logout button

[webguync]

I have a login script that stores a session variable for username, and takes the user to a form. Once the form is submitted, they are taken to a results page. On that page, I want to create a login button that takes them back to the initial login page when they click on it.

 

Would the best way be to create a form with the submit button going to a page with code like this?

 

<?php
//start the session
session_start();

//check to make sure the session variable is registered
if(session_is_registered('username')){

//session variable is registered, the user is ready to logout
session_unset();
session_destroy();
}
else{

//the session variable isn't registered, the user shouldn't even be on this page
header( "Location: http://www.yourdomain.com/login.htm" );
}
?> 

[DarkWater]

Why make a submit button?  Just make a link to logout.php.

[webguync]

I suppose I could do that