 +249,7 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Encodes data for use in a SQL statement.
-	 * @param  mixed     value
+	 * @param  string    value
 	 * @return string    encoded value
 	 */
 	public function escapeText($value)
@@ -257,12 +258,20 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeBinary($value)
 	{
 		return "'" . str_replace("'", "''", $value) . "'"; // TODO: not tested
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeIdentifier($value)
 	{
 		// @see http://download.oracle.com/docs/cd/B10500_01/server.920/a96540/sql_elements9a.htm
@@ -270,12 +279,20 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	}
 	/**
 	 * @param  bool
 	 * @return string
 	 */
 	public function escapeBool($value)
 	{
-		return $value ? 1 : 0;
+		return $value ? '1' : '0';
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDate($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -285,6 +302,10 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDateTime($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -329,9 +350,12 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
 	 * @param  int|NULL
 	 * @param  int|NULL
 	 * @return void
 	 */
-	public function applyLimit(& $sql, $limit, $offset)
+	public function applyLimit(&$sql, $limit, $offset)
 	{
 		if ($limit < 0 || $offset < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
@@ -427,7 +451,7 @@ class OracleDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Returns the result set resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResultResource()
 	{
--- a/src/Dibi/Drivers/PdoDriver.php
+++ b/src/Dibi/Drivers/PdoDriver.php
@@ -30,7 +30,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	/** @var PDO  Connection resource */
 	private $connection;
-	/** @var \PDOStatement  Resultset resource */
+	/** @var \PDOStatement|NULL  Resultset resource */
 	private $resultSet;
 	/** @var int|FALSE  Affected rows */
@@ -40,7 +40,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	private $driverName;
 	/** @var string */
-	private $serverVersion;
+	private $serverVersion = '';
 	/**
@@ -59,10 +59,10 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public function connect(array & $config)
+	public function connect(array &$config)
 	{
-		$foo = & $config['dsn'];
+		$foo = &$config['dsn'];
-		$foo = & $config['options'];
+		$foo = &$config['options'];
 		Dibi\Helpers::alias($config, 'resource', 'pdo');
 		if ($config['resource'] instanceof PDO) {
@@ -112,7 +112,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 		if (isset($list[$cmd])) {
 			$this->affectedRows = $this->connection->exec($sql);
 			if ($this->affectedRows !== FALSE) {
-				return;
+				return NULL;
 			}
 		} else {
 			$res = $this->connection->query($sql);
@@ -254,7 +254,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Encodes data for use in a SQL statement.
-	 * @param  mixed     value
+	 * @param  string    value
 	 * @return string    encoded value
 	 */
 	public function escapeText($value)
@@ -267,6 +267,10 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeBinary($value)
 	{
 		if ($this->driverName === 'odbc') {
@@ -277,6 +281,10 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeIdentifier($value)
 	{
 		switch ($this->driverName) {
@@ -304,16 +312,24 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  bool
 	 * @return string
 	 */
 	public function escapeBool($value)
 	{
 		if ($this->driverName === 'pgsql') {
 			return $value ? 'TRUE' : 'FALSE';
 		} else {
-			return $value ? 1 : 0;
+			return $value ? '1' : '0';
 		}
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDate($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -323,6 +339,10 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDateTime($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -394,9 +414,12 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
 	 * @param  int|NULL
 	 * @param  int|NULL
 	 * @return void
 	 */
-	public function applyLimit(& $sql, $limit, $offset)
+	public function applyLimit(&$sql, $limit, $offset)
 	{
 		if ($limit < 0 || $offset < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
@@ -548,7 +571,7 @@ class PdoDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Returns the result set resource.
-	 * @return \PDOStatement
+	 * @return \PDOStatement|NULL
 	 */
 	public function getResultResource()
 	{
--- a/src/Dibi/Drivers/PostgreDriver.php
+++ b/src/Dibi/Drivers/PostgreDriver.php
@@ -26,10 +26,10 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 {
 	use Dibi\Strict;
-	/** @var resource  Connection resource */
+	/** @var resource|NULL */
 	private $connection;
-	/** @var resource  Resultset resource */
+	/** @var resource|NULL */
 	private $resultSet;
 	/** @var bool */
@@ -55,7 +55,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public function connect(array & $config)
+	public function connect(array &$config)
 	{
 		$error = NULL;
 		if (isset($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'])) {
@@ -145,6 +145,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 				return $this->createResultDriver($res);
 			}
 		}
 		return NULL;
 	}
@@ -256,7 +257,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Returns the connection resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResource()
 	{
@@ -292,7 +293,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Encodes data for use in a SQL statement.
-	 * @param  mixed     value
+	 * @param  string    value
 	 * @return string    encoded value
 	 */
 	public function escapeText($value)
@@ -304,6 +305,10 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeBinary($value)
 	{
 		if (!is_resource($this->connection)) {
@@ -313,6 +318,10 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeIdentifier($value)
 	{
 		// @see http://www.postgresql.org/docs/8.2/static/sql-syntax-lexical.html#SQL-SYNTAX-IDENTIFIERS
@@ -320,12 +329,20 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	}
 	/**
 	 * @param  bool
 	 * @return string
 	 */
 	public function escapeBool($value)
 	{
 		return $value ? 'TRUE' : 'FALSE';
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDate($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -335,6 +352,10 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDateTime($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -380,9 +401,12 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
 	 * @param  int|NULL
 	 * @param  int|NULL
 	 * @return void
 	 */
-	public function applyLimit(& $sql, $limit, $offset)
+	public function applyLimit(&$sql, $limit, $offset)
 	{
 		if ($limit < 0 || $offset < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
@@ -475,7 +499,7 @@ class PostgreDriver implements Dibi\Driver, Dibi\ResultDriver, Dibi\Reflector
 	/**
 	 * Returns the result set resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResultResource()
 	{
--- a/src/Dibi/Drivers/Sqlite3Driver.php
+++ b/src/Dibi/Drivers/Sqlite3Driver.php
@@ -27,10 +27,10 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 {
 	use Dibi\Strict;
-	/** @var SQLite3  Connection resource */
+	/** @var SQLite3|NULL */
 	private $connection;
-	/** @var \SQLite3Result  Resultset resource */
+	/** @var \SQLite3Result|NULL */
 	private $resultSet;
 	/** @var bool */
@@ -59,7 +59,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public function connect(array & $config)
+	public function connect(array &$config)
 	{
 		Dibi\Helpers::alias($config, 'database', 'file');
 		$this->fmtDate = isset($config['formatDate']) ? $config['formatDate'] : 'U';
@@ -118,6 +118,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 		} elseif ($res instanceof \SQLite3Result) {
 			return $this->createResultDriver($res);
 		}
 		return NULL;
 	}
@@ -209,7 +210,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Returns the connection resource.
-	 * @return mixed
+	 * @return SQLite3
 	 */
 	public function getResource()
 	{
@@ -245,7 +246,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Encodes data for use in a SQL statement.
-	 * @param  mixed     value
+	 * @param  string    value
 	 * @return string    encoded value
 	 */
 	public function escapeText($value)
@@ -254,24 +255,40 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeBinary($value)
 	{
 		return "X'" . bin2hex((string) $value) . "'";
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeIdentifier($value)
 	{
 		return '[' . strtr($value, '[]', '  ') . ']';
 	}
 	/**
 	 * @param  bool
 	 * @return string
 	 */
 	public function escapeBool($value)
 	{
-		return $value ? 1 : 0;
+		return $value ? '1' : '0';
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDate($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -281,6 +298,10 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDateTime($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -324,9 +345,12 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
 	 * @param  int|NULL
 	 * @param  int|NULL
 	 * @return void
 	 */
-	public function applyLimit(& $sql, $limit, $offset)
+	public function applyLimit(&$sql, $limit, $offset)
 	{
 		if ($limit < 0 || $offset < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
@@ -431,7 +455,7 @@ class Sqlite3Driver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Returns the result set resource.
-	 * @return mixed
+	 * @return \SQLite3Result|NULL
 	 */
 	public function getResultResource()
 	{
--- a/src/Dibi/Drivers/SqlsrvDriver.php
+++ b/src/Dibi/Drivers/SqlsrvDriver.php
@@ -29,10 +29,10 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 {
 	use Dibi\Strict;
-	/** @var resource  Connection resource */
+	/** @var resource|NULL */
 	private $connection;
-	/** @var resource  Resultset resource */
+	/** @var resource|NULL */
 	private $resultSet;
 	/** @var bool */
@@ -42,7 +42,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	private $affectedRows = FALSE;
 	/** @var string */
-	private $version;
+	private $version = '';
 	/**
@@ -61,7 +61,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	 * @return void
 	 * @throws Dibi\Exception
 	 */
-	public function connect(array & $config)
+	public function connect(array &$config)
 	{
 		Helpers::alias($config, 'options|UID', 'username');
 		Helpers::alias($config, 'options|PWD', 'password');
@@ -122,6 +122,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 			$this->affectedRows = sqlsrv_rows_affected($res);
 			return $this->createResultDriver($res);
 		}
 		return NULL;
 	}
@@ -188,7 +189,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Returns the connection resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResource()
 	{
@@ -224,7 +225,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Encodes data for use in a SQL statement.
-	 * @param  mixed     value
+	 * @param  string    value
 	 * @return string    encoded value
 	 */
 	public function escapeText($value)
@@ -233,12 +234,20 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeBinary($value)
 	{
 		return "'" . str_replace("'", "''", $value) . "'";
 	}
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	public function escapeIdentifier($value)
 	{
 		// @see https://msdn.microsoft.com/en-us/library/ms176027.aspx
@@ -246,12 +255,20 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  bool
 	 * @return string
 	 */
 	public function escapeBool($value)
 	{
-		return $value ? 1 : 0;
+		return $value ? '1' : '0';
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDate($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -261,6 +278,10 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	}
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	public function escapeDateTime($value)
 	{
 		if (!$value instanceof \DateTime && !$value instanceof \DateTimeInterface) {
@@ -304,14 +325,17 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
 	 * @param  int|NULL
 	 * @param  int|NULL
 	 * @return void
 	 */
-	public function applyLimit(& $sql, $limit, $offset)
+	public function applyLimit(&$sql, $limit, $offset)
 	{
 		if ($limit < 0 || $offset < 0) {
 			throw new Dibi\NotSupportedException('Negative offset or limit.');
-		} elseif (version_compare($this->version, 11, '<')) { // 11 == SQL Server 2012
+		} elseif (version_compare($this->version, '11', '<')) { // 11 == SQL Server 2012
 			if ($offset) {
 				throw new Dibi\NotSupportedException('Offset is not supported by this database.');
@@ -405,7 +429,7 @@ class SqlsrvDriver implements Dibi\Driver, Dibi\ResultDriver
 	/**
 	 * Returns the result set resource.
-	 * @return mixed
+	 * @return resource|NULL
 	 */
 	public function getResultResource()
 	{
--- a/src/Dibi/Fluent.php
+++ b/src/Dibi/Fluent.php
@@ -130,19 +130,19 @@ class Fluent implements IDataSource
 			if (isset(self::$masks[$clause])) {
 				$this->clauses = array_fill_keys(self::$masks[$clause], NULL);
 			}
-			$this->cursor = & $this->clauses[$clause];
+			$this->cursor = &$this->clauses[$clause];
 			$this->cursor = [];
 			$this->command = $clause;
 		}
 		// auto-switch to a clause
 		if (isset(self::$clauseSwitches[$clause])) {
-			$this->cursor = & $this->clauses[self::$clauseSwitches[$clause]];
+			$this->cursor = &$this->clauses[self::$clauseSwitches[$clause]];
 		}
 		if (array_key_exists($clause, $this->clauses)) {
 			// append to clause
-			$this->cursor = & $this->clauses[$clause];
+			$this->cursor = &$this->clauses[$clause];
 			// TODO: really delete?
 			if ($args === [self::REMOVE]) {
@@ -211,7 +211,7 @@ class Fluent implements IDataSource
 	 */
 	public function clause($clause)
 	{
-		$this->cursor = & $this->clauses[self::$normalizer->$clause];
+		$this->cursor = &$this->clauses[self::$normalizer->$clause];
 		if ($this->cursor === NULL) {
 			$this->cursor = [];
 		}
@@ -300,7 +300,7 @@ class Fluent implements IDataSource
 	/**
 	 * Generates and executes SQL query.
 	 * @param  mixed what to return?
-	 * @return Result|int  result set object (if any)
+	 * @return Result|int  result set or number of affected rows
 	 * @throws Exception
 	 */
 	public function execute($return = NULL)
@@ -319,7 +319,7 @@ class Fluent implements IDataSource
 	/**
 	 * Generates, executes SQL query and fetches the single row.
-	 * @return Row|FALSE  array on success, FALSE if no next record
+	 * @return Row|FALSE
 	 */
 	public function fetch()
 	{
@@ -512,10 +512,10 @@ class Fluent implements IDataSource
 	{
 		// remove references
 		foreach ($this->clauses as $clause => $val) {
-			$this->clauses[$clause] = & $val;
+			$this->clauses[$clause] = &$val;
 			unset($val);
 		}
-		$this->cursor = & $foo;
+		$this->cursor = &$foo;
 	}
 }
--- a/src/Dibi/Helpers.php
+++ b/src/Dibi/Helpers.php
@@ -50,14 +50,14 @@ 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 => $foo) {
-						echo "\t\t<th>" . htmlSpecialChars($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 $col) {
-					echo "\t\t<td>", htmlSpecialChars($col), "</td>\n";
+					echo "\t\t<td>", htmlSpecialChars((string) $col), "</td>\n";
 				}
 				echo "\t</tr>\n";
 			}
@@ -220,11 +220,11 @@ class Helpers
 	 * @param  string alias key
 	 * @return void
 	 */
-	public static function alias(& $config, $key, $alias)
+	public static function alias(&$config, $key, $alias)
 	{
-		$foo = & $config;
+		$foo = &$config;
 		foreach (explode('|', $key) as $key) {
-			$foo = & $foo[$key];
+			$foo = &$foo[$key];
 		}
 		if (!isset($foo) && isset($config[$alias])) {
--- a/src/Dibi/Reflection/Column.php
+++ b/src/Dibi/Reflection/Column.php
@@ -19,10 +19,10 @@ use Dibi\Type;
 * @property-read Table $table
 * @property-read string $type
 * @property-read mixed $nativeType
- * @property-read int $size
+ * @property-read int|NULL $size
- * @property-read bool $unsigned
+ * @property-read bool|NULL $unsigned
- * @property-read bool $nullable
+ * @property-read bool|NULL $nullable
- * @property-read bool $autoIncrement
+ * @property-read bool|NULL $autoIncrement
 * @property-read mixed $default
 */
 class Column
@@ -83,7 +83,7 @@ class Column
 	/**
-	 * @return string
+	 * @return string|NULL
 	 */
 	public function getTableName()
 	{
@@ -101,7 +101,7 @@ class Column
 	/**
-	 * @return mixed
+	 * @return string
 	 */
 	public function getNativeType()
 	{
@@ -110,7 +110,7 @@ class Column
 	/**
-	 * @return int
+	 * @return int|NULL
 	 */
 	public function getSize()
 	{
@@ -119,7 +119,7 @@ class Column
 	/**
-	 * @return bool
+	 * @return bool|NULL
 	 */
 	public function isUnsigned()
 	{
@@ -128,7 +128,7 @@ class Column
 	/**
-	 * @return bool
+	 * @return bool|NULL
 	 */
 	public function isNullable()
 	{
@@ -137,7 +137,7 @@ class Column
 	/**
-	 * @return bool
+	 * @return bool|NULL
 	 */
 	public function isAutoIncrement()
 	{
--- a/src/Dibi/Result.php
+++ b/src/Dibi/Result.php
@@ -184,7 +184,7 @@ 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 array on success, FALSE if no next record
+	 * @return Row|FALSE
 	 */
 	final public function fetch()
 	{
@@ -271,7 +271,7 @@ class Result implements IDataSource
 		}
 		$data = NULL;
-		$assoc = preg_split('#(\[\]|->|=|\|)#', $assoc, NULL, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+		$assoc = preg_split('#(\[\]|->|=|\|)#', $assoc, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
 		// check columns
 		foreach ($assoc as $as) {
@@ -291,12 +291,12 @@ class Result implements IDataSource
 		// make associative tree
 		do {
-			$x = & $data;
+			$x = &$data;
 			// iterative deepening
 			foreach ($assoc as $i => $as) {
 				if ($as === '[]') { // indexed-array node
-					$x = & $x[];
+					$x = &$x[];
 				} elseif ($as === '=') { // "value" node
 					$x = $row->{$assoc[$i + 1]};
@@ -305,14 +305,14 @@ class Result implements IDataSource
 				} elseif ($as === '->') { // "object" node
 					if ($x === NULL) {
 						$x = clone $row;
-						$x = & $x->{$assoc[$i + 1]};
+						$x = &$x->{$assoc[$i + 1]};
 						$x = NULL; // prepare child node
 					} else {
-						$x = & $x->{$assoc[$i + 1]};
+						$x = &$x->{$assoc[$i + 1]};
 					}
 				} elseif ($as !== '|') { // associative-array node
-					$x = & $x[$row->$as];
+					$x = &$x[$row->$as];
 				}
 			}
@@ -356,32 +356,32 @@ class Result implements IDataSource
 		}
 		do {
-			$x = & $data;
+			$x = &$data;
 			foreach ($assoc as $i => $as) {
 				if ($as === '#') { // indexed-array node
-					$x = & $x[];
+					$x = &$x[];
 				} elseif ($as === '=') { // "record" node
 					if ($x === NULL) {
 						$x = $row->toArray();
-						$x = & $x[ $assoc[$i + 1] ];
+						$x = &$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) {
 						$x = clone $row;
-						$x = & $x->{$assoc[$i + 1]};
+						$x = &$x->{$assoc[$i + 1]};
 						$x = NULL; // prepare child node
 					} else {
-						$x = & $x->{$assoc[$i + 1]};
+						$x = &$x->{$assoc[$i + 1]};
 					}
 				} else { // associative-array node
-					$x = & $x[$row->$as];
+					$x = &$x[$row->$as];
 				}
 			}
@@ -483,7 +483,7 @@ class Result implements IDataSource
 	 * @param  array
 	 * @return void
 	 */
-	private function normalize(array & $row)
+	private function normalize(array &$row)
 	{
 		foreach ($this->types as $key => $type) {
 			if (!isset($row[$key])) { // NULL
@@ -499,7 +499,7 @@ class Result implements IDataSource
 					: $tmp;
 			} elseif ($type === Type::FLOAT) {
-				$value = ltrim($value, '0');
+				$value = ltrim((string) $value, '0');
 				$p = strpos($value, '.');
 				if ($p !== FALSE) {
 					$value = rtrim(rtrim($value, '0'), '.');
@@ -558,9 +558,9 @@ class Result implements IDataSource
 	/**
-	 * Sets data format.
+	 * Sets date format.
-	 * @param  string  type (use constant Type::*)
+	 * @param  string
-	 * @param  string  format
+	 * @param  string|NULL  format
 	 * @return self
 	 */
 	final public function setFormat($type, $format)
@@ -572,7 +572,7 @@ class Result implements IDataSource
 	/**
 	 * Returns data format.
-	 * @return string
+	 * @return string|NULL
 	 */
 	final public function getFormat($type)
 	{
--- a/src/Dibi/ResultIterator.php
+++ b/src/Dibi/ResultIterator.php
@@ -27,7 +27,7 @@ class ResultIterator implements \Iterator, \Countable
 	/** @var Result */
 	private $result;
-	/** @var int */
+	/** @var mixed */
 	private $row;
 	/** @var int */
--- a/src/Dibi/Strict.php
+++ b/src/Dibi/Strict.php
@@ -105,7 +105,7 @@ trait Strict
 	/**
 	 * @param  string  method name
-	 * @param  callabke
+	 * @param  callable
 	 * @return mixed
 	 */
 	public static function extensionMethod($name, $callback = NULL)
@@ -131,7 +131,7 @@ trait Strict
 		$list = & self::$extMethods[strtolower($name)];
 		if ($callback === NULL) { // getter
-			$cache = & $list[''][$class];
+			$cache = &$list[''][$class];
 			if (isset($cache)) {
 				return $cache;
 			}
--- a/src/Dibi/Translator.php
+++ b/src/Dibi/Translator.php
@@ -73,8 +73,8 @@ final class Translator
 		$commandIns = NULL;
 		$lastArr = NULL;
-		$cursor = & $this->cursor;
+		$cursor = &$this->cursor;
-		$comment = & $this->comment;
+		$comment = &$this->comment;
 		// iterate
 		$sql = [];
@@ -246,7 +246,7 @@ final class Translator
 				case 'in':// replaces scalar %in modifier!
 				case 'l': // (val, val, ...)
 					foreach ($value as $k => $v) {
-						$pair = explode('%', $k, 2); // split into identifier & modifier
+						$pair = explode('%', (string) $k, 2); // split into identifier & modifier
 						$vx[] = $this->formatValue($v, isset($pair[1]) ? $pair[1] : (is_array($v) ? 'ex' : FALSE));
 					}
 					return '(' . (($vx || $modifier === 'l') ? implode(', ', $vx) : 'NULL') . ')';
@@ -316,7 +316,7 @@ final class Translator
 			if ($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);
@@ -326,7 +326,7 @@ final class Translator
 			switch ($modifier) {
 				case 's':  // string
-					return $value === NULL ? 'NULL' : $this->driver->escapeText($value);
+					return $value === NULL ? 'NULL' : $this->driver->escapeText((string) $value);
 				case 'bin':// binary
 					return $value === NULL ? 'NULL' : $this->driver->escapeBinary($value);
@@ -336,7 +336,7 @@ final class Translator
 				case 'sN': // string or NULL
 				case 'sn':
-					return $value == '' ? 'NULL' : $this->driver->escapeText($value); // notice two equal signs
+					return $value == '' ? 'NULL' : $this->driver->escapeText((string) $value); // notice two equal signs
 				case 'in': // deprecated
 					trigger_error('Modifier %in is deprecated, use %iN.', E_USER_DEPRECATED);
@@ -480,7 +480,7 @@ final class Translator
 		if (!empty($matches[11])) { // placeholder
-			$cursor = & $this->cursor;
+			$cursor = &$this->cursor;
 			if ($cursor >= count($this->args)) {
 				return $this->errors[] = '**Extra placeholder**';
@@ -492,7 +492,7 @@ final class Translator
 		if (!empty($matches[10])) { // modifier
 			$mod = $matches[10];
-			$cursor = & $this->cursor;
+			$cursor = &$this->cursor;
 			if ($cursor >= count($this->args) && $mod !== 'else' && $mod !== 'end') {
 				return $this->errors[] = "**Extra modifier %$mod**";
@@ -600,7 +600,7 @@ final class Translator
 	{
 		$value = $this->connection->substitute($value);
 		$parts = explode('.', $value);
-		foreach ($parts as & $v) {
+		foreach ($parts as &$v) {
 			if ($v !== '*') {
 				$v = $this->driver->escapeIdentifier($v);
 			}
--- a/src/Dibi/dibi.php
+++ b/src/Dibi/dibi.php
@@ -22,8 +22,8 @@ class dibi
 	/** version */
 	const
-		VERSION = '3.0.7',
+		VERSION = '3.0.9',
-		REVISION = 'released on 2017-01-04';
+		REVISION = 'released on 2018-03-09';
 	/** sorting order */
 	const
@@ -90,7 +90,7 @@ class dibi
 	 * @return Dibi\Connection
 	 * @throws Dibi\Exception
 	 */
-	public static function connect($config = [], $name = 0)
+	public static function connect($config = [], $name = '0')
 	{
 		return self::$connection = self::$registry[$name] = new Dibi\Connection($config, $name);
 	}
@@ -167,7 +167,7 @@ class dibi
 	/**
 	 * Generates and executes SQL query - Monostate for Dibi\Connection::query().
 	 * @param  array|mixed      one or more arguments
-	 * @return Dibi\Result|int   result set object (if any)
+	 * @return Dibi\Result|int   result set or number of affected rows
 	 * @throws Dibi\Exception
 	 */
 	public static function query($args)
@@ -180,7 +180,7 @@ class dibi
 	/**
 	 * Executes the SQL query - Monostate for Dibi\Connection::nativeQuery().
 	 * @param  string           SQL statement.
-	 * @return Dibi\Result|int   result set object (if any)
+	 * @return Dibi\Result|int   result set or number of affected rows
 	 */
 	public static function nativeQuery($sql)
 	{
@@ -241,7 +241,7 @@ class dibi
 	/**
 	 * Executes SQL query and fetch first column - Monostate for Dibi\Connection::query() & fetchSingle().
 	 * @param  array|mixed    one or more arguments
-	 * @return string
+	 * @return mixed
 	 * @throws Dibi\Exception
 	 */
 	public static function fetchSingle($args)
@@ -382,7 +382,7 @@ class dibi
 	/**
-	 * @param  string    column name
+	 * @param  mixed    column name
 	 * @return Dibi\Fluent
 	 */
 	public static function select($args)
--- a/src/Dibi/exceptions.php
+++ b/src/Dibi/exceptions.php
@@ -23,7 +23,7 @@ class Exception extends \Exception
 	 * @param  mixed
 	 * @param  string  SQL command
 	 */
-	public function __construct($message = NULL, $code = 0, $sql = NULL)
+	public function __construct($message = '', $code = 0, $sql = NULL)
 	{
 		parent::__construct($message);
 		$this->code = $code;
--- a/src/Dibi/interfaces.php
+++ b/src/Dibi/interfaces.php
@@ -30,7 +30,7 @@ interface Driver
 	 * @return void
 	 * @throws Exception
 	 */
-	function connect(array & $config);
+	function connect(array &$config);
 	/**
 	 * Disconnects from a database.
@@ -97,19 +97,39 @@ interface Driver
 	/**
 	 * Encodes data for use in a SQL statement.
-	 * @param  mixed     value
+	 * @param  string    value
 	 * @return string    encoded value
 	 */
 	function escapeText($value);
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	function escapeBinary($value);
 	/**
 	 * @param  string
 	 * @return string
 	 */
 	function escapeIdentifier($value);
 	/**
 	 * @param  bool
 	 * @return string
 	 */
 	function escapeBool($value);
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	function escapeDate($value);
 	/**
 	 * @param  \DateTime|\DateTimeInterface|string|int
 	 * @return string
 	 */
 	function escapeDateTime($value);
 	/**
@@ -122,9 +142,12 @@ interface Driver
 	/**
 	 * Injects LIMIT/OFFSET to the SQL query.
 	 * @param  string
 	 * @param  int|NULL
 	 * @param  int|NULL
 	 * @return void
 	 */
-	function applyLimit(& $sql, $limit, $offset);
+	function applyLimit(&$sql, $limit, $offset);
 }
--- a/src/loader.php
+++ b/src/loader.php
@@ -66,7 +66,6 @@ spl_autoload_register(function ($class) {
 		'Dibi\Translator' => 'Translator.php',
 		'Dibi\Type' => 'Type.php',
 	], $old2new = [
 		'Dibi' => 'dibi.php',
 		'DibiColumnInfo' => 'Dibi\Reflection\Column',
 		'DibiConnection' => 'Dibi\Connection',
 		'DibiDatabaseInfo' => 'Dibi\Reflection\Database',
--- a/tests/databases.appveyor.ini
+++ b/tests/databases.appveyor.ini
@@ -73,13 +73,13 @@ system = sqlsrv
 ;password = "Password12!"
 ;system = sqlsrv
-[sqlsrv 2014]
+;[sqlsrv 2014]
-driver = sqlsrv
+;driver = sqlsrv
-host = "(local)\SQL2014"
+;host = "(local)\SQL2014"
-database = master
+;database = master
-username = sa
+;username = sa
-password = "Password12!"
+;password = "Password12!"
-system = sqlsrv
+;system = sqlsrv
 ;[sqlsrv 2014-pdo]
 ;driver = pdo
--- a/tests/dibi/Connection.connect.phpt
+++ b/tests/dibi/Connection.connect.phpt
@@ -29,7 +29,7 @@ test(function () use ($config) { // lazy
 test(function () use ($config) { // query string
-	$conn = new Connection(http_build_query($config, NULL, '&'));
+	$conn = new Connection(http_build_query($config, '', '&'));
 	Assert::true($conn->isConnected());
 	Assert::null($conn->getConfig('lazy'));
--- a/tests/dibi/Fluent.fetch.limit.mssql.phpt
+++ b/tests/dibi/Fluent.fetch.limit.mssql.phpt
@@ -10,7 +10,7 @@ class MockDriver extends Dibi\Drivers\SqlsrvDriver
 	function __construct()
 	{}
-	function connect(array & $config)
+	function connect(array &$config)
 	{}
 	function query($sql)
--- a/tests/dibi/Result.normalize.phpt
+++ b/tests/dibi/Result.normalize.phpt
@@ -15,7 +15,7 @@ class MockResult extends Dibi\Result
 	{
 		$normalize = new ReflectionMethod('Dibi\Result', 'normalize');
 		$normalize->setAccessible(TRUE);
-		$normalize->invokeArgs($this, [& $row]);
+		$normalize->invokeArgs($this, [&$row]);
 		return $row;
 	}
 }
Author	SHA1	Message	Date
David Grudl	e8559898f1	Released version 3.0.9	2018-03-09 12:56:49 +01:00
David Grudl	ece85e8b48	appveyor: PHP is downloaded using cURL "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."	2018-03-08 13:53:10 +01:00
David Grudl	acd5ac8616	loader: fixed missing class 'dibi.php'	2018-02-15 11:54:37 +01:00
David Grudl	44876973f5	Translator: fixed %dt with DateTimeInterface object [Closes #263 ]	2017-09-21 14:05:20 +02:00
David Grudl	0e5d951dfb	Released version 3.0.8	2017-06-10 03:05:18 +02:00
David Grudl	126422ad7e	strict fixes	2017-06-10 03:05:18 +02:00
David Grudl	277f52c928	appveyor: is unable to start MSSQL 2012 & 2014 together	2017-06-10 02:58:47 +02:00
David Grudl	80ac569621	fixed phpDoc	2017-06-10 02:58:47 +02:00
David Grudl	d9628f933d	coding style: removed space after reference &	2017-06-10 02:58:47 +02:00
David Grudl	f7009f3e0c	Tracy\Panel: better typography	2017-06-10 02:58:47 +02:00
Jiří Trávníček	36d30c1fcf	Dibi\Bridges\Tracy\Panel: host added to tracy panel [closes #250 ] (#251 )	2017-06-10 02:58:44 +02:00
David Grudl	ae6c8756b6	Tracy\Panel: one panel is used per connection	2017-06-10 02:58:06 +02:00
David Grudl	6b2c996b16	Tracy\Panel: dump() may fails related: https://forum.nette.org/cs/26790-error-dibi-bridges-tracy-panel-oracle `917971992f (commitcomment-18444224)`	2017-06-09 12:12:07 +02:00
David Grudl	718c617764	travis: removed HHVM	2017-06-09 12:12:07 +02:00
David Grudl	6194152e67	examples: tracy is loaded before output [Closes #248 ]	2017-06-09 12:12:07 +02:00
David Grudl	d39603e23d	updated .gitattributes	2017-06-09 12:12:07 +02:00