session timeout and redirect

[neridaj]

Hello,

How do I redirect a user when the session has timed out? It never seems like my sessions timeout e.g., I can always comeback and resume where I left off instead of being redirected when a session has timed out. I know the default time is 20 minutes, but I don't know how to implement a redirect based on that.

Thanks for any help,

Jason

[shamly]

One way of checking if session has expired is to register a variable and assign a value to it. On every page check if that variable that you have registered is still there using

session_is_registered

and if the variable has the predefined value. This way if both are false you know that the session has expired.