Hi everybody, I need help with sessions. I have a simple authentification relying only on sessions (i don't use cookies). After the user submits his username and password, the script checks if that corresponds to a record in a mysql table. If this is the case "$_SESSION['sessioname'] = $_POST['login'];". the $_SESSION['sessioname'] is checked in subsequent pages to see if the user is connected or not. The problem is after the user logs out, and after that uses the previous button of the browser he becomes connected. How can i prevent this please. Here is my logout.php: <?php session_start(); unset($_SESSION["sessioname"]); session_destroy(); header("location: index.php"); ?> Thank you for advance ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php