Catch an IP?

[jwk811]

How can you catch someones IP address when they're veiwing a page?

[php_joe]

use:
[b]$IP = $_SERVER['REMOTE_ADDR'];[/b]

Joe

[.josh]

FYI, that's not 100% reliable.  people can hide their ip address or change it. 

[php_joe]

Aside from death, what is 100% reliable? ;)

[.josh]

getting taxed.

[xsist10]

The closest I've come to 100% (call it 86.563%)

[code]
<?php

public function getValidIP() {
if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))
$ip = getenv("HTTP_CLIENT_IP");
else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))
$ip = getenv("HTTP_X_FORWARDED_FOR");
else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))
$ip = getenv("REMOTE_ADDR");
else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))
$ip = $_SERVER['REMOTE_ADDR'];
else
$ip = "unknown";
return($ip);
}

?>
[/code]