Zend_Http_Client::setCookieJar PHP Method

    public function setCookieJar($cookiejar = true)
    {
        Zend_Loader::loadClass('Zend_Http_CookieJar');
        if ($cookiejar instanceof Zend_Http_CookieJar) {
            $this->cookiejar = $cookiejar;
        } elseif ($cookiejar === true) {
            $this->cookiejar = new Zend_Http_CookieJar();
        } elseif (!$cookiejar) {
            $this->cookiejar = null;
        } else {
            /** @see Zend_Http_Client_Exception */
            require_once 'Zend/Http/Client/Exception.php';
            throw new Zend_Http_Client_Exception('Invalid parameter type passed as CookieJar');
        }
        return $this;
    }

 public static function logout()
 {
     $blogPath = SJB_Settings::getSettingByName('blog_path');
     if (empty($blogPath)) {
         return;
     }
     $url = SJB_System::getSystemSettings('SITE_URL') . $blogPath . '/';
     $client = new Zend_Http_Client($url, array('useragent' => SJB_Request::getUserAgent(), 'maxredirects' => 0));
     if (isset($_SESSION['wp_cookie_jar'])) {
         $client->setCookieJar(@unserialize($_SESSION['wp_cookie_jar']));
     }
     try {
         $response = $client->request();
         $matches = array();
         if (preg_match('/_wpnonce=([\\w\\d]+)"/', $response->getBody(), $matches)) {
             $wpnonce = $matches[1];
             $url = $url . 'wp-login.php?action=logout&_wpnonce=' . $wpnonce . '&noSJB=1';
             $client->setUri($url);
             $response = $client->request();
             foreach ($response->getHeaders() as $key => $header) {
                 if ('set-cookie' == strtolower($key)) {
                     if (is_array($header)) {
                         foreach ($header as $val) {
                             header("Set-Cookie: " . $val, false);
                         }
                     } else {
                         header("Set-Cookie: " . $header, false);
                     }
                 }
             }
         }
     } catch (Exception $ex) {
     }
 }