{PHP} Determine Previous Page

[Dark Slipstream]

I'm looking to find a way to determine the page you just came from.

 

$_SERVER['HTTP_REFERER'] does not work all the time, and is editable. Since it's unreliable, I'm looking for a different way.

 

 

Thanks.

 

 

PS: It has to support being navigated to from a secure (https) page. It will only be allowing redirection from PayPal.

[iBotPeaches]

HTTP_REFERER is the only one I know.

 

You could use cookies or sessions, but thats assuming you know there coming from a website you own, which isn't likely. I'll do some more searching.