Symfony2在会话中存储变量

Question

first of all, i'm working with symfony 2.0.20... and I have problems with the session. I'm doing that:

Get the session service:

$session = $this->get('session');

Save the vars (obviously criteria have some value):

$session->set('criteria', $criteria);

And I get the var like this:

$criteria = $session->get('criteria');

But, I never no data inside... any idea? And, in the chrome/firefox inspector I don't see anything and the "var_dump" the same...

Any help will be appreciated

Roger

Answer 1

did you start your session $session = new Session(); $session->start();

Answer 2

Make sure to use

use Symfony\Component\HttpFoundation\Request;

This is how I start a session in Symfony2

$session = $request->getSession();

This is how i set it

$session->set('products', $products);

This is how i get it

$session->get('products')

and in my config.yml

framework:
    session:
        cookie_lifetime: 86400
        gc_maxlifetime: 1800

I hope this helps.