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Limiting access to a specific page

Posted: Tue Nov 13, 2007 4:17 am
by bmccon79
Hi,
I'm fairly new to PHP and was wondering what the best way (or if there even is one?) to limit the access to a specific page depending on the page that the person has come from? I've tried using the $HTTP_REFERER variable but have read that this is unreliable as it can be spoofed and that many browsers and firewalls bl;ock this information from being sent.
Any help would be appreciated greatly!