php - Caching just the controller variables in Symfony2 - is this code a good idea? -

i'm not going able cache full html pages (dynamic content etc.), i'm thinking of this:

class controllerextension extends controller {     public function render($view, array $parameters = array(), response $response = null)     {          //cache $parameters , tie route name somehow         $the_cache['route_name'] = $parameters;          //then render normal         return parent::render($view, $parameters, $response);      }  } 

now, later requests make use of variables generated. make requests mobile app same url (and returns variables in json appending query param) - both reqest types too.

i use controller listener run controller checks if cached variables exists or something.

is idea , use cache variables? memcache?