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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 39 | PointedEar | 1 | <?php |
| 2 | /** |
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| 3 | * Zend Framework (http://framework.zend.com/) |
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| 4 | * |
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| 5 | * @link http://github.com/zendframework/zf2 for the canonical source repository |
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| 6 | * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com) |
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| 7 | * @license http://framework.zend.com/license/new-bsd New BSD License |
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| 8 | */ |
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| 9 | |||
| 10 | namespace Zend\Stdlib; |
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| 11 | |||
| 12 | use ErrorException; |
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| 13 | |||
| 14 | /** |
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| 15 | * ErrorHandler that can be used to catch internal PHP errors |
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| 16 | * and convert to a ErrorException instance. |
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| 17 | */ |
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| 18 | abstract class ErrorHandler |
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| 19 | { |
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| 20 | /** |
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| 21 | * Active stack |
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| 22 | * |
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| 23 | * @var array |
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| 24 | */ |
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| 25 | protected static $stack = array(); |
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| 26 | |||
| 27 | /** |
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| 28 | * Check if this error handler is active |
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| 29 | * |
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| 30 | * @return boolean |
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| 31 | */ |
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| 32 | public static function started() |
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| 33 | { |
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| 34 | return (bool) static::getNestedLevel(); |
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| 35 | } |
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| 36 | |||
| 37 | /** |
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| 38 | * Get the current nested level |
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| 39 | * |
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| 40 | * @return int |
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| 41 | */ |
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| 42 | public static function getNestedLevel() |
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| 43 | { |
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| 44 | return count(static::$stack); |
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| 45 | } |
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| 46 | |||
| 47 | /** |
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| 48 | * Starting the error handler |
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| 49 | * |
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| 50 | * @param int $errorLevel |
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| 51 | */ |
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| 52 | public static function start($errorLevel = \E_WARNING) |
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| 53 | { |
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| 54 | if (!static::$stack) { |
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| 55 | set_error_handler(array(get_called_class(), 'addError'), $errorLevel); |
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| 56 | } |
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| 57 | |||
| 58 | static::$stack[] = null; |
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| 59 | } |
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| 60 | |||
| 61 | /** |
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| 62 | * Stopping the error handler |
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| 63 | * |
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| 64 | * @param bool $throw Throw the ErrorException if any |
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| 65 | * @return null|ErrorException |
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| 66 | * @throws ErrorException If an error has been catched and $throw is true |
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| 67 | */ |
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| 68 | public static function stop($throw = false) |
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| 69 | { |
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| 70 | $errorException = null; |
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| 71 | |||
| 72 | if (static::$stack) { |
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| 73 | $errorException = array_pop(static::$stack); |
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| 74 | |||
| 75 | if (!static::$stack) { |
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| 76 | restore_error_handler(); |
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| 77 | } |
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| 78 | |||
| 79 | if ($errorException && $throw) { |
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| 80 | throw $errorException; |
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| 81 | } |
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| 82 | } |
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| 83 | |||
| 84 | return $errorException; |
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| 85 | } |
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| 86 | |||
| 87 | /** |
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| 88 | * Stop all active handler |
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| 89 | * |
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| 90 | * @return void |
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| 91 | */ |
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| 92 | public static function clean() |
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| 93 | { |
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| 94 | if (static::$stack) { |
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| 95 | restore_error_handler(); |
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| 96 | } |
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| 97 | |||
| 98 | static::$stack = array(); |
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| 99 | } |
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| 100 | |||
| 101 | /** |
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| 102 | * Add an error to the stack |
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| 103 | * |
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| 104 | * @param int $errno |
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| 105 | * @param string $errstr |
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| 106 | * @param string $errfile |
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| 107 | * @param int $errline |
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| 108 | * @return void |
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| 109 | */ |
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| 110 | public static function addError($errno, $errstr = '', $errfile = '', $errline = 0) |
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| 111 | { |
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| 112 | $stack = & static::$stack[ count(static::$stack) - 1 ]; |
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| 113 | $stack = new ErrorException($errstr, 0, $errno, $errfile, $errline, $stack); |
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| 114 | } |
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| 115 | } |