On Jan 19, 11:03pm, camili...@gmail.com wrote:
> hello.
> I'm building a site using php I have a setup.php page wich has at the
> begining session_start();
> and every single page from my site includes setup.php. When a user
> registers I save in $_SESSION["Login"] the userName, so that when !
> isset($_SESSION["Login"]) I can redirect him to the login.php page.
> After some inactivityperiod, e.g. 20 min, I need that user to be
> automatically logged off. Besides I need to keep track of the users
> that are online in that moment, so the logout should run some server-
> side script too. Can anyone give me some ideas??

You could save the username as a and set a expiry time e.g
set("username", "user", "/", "EXPIRY TIME");

Then for each page they load do a set to keep it refreshed with
the timelimit.