Posted by Steven Paul on 08/21/06 20:40

I'm using

$ip = isset($_SERVER['HTTP_X_FORWARDED_FOR']) ?
$_SERVER['HTTP_X_FORWARDED_FOR'] : $_SERVER['REMOTE_ADDR'];

to get a visitor's IP address, but every once in a while I get
"unknown, unknown" instead of an address. Is there something I'm
leaving out?

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