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I have a private web app with login requirements.
I have seen many sites (mainly forum sites) that list the members that are currently logged in and viewing the site.
I think I can devise a way to look at session vars datetime stamps and make some assumptions, but I was wondering if there was a standard way out there, or a trick that is used, to capture and display that info.
Not looking for code here (per se), just looking for the logic used to do it.
Thanks.
The most common approach is to just update a timestamp every time the user does something, and count her as logged out after a defined inactivity time.
You can use a session variable so you don’t have to update the timestamp in the database on every page load. In this variable, keep a timestamp of the last update, and when it’s over five minutes ago, update the timestamp in db and session.