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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_View
  * @subpackage Helper
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 
 /** Zend_View_Helper_Abstract */
 // require_once 'Zend/View/Helper/Abstract.php';
 
 /**
  * Helper for interacting with UserAgent instance
  *
  * @package    Zend_View
  * @subpackage Helper
  * @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_View_Helper_UserAgent extends Zend_View_Helper_Abstract
 {
     /**
      * UserAgent instance
      *
      * @var Zend_Http_UserAgent
      */
     protected $_userAgent = null;
 
     /**
      * Helper method: retrieve or set UserAgent instance
      *
      * @param  null|Zend_Http_UserAgent $userAgent
      * @return Zend_Http_UserAgent
      */
     public function userAgent(Zend_Http_UserAgent $userAgent = null)
     {
         if (null !== $userAgent) {
             $this->setUserAgent($userAgent);
         }
         return $this->getUserAgent();
     }
 
     /**
      * Set UserAgent instance
      *
      * @param  Zend_Http_UserAgent $userAgent
      * @return Zend_View_Helper_UserAgent
      */
     public function setUserAgent(Zend_Http_UserAgent $userAgent)
     {
         $this->_userAgent = $userAgent;
         return $this;
     }
 
     /**
      * Retrieve UserAgent instance
      *
      * If none set, instantiates one using no configuration
      *
      * @return Zend_Http_UserAgent
      */
     public function getUserAgent()
     {
         if (null === $this->_userAgent) {
             // require_once 'Zend/Http/UserAgent.php';
             $this->setUserAgent(new Zend_Http_UserAgent());
         }
         return $this->_userAgent;
     }
 }