What is the proper way to logout from php http authentication?

What is the proper way to logout from php http authentication?

 

For what script are you using this or do you mean the session in which case its

session_destroy();

 

and for overkill you can unset all the session vars
unset($SESSION['blah']);

 

its suprisingly simple to logout of a PHP based-system, I always thought it would be more complicated

 

Whatever method you use to login (sessions, cookies (which should only be used for 'Remember Me' functionality))..you do the opposite for logging out e.g. instead of creating a session you destroy/unset (unset(), session_destroy()) the current session (used when logging in).

http://php.net/manual/en/function.session-destroy.php

http://www.php.net/manual/en/function.unset.php