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framework/thirdparty/Zend/Exception.php 2.5 KB
0084d336   Administrator   Importers CRUD
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  <?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) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
   * @license    http://framework.zend.com/license/new-bsd     New BSD License
   * @version    $Id: Exception.php 23775 2011-03-01 17:25:24Z ralph $
   */
  
  /**
  * @category   Zend
  * @package    Zend
  * @copyright  Copyright (c) 2005-2011 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;
      }
  }