Check IP address using PHP

You can add this :


$ip = $_SERVER['REMOTE_ADDR'];


or this :

function getIP($type) {
if (getenv("HTTP_CLIENT_IP")
&& strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))
$ip = getenv("HTTP_CLIENT_IP");
else if (getenv("REMOTE_ADDR")
&& strcasecmp(getenv("REMOTE_ADDR"), "unknown"))
$ip = getenv("REMOTE_ADDR");
else if (getenv("HTTP_X_FORWARDED_FOR")
&& strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))
$ip = getenv("HTTP_X_FORWARDED_FOR");
else if (isset($_SERVER['REMOTE_ADDR'])
&& $_SERVER['REMOTE_ADDR']
&& strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))
$ip = $_SERVER['REMOTE_ADDR'];
else {
$ip = "unknown";
return $ip;
}
if ($type==1) {return md5($ip);}
if ($type==0) {return $ip;}
}

echo getIP(0);