Clear session on browser exit for php - php

Question

I am working on a PHP project where in I need to clear the seesion on click browser close.
My project :
Index.php -> userdata.php -> reports.php ->finalreport.html
is it possible to handle session destroy?
I need to clear session , whenever user exits browser while they are in any page.
Please let me know how can we handle this.

Answer 1

the session is destroyed when the user closes the browser**. if you want to destroy it as soon as the user unloads the page, you could add a handler to the page unload event (something like jquery unload) and do a ajax request to a script that just clears the session.
EDIT: per OP's request, i'll add specific code.
1) in all pages (Index.php, userdata.php, reports.php, finalreport.html) add this javascript code
$(window).unload(function() {
$.get('session_destroyer.php');
});
2) in session_destroyer.php use this code (taken from php.net)
<?php
// Initialize the session.
// If you are using session_name("something"), don't forget it now!
session_start();
// Unset all of the session variables.
$_SESSION = array();
// If it's desired to kill the session, also delete the session cookie.
// Note: This will destroy the session, and not just the session data!
if (ini_get("session.use_cookies")) {
$params = session_get_cookie_params();
setcookie(session_name(), '', time() - 42000,
$params["path"], $params["domain"],
$params["secure"], $params["httponly"]
);
}
// Finally, destroy the session.
session_destroy();
?>
hope this helps
** NOTE: as one commenter noted, this assumes you're using cookie-based sessions (which is the default in PHP, i think)