Telling a php session's name?

Question

I installed a pre-built forum on my website and I want (in a diffrent page) to check if the forum's session is active.
Something like :

if (isset($_SESSION['forum'])) { echo "Session is active!"; }

Problem is - I don't know the sessions name... Tried downloading some chrome add-ons for session managing but I can't get the name of the session.

Whats the right way of doing this?
Thanks ahead!

Answer 1

You can see the dump of $_SESSION variable

var_dump($_SESSION);

Answer 2

session_name() will give you the session name, that usually is defined in php.ini. By default it is always: PHPSESSID. This name is used as cookie name or as POST/GET variable name.

session_id() will give you the identifier for the current session. It will be the contents of the cookie or POST/GET variable.

Then you have $_SESSION that will contain all your session data. use print_r() to see what you have stored in it so far.

To know if session vars are set you can also just do if(isset($_SESSION)&&count($_SESSION))

Answer 3

try print_r ($_SESSION);

taht way you'll see all sessions

Answer 4

<?php 
session_start(); 
print_r($_SESSION);
?>

Use this to see which session variables are currently set.

Answer 5

You need to check that the session is currently active, and then that the forum key is defined

if ( ! ($sid = session_id()) {
    session_start();        // open session if not yet opened
    $sid = session_id();    // get sid as session ID
}

// $sid contains the session ID (in cookie)

if (isset($_SESSION['forum'])) {
    // forum is defined
}

See also the answer from this page