[4456] | 1 | <?php |
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| 2 | /** |
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| 3 | * Zend Framework |
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| 4 | * |
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| 5 | * LICENSE |
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| 6 | * |
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| 7 | * This source file is subject to the new BSD license that is bundled |
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| 8 | * with this package in the file LICENSE.txt. |
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| 9 | * It is also available through the world-wide-web at this URL: |
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| 10 | * http://framework.zend.com/license/new-bsd |
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| 11 | * If you did not receive a copy of the license and are unable to |
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| 12 | * obtain it through the world-wide-web, please send an email |
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| 13 | * to license@zend.com so we can send you a copy immediately. |
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| 14 | * |
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| 15 | * @category Zend |
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| 16 | * @package Zend |
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| 17 | * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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| 18 | * @license http://framework.zend.com/license/new-bsd New BSD License |
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| 19 | * @version $Id: Exception.php 23484 2010-12-10 03:57:59Z mjh_ca $ |
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| 20 | */ |
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| 21 | |
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| 22 | /** |
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| 23 | * @category Zend |
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| 24 | * @package Zend |
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| 25 | * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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| 26 | * @license http://framework.zend.com/license/new-bsd New BSD License |
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| 27 | */ |
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| 28 | class Zend_Exception extends Exception |
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| 29 | { |
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| 30 | /** |
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| 31 | * @var null|Exception |
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| 32 | */ |
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| 33 | private $_previous = null; |
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| 34 | |
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| 35 | /** |
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| 36 | * Construct the exception |
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| 37 | * |
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| 38 | * @param string $msg |
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| 39 | * @param int $code |
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| 40 | * @param Exception $previous |
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| 41 | * @return void |
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| 42 | */ |
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| 43 | public function __construct($msg = '', $code = 0, Exception $previous = null) |
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| 44 | { |
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| 45 | if (version_compare(PHP_VERSION, '5.3.0', '<')) { |
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| 46 | parent::__construct($msg, (int) $code); |
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| 47 | $this->_previous = $previous; |
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| 48 | } else { |
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| 49 | parent::__construct($msg, (int) $code, $previous); |
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| 50 | } |
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| 51 | } |
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| 52 | |
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| 53 | /** |
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| 54 | * Overloading |
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| 55 | * |
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| 56 | * For PHP < 5.3.0, provides access to the getPrevious() method. |
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| 57 | * |
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| 58 | * @param string $method |
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| 59 | * @param array $args |
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| 60 | * @return mixed |
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| 61 | */ |
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| 62 | public function __call($method, array $args) |
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| 63 | { |
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| 64 | if ('getprevious' == strtolower($method)) { |
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| 65 | return $this->_getPrevious(); |
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| 66 | } |
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| 67 | return null; |
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| 68 | } |
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| 69 | |
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| 70 | /** |
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| 71 | * String representation of the exception |
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| 72 | * |
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| 73 | * @return string |
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| 74 | */ |
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| 75 | public function __toString() |
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| 76 | { |
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| 77 | if (version_compare(PHP_VERSION, '5.3.0', '<')) { |
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| 78 | if (null !== ($e = $this->getPrevious())) { |
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| 79 | return $e->__toString() |
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| 80 | . "\n\nNext " |
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| 81 | . parent::__toString(); |
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| 82 | } |
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| 83 | } |
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| 84 | return parent::__toString(); |
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| 85 | } |
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| 86 | |
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| 87 | /** |
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| 88 | * Returns previous Exception |
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| 89 | * |
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| 90 | * @return Exception|null |
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| 91 | */ |
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| 92 | protected function _getPrevious() |
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| 93 | { |
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| 94 | return $this->_previous; |
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| 95 | } |
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| 96 | } |
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