Hey all,
I was trying to learn how to do a logout function (not just have dreamweaver do it for me). I got the code to work, but I don't completely understand what it's doing. I've got it set up as follows:
The link the user sees is the following:
<li><a href="logout.php">Log Out</a></li>
The logout page is build as follows:
<?php
//start the session
session_start();
session_unset();
session_destroy();
header( "Location: ../index.php" );
?>
OK, so now with this working and it redirecting the user to the correct page, the many tutorials and books I used to try and learn this didn't do a good job explaining what this is doing (just what to do). So, my question is, since I don't see any reference to the session that is open when the user is logged in on the logout page, how does this page know what session to destroy? For example, when I tested this I was logged into this page and the Adobe site, this logout page only logged me out of the site it was in, and not the Adobe site. How does this know that it was that session to end and not the Adobe session?
Also, the last line header("Location: ../index.php"); is a line that I've never seen before. I know this is a redirect line, but why does it use "header" in the beginning of the line?
Thank you very much for your help.
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