Sessions: 'ci_sessions' user_data

[eluser]Dam1an[/eluser]
Ah, this is something which has been discussed a few times in the forum
Basically you want to track the last_activity of a user which gets updated on every page request for that user. You could either extend the session table to have this or in the users table (or make a seperate table for this). Then when you need to find users currently online, just find the ones which have a recent_activity in the last X minutes.

If you need some more info just search the forums for some similar threads