从任何应用程序位置获取GET参数（Symfony2）

Question

I'm new in Symfony, but I see that it's very good framework. Now I'm working with Yii and some moments in Symfony can't understand... Sorry)

How can I take GET-parameter from any controller (for example ?ref=), processing it parameter (save REF ID in session) and return current user for current page but without this GET-parameter?

Answer 1

1. Create an event listener that listens on kernel.request event.
2. Check if given URL contains required parameter, and handle it according to your needs.

3. Return a redirect response to the very same URL but without ref parameter:

    public function onKernelRequest(GetResponseEvent $event) { if (!$event->isMasterRequest()) { return; } if (!$event->getRequest()->query->has('ref')) { return; } $ref = $event->getRequest()->query->get('ref'); // do whatever you need $url = ...; // prepare redirect URL $event->setResponse(new RedirectResponse($url)); } 

Answer 2

You need to use next construction:

http://example?ref=123


public function indexAction(Request $request)
{
    $ref = $request->query->get('ref');
}