How do I do a real time Unique Link Tracking I give out unique links based off IP <?php $ip = getenv("REMOTE_ADDR") ; $unique2 = str_replace(".", "", $ip); ?> http://www.sitehere.com/?id=<? echo $unique2; ?> How do I track this link? So if user sends link to someone and its clicked he is registered at 1. If 2nd unique ip clicks it its at 2. Basically That link it prints is his Unique Referral link, and I want to track each unique IP he sends to my site.