How do I expire a session?

[jessjenn]

After creating a session variable (using cookies), how do I expire it automatically after a given time. Sort of an expiration date rather than doing an unset(). Is it session_cache_expire($minutes) -- is it this? I thought this was used in versions 4.2.0 of PHP and lower.

Any advice is appreciated. Thanks!

[renaun]

From reading http://us3.php.net/manual/en/function.session-cache-expire.php its seems you are correct. Just remember the session_cache_expire(30); parameter is in minutes.