如何在php中注销用户？

Question

Currently, in my php script, after an user logged in, i stored session_login = 1. But I have a problem. I have a habit in using firefox, multi-tab (i believe most people and all today web browsers app have multi-tab function). I closed the tab that has the session, but I didnt closed the browser. After few hours, I come back on the same page that require me to login, but it doesn't. It does not require me to login again(I think thats called "Session"). Is there anyway to logout the user if he close the tab instead close the browser??

I have 1 solution right now, time-idle kick out. But, I have very limited knowledge in date/time thing in php, so this would be the last option. I wanted to know, is there anything else i can do, beside using time-idle?

Answer 1

PHP has an easy way to set how long a session will last before it times out:

session_set_cookie_params(3600); // make it expire after 1 hour

Just pass it the number of seconds you want the session to last (in the example, 1 hour = 60 minutes = 3600 seconds).

http://us2.php.net/manual/en/function.session-set-cookie-params.php