96 lines
2.4 KiB
PHP
96 lines
2.4 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend
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* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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/**
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* @category Zend
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* @package Zend
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* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Exception extends Exception
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{
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/**
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* @var null|Exception
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*/
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private $_previous = null;
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/**
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* Construct the exception
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*
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* @param string $msg
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* @param int $code
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* @param Exception $previous
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* @return void
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*/
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public function __construct($msg = '', $code = 0, Exception $previous = null)
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{
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if (version_compare(PHP_VERSION, '5.3.0', '<')) {
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parent::__construct($msg, (int) $code);
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$this->_previous = $previous;
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} else {
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parent::__construct($msg, (int) $code, $previous);
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}
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}
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/**
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* Overloading
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*
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* For PHP < 5.3.0, provides access to the getPrevious() method.
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*
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* @param string $method
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* @param array $args
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* @return mixed
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*/
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public function __call($method, array $args)
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{
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if ('getprevious' == strtolower($method)) {
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return $this->_getPrevious();
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}
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return null;
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}
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/**
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* String representation of the exception
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*
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* @return string
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*/
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public function __toString()
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{
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if (version_compare(PHP_VERSION, '5.3.0', '<')) {
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if (null !== ($e = $this->getPrevious())) {
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return $e->__toString()
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. "\n\nNext "
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. parent::__toString();
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}
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}
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return parent::__toString();
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}
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/**
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* Returns previous Exception
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*
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* @return Exception|null
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*/
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protected function _getPrevious()
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{
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return $this->_previous;
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}
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}
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