How to test if a session already exists?

Question

How can I test if a session exists in symfony?

Without the framework we proceed like this:

<?php

if( isset($_SESSION['login'])) {
  echo 'Bonjour '.$_SESSION['login'].' vous etes connecté.<br>';
}

?>

How to do so with the session service in the symfony controller with the Request object?

Answer 1

In Symfony, session service is an instance of Symfony\Component\HttpFoundation\Session\Session. That said, session does provide several method to either check or manipulate session.

In your particular case, you would do something like this:

$session = $request->getSession();

if ( $session->has('login')){
    $message = 'Bonjour '.$session->get('login').' vous etes connecté.<br>';
}

But, noting the comment from @Gerry, his question is a very valid one.

Hope this helps...