Logout script with session management in php5

just create a logout.php script with the following

<?php
session_start();
session_destroy();

header("Location: index.php");
?>

Have your logout button/link/whatever just open that page which connects to the session with session_start. Session destroy does exactly what it sounds like... it unsets all session data and tells the server to end the session. The header request then just re-directs the user to whatever page you want after (just change out index.php)

if it doesnt take effect its probably not actualy exicuting your logout script right.

the main part would be that it does this... (eg. level session)
unset($_SESSION['level']);

as soon as thats happend the session should be gone

oo and its worth double looking out for having ..
session_start();
.. in there,
little line im always forgetting yet its so important