<?php /** * Zend Framework * * LICENSE * * This source file is subject to the new BSD license that is bundled * with this package in the file LICENSE.txt. * It is also available through the world-wide-web at this URL: * http://framework.zend.com/license/new-bsd * If you did not receive a copy of the license and are unable to * obtain it through the world-wide-web, please send an email * to license@zend.com so we can send you a copy immediately. * * @category Zend * @package Zend * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License * @version $Id: Exception.php 24593 2012-01-05 20:35:02Z matthew $ */ /** * @category Zend * @package Zend * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ class Zend_Exception extends Exception { /** * @var null|Exception */ private $_previous = null; /** * Construct the exception * * @param string $msg * @param int $code * @param Exception $previous * @return void */ public function __construct($msg = '', $code = 0, Exception $previous = null) { if (version_compare(PHP_VERSION, '5.3.0', '<')) { parent::__construct($msg, (int) $code); $this->_previous = $previous; } else { parent::__construct($msg, (int) $code, $previous); } } /** * Overloading * * For PHP < 5.3.0, provides access to the getPrevious() method. * * @param string $method * @param array $args * @return mixed */ public function __call($method, array $args) { if ('getprevious' == strtolower($method)) { return $this->_getPrevious(); } return null; } /** * String representation of the exception * * @return string */ public function __toString() { if (version_compare(PHP_VERSION, '5.3.0', '<')) { if (null !== ($e = $this->getPrevious())) { return $e->__toString() . "\n\nNext " . parent::__toString(); } } return parent::__toString(); } /** * Returns previous Exception * * @return Exception|null */ protected function _getPrevious() { return $this->_previous; } }