sfWebResponse::copyProperties PHP Method

    public function copyProperties(sfWebResponse $response)
    {
        $this->options = $response->getOptions();
        $this->headers = $response->getHttpHeaders();
        $this->metas = $response->getMetas();
        $this->httpMetas = $response->getHttpMetas();
        $this->stylesheets = $response->getStylesheets(self::RAW);
        $this->javascripts = $response->getJavascripts(self::RAW);
        $this->slots = $response->getSlots();
        // HTTP protocol must be from the current request
        // this fix is not nice but that's the only way to fix it and keep BC (see #9254)
        $this->options['http_protocol'] = isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0';
    }

 /**
  * Copies all properties from a given opWebResponse object to the current one.
  *
  * @param sfWebResponse $response  An sfWebResponse instance
  *
  * @see sfWebResponse->copyProperties()
  */
 public function copyProperties(sfWebResponse $response)
 {
     parent::copyProperties($response);
     if ($response instanceof opWebResponse) {
         $this->smtStylesheets = $response->getSmtStylesheets(self::RAW);
         $this->smtJavascripts = $response->getSmtJavascripts(self::RAW);
     }
 }