在afterExecuteRoute中处理返回的值

Question

我想对控制器的returnedValue做一些事情，phalcon中的操作是我的代码：

 public function afterExecuteRoute(Dispatcher $dispatcher){
      $controllerName = $dispatcher->getControllerName();
      $actionName = $dispatcher-> getActionName ();
      $return = $dispatcher->getReturnedValue();
 }

$ return有这个值：

Phalcon\Http\Response Object(
  [_sent:protected] => 
  [_content:protected] => "{\"_meta\":{\"status\":\"SUCCESS\",\"count\":2}}"
  [_headers:protected] => Phalcon\Http\Response\Headers Object
      (
          [_headers:protected] => Array
              (
                  [Content-Type] => application/json; charset=UTF-8
              )

      )

  [_cookies:protected] => 
  [_file:protected] => 
  [_dependencyInjector:protected] => 
  [_statusCodes:protected] => 
)

如果说

，我如何获得_meta-＆gt;状态值？

Cannot access protected property Phalcon\Http\Response::$_content