Reliability of PHP'S $_SERVER['REMOTE_ADDR']

Question

I\'m building a site that is designed to be administered from localhost, but contains pages that expose data to internet or local network users. Can I rely on PHP\'s

Answer 1

No. It depends on the web server whether is serves up remote_addr or not.

RETRACT THAT...was thinking about HTTP_REFERER.

It should give you the ip address...yes. Remember there could be proxy's.