Possible Duplicate:
Get referrer URL - visitors coming from Paypal (HTTPS)
i'm trying to track my visitors, i'm using with $_SERVER[HTTP_REFERER]
,
i have some problem, when users come from https refferal the $_SERVER[HTTP_REFERER]
disappear In iOS 6.
in this case, how can i know if user come from refferer or direct, is there another way to know if users come directly ?