How to delete session cookies using PHP?

Question

I am trying to figure out if I can run my sessionpersistence script that I run with Apache to see if sessions persist between two tomcat sites on two separate servers. The load balancer has session persistence enabled but Iam unsure how to test it. My thought was that I would just add the following php script to check, but apparently I am doing something wrong. The script is this:

but it seems not to like it if I add it from the webapps directory or from inside a directory under that. Is there some special trick to running php from inside tomcat ? I have tomcat set up the same on both servers and am fronting it with Apache if that adds options for me.

Answer 1

Deleting cookies using the setcookie function in PHP:

The setcookie() function can actually accept up to six arguments, but only one argument is actually required — and that is the cookie name. If you use the setcookie function, and just pass a cookie name without a value, then it will have the same effect as deleting the existing cookie with the same exact name. For example, to create a cookie called first_name, you use this line:

setcookie('first_name', 'vrije'); 

And to delete the first_name cookie, you would do this:

Example of deleting a cookie in PHP:

setcookie('first_name');  

Answer 2

session_destroy — Destroys all data registered to a session

Here is the small example that show how to destroy a php session

<?php
// Initialize the session.
session_start();

// Unset all of the session variables.
$_SESSION = array();

//Do  the programming inside here

// Finally, destroy the session.
session_destroy();
?>