<?php
//whether ip is from share internet
if (!empty($_SERVER['HTTP_CLIENT_IP']))
{
$ip_address = $_SERVER['HTTP_CLIENT_IP'];
}
//whether ip is from proxy
elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
{
$ip_address = $_SERVER['HTTP_X_FORWARDED_FOR'];
}
//whether ip is from remote address
else
{
$ip_address = $_SERVER['REMOTE_ADDR'];
}
echo $ip_address;
echo $_SERVER['HTTP_X_FORWARDED_FOR'];
$_SERVER['HTTP_CLIENT_IP'];
?>
Warning: Undefined array key "REMOTE_ADDR" in /in/qCRH5 on line 15
Warning: Undefined array key "HTTP_X_FORWARDED_FOR" in /in/qCRH5 on line 18
Warning: Undefined array key "HTTP_CLIENT_IP" in /in/qCRH5 on line 19
Notice: Undefined index: REMOTE_ADDR in /in/qCRH5 on line 15
Notice: Undefined index: HTTP_X_FORWARDED_FOR in /in/qCRH5 on line 18
Notice: Undefined index: HTTP_CLIENT_IP in /in/qCRH5 on line 19
Notice: Undefined index: REMOTE_ADDR in /in/qCRH5 on line 15
Notice: Undefined index: HTTP_X_FORWARDED_FOR in /in/qCRH5 on line 18
Notice: Undefined index: HTTP_CLIENT_IP in /in/qCRH5 on line 19