Possible Duplicate:
Extending Session Timeout in PHP
I have php sessions where the problem I could have is that if for a long time I do not use the application, if I refresh the web browser, I suddenly get Notices on all my $_SESSION's. I want to know if it is possible that if I have not used a web page for a long time, that if I refresh a page, the $_SESSIONs remain intact?
I know the @ symbol can be used but is that only to not show the error message? I just don't want it to ever stop the session.
Thanks