Get the visitor IP anyhow

<?
function SafIP() {
if (getenv('HTTP_CLIENT_IP')) {
$ip = getenv('HTTP_CLIENT_IP');
}else if (getenv('HTTP_X_FORWARDED_FOR')) {
$ip = getenv('HTTP_X_FORWARDED_FOR');
}else if (getenv('HTTP_X_FORWARDED')) {
$ip = getenv('HTTP_X_FORWARDED');
}else if (getenv('HTTP_FORWARDED_FOR')) {
$ip = getenv('HTTP_FORWARDED_FOR');
}else if (getenv('HTTP_FORWARDED')) {
$ip = getenv('HTTP_FORWARDED');
}else{
$ip = $_SERVER['REMOTE_ADDR'];
}
return $ip;
}
?>