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<?php | |
/** | |
* Zend Framework (http://framework.zend.com/) | |
* | |
* @link http://github.com/zendframework/zf2 for the canonical source repository | |
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com) | |
* @license http://framework.zend.com/license/new-bsd New BSD License | |
*/ | |
namespace Zend\Stdlib; | |
use ErrorException; | |
/** | |
* ErrorHandler that can be used to catch internal PHP errors | |
* and convert to a ErrorException instance. | |
*/ | |
abstract class ErrorHandler | |
{ | |
/** | |
* Active stack | |
* | |
* @var array | |
*/ | |
protected static $stack = array(); | |
/** | |
* Check if this error handler is active | |
* | |
* @return bool | |
*/ | |
public static function started() | |
{ | |
return (bool) static::getNestedLevel(); | |
} | |
/** | |
* Get the current nested level | |
* | |
* @return int | |
*/ | |
public static function getNestedLevel() | |
{ | |
return count(static::$stack); | |
} | |
/** | |
* Starting the error handler | |
* | |
* @param int $errorLevel | |
*/ | |
public static function start($errorLevel = \E_WARNING) | |
{ | |
if (!static::$stack) { | |
set_error_handler(array(get_called_class(), 'addError'), $errorLevel); | |
} | |
static::$stack[] = null; | |
} | |
/** | |
* Stopping the error handler | |
* | |
* @param bool $throw Throw the ErrorException if any | |
* @return null|ErrorException | |
* @throws ErrorException If an error has been catched and $throw is true | |
*/ | |
public static function stop($throw = false) | |
{ | |
$errorException = null; | |
if (static::$stack) { | |
$errorException = array_pop(static::$stack); | |
if (!static::$stack) { | |
restore_error_handler(); | |
} | |
if ($errorException && $throw) { | |
throw $errorException; | |
} | |
} | |
return $errorException; | |
} | |
/** | |
* Stop all active handler | |
* | |
* @return void | |
*/ | |
public static function clean() | |
{ | |
if (static::$stack) { | |
restore_error_handler(); | |
} | |
static::$stack = array(); | |
} | |
/** | |
* Add an error to the stack | |
* | |
* @param int $errno | |
* @param string $errstr | |
* @param string $errfile | |
* @param int $errline | |
* @return void | |
*/ | |
public static function addError($errno, $errstr = '', $errfile = '', $errline = 0) | |
{ | |
$stack = & static::$stack[count(static::$stack) - 1]; | |
$stack = new ErrorException($errstr, 0, $errno, $errfile, $errline, $stack); | |
} | |
} |