How to clear session variables in symfony2

Question

I am setting session variable with this

$session->get('user_id'); 

I want to clear all session data or single variable. How can i do that

Answer 1

Visit this link

http://api.symfony.com/master/Symfony/Component/HttpFoundation/Session/Session.html#remove%28%29

$session->remove('user_id');

Answer 2

To clear all session data (attributes) you should use clear. Example:

$session->clear(); 

Please also see Symfony session attributes documentation.