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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_Json
  * @subpackage Expr
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * Class for Zend_Json encode method.
  *
  * This class simply holds a string with a native Javascript Expression,
  * so objects | arrays to be encoded with Zend_Json can contain native
  * Javascript Expressions.
  *
  * Example:
  * <code>
  * $foo = array(
  *     'integer'  =>9,
  *     'string'   =>'test string',
  *     'function' => Zend_Json_Expr(
  *         'function(){ window.alert("javascript function encoded by Zend_Json") }'
  *     ),
  * );
  *
  * Zend_Json::encode($foo, false, array('enableJsonExprFinder' => true));
  * // it will returns json encoded string:
  * // {"integer":9,"string":"test string","function":function(){window.alert("javascript function encoded by Zend_Json")}}
  * </code>
  *
  * @category   Zend
  * @package    Zend_Json
  * @subpackage Expr
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Json_Expr
 {
     /**
      * Storage for javascript expression.
      *
      * @var string
      */
     protected $_expression;
 
     /**
      * Constructor
      *
      * @param  string $expression the expression to hold.
      * @return void
      */
     public function __construct($expression)
     {
         $this->_expression = (string) $expression;
     }
 
     /**
      * Cast to string
      *
      * @return string holded javascript expression.
      */
     public function __toString()
     {
         return $this->_expression;
     }
 }