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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_CodeGenerator
  * @subpackage Php
  * @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    $Id$
  */
 
 /**
  * A value-holder object for non-expressable parameter default values, such as null, booleans and empty array()
  *
  * @category   Zend
  * @package    Zend_CodeGenerator
  * @subpackage Php
  * @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_CodeGenerator_Php_Parameter_DefaultValue
 {
     /**
      * @var string
      */
     protected $_defaultValue = null;
 
     /**
      *
      * @param string $defaultValue
      * @throws Zend_CodeGenerator_Php_Exception
      */
     public function __construct($defaultValue)
     {
         if(!is_string($defaultValue)) {
             // require_once "Zend/CodeGenerator/Php/Exception.php";
             throw new Zend_CodeGenerator_Php_Exception(
                 "Can only set a string as default value representation, ".
                 "but ".gettype($defaultValue)." was given."
             );
         }
         $this->_defaultValue = $defaultValue;
     }
 
     public function __toString()
     {
         return $this->_defaultValue;
     }
 }