Is this function enogh to get user ip?
function get_client_ip() {
if (isset($_SERVER['HTTP_CLIENT_IP'])) {
$ipaddress = $_SERVER['HTTP_CLIENT_IP'];
}
elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
}
elseif (isset($_SERVER['HTTP_X_FORWARDED'])) {
$ipaddress = $_SERVER['HTTP_X_FORWARDED'];
}
elseif (isset($_SERVER['HTTP_FORWARDED_FOR'])) {
$ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
}
elseif (isset($_SERVER['HTTP_FORWARDED'])) {
$ipaddress = $_SERVER['HTTP_FORWARDED'];
}
elseif (isset($_SERVER['REMOTE_ADDR'])) {
$ipaddress = $_SERVER['REMOTE_ADDR'];
}
else {
$ipaddress = null;
}
if (filter_var($ipaddress, FILTER_VALIDATE_IP)) {
return $ipaddress;
} else {
$ipaddress = null;
}
}
Thanks!