注销按钮不清除缓存值

Question

I have a logout.php which runs the following code. But it does not clear the session values completely. It redirects me to the homepage as it should. But when I click on back button then the previous page is displayed perfectly. I want to remove the cache values. How to do it?? Please help

 <?php session_start(); session_destroy(); header("location:home.php?msg=logout"); ?> 

Answer 1

First Check is your previous page has session_start(); because if your previous page has not this session_start(); on top your script it will loads.

now after destroying check actually session are destroyed or not.(obvious it must be destroyed.)

you can also use unset($_SESSION['var_name']); to destroy one session variable.

<?php
session_start(); 
session_destroy();
echo "<pre>";
print_r($_SESSION);
exit;
header("location:home.php?msg=logout");
?>