How can we destroy a session in PHP?

Question

Is there a way I can clear my session data from the browser? This is for debugging when I change something. Currently no matter what I do short of exiting the browser, my session data is always retained. This makes testing very cumbersome. I am using PHP/MySQL for development.

Answer 1

Though PHP automatically destroys a session after timeout or user has left the website. You may need to destroy certain variables, which purpose has been accomplished or a session completely in explicit way.

Syntax of destroying session variables

<?php

session_start(); 

if(isset($_SESSION[‘UserID’]))
    unset($_SESSION['UserID']);

if(isset($_SESSION[‘name’])) 
    unset($_SESSION['name']);

?>

Answer 2

session_destroy();
unset($_SESSION[""]);

These are the two functions which are used to destroy sessions in PHP.