sessions -> show all active users

[Anon]

I want to display all active users on my site, and I'm using sessions. I don't know how to do it, the user security system is there and all, should I need some session information in the dB? how? help!

[Anon]

Log when users log in, log when users log out. If they don't logout, you can eighter have it automated (see tips&tricks) or suppose that they have left is they have been inactive for a certain number of minutes.

You should indeed use a db to hold all that information. Just hold the logged in user-data in your db... that is, login-time and session-id.