> I am using Sessions to secure parts of my website. I need to know if
> there is a way to set a lifetime for these sessions , so that they are
> automatically destroyed when say the user is inactive for 30 minutes.

It's already there, the session.gc_maxlifetime setting (default is 1440
seconds). 

Actually, this will only work if garbage_collection works on your
server. It's all explained on the session page.

If gc doesn't work on your system, then register a timestamp in the
session that get's updated with each action. Then just look for
timestamps over 30 minutes old and make them log in again.

---John W. Holmes...

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