Viewing all session variables

[RobbieMc]

Is there anyway in PHP to access all active Session variables?

[Znupi]

umm..

print_r($_SESSION); 

or maybe:

foreach ($_SESSION as $key => $value) {
   echo 'Session var "' . $key . '" is equal to "' . $value . '"<br>';
} 

Does that help?

[RobbieMc]

Sorry, I phrased the question terribly. Can you see the session variables for the other browsers visiting the site. For example, can you get all the values of $_SESSION["userID"] to see which users are online?

[Znupi]

Short answer: No.

Long(ish) answer: Yes, but it would be an immense headache. You would have to find the session files on the hard disk, try to open them, decode them and read the userID.

I suppose you have a mysql table somewhere that holds your users? If not, create one and make sure it has a column with a timestamp which gets updated to NOW() on each pageview. Then, to show online users just show from that table users that have the timestamp set to NOW() - 5 minutes or more.

If you need any help on that, let us know.