sfWebResponse::getHttpHeaders PHP Method

    public function getHttpHeaders()
    {
        return $this->headers;
    }

 /**
  * Copies all properties from a given sfWebResponse object to the current one.
  *
  * @param sfWebResponse $response  An sfWebResponse instance
  */
 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';
 }