What's my IP

[kiss]

To show real ip behind a proxy, your server/vps must run to apache (no litespeed) and have HTTP_X_REAL_IP si HTTP_X_FORWARDED_FOR. Check with phpinfo()

function ip() {
  if ( isset( $_SERVER['HTTP_X_FORWARDED_FOR'] ) && filter_var( $_SERVER['HTTP_X_FORWARDED_FOR'], FILTER_VALIDATE_IP,
   FILTER_FLAG_NO_PRIV_RANGE ) ) {
   $_SERVER['REMOTE_ADDR'] = filter_var( $_SERVER['HTTP_X_FORWARDED_FOR'], FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE ) ;
  } else
   if ( isset( $_SERVER['HTTP_X_REAL_IP'] ) && filter_var( $_SERVER['HTTP_X_REAL_IP'], FILTER_VALIDATE_IP,
    FILTER_FLAG_NO_PRIV_RANGE ) ) {
    $_SERVER['REMOTE_ADDR'] = filter_var( $_SERVER['HTTP_X_REAL_IP'], FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE ) ;
   } else {
    if ( isset( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) {
     $_SERVER['REMOTE_ADDR'] = $_SERVER['HTTP_X_FORWARDED_FOR'] ;
    }
    if ( isset( $_SERVER['HTTP_X_REAL_IP'] ) ) {
     $_SERVER['REMOTE_ADDR'] = $_SERVER['HTTP_X_REAL_IP'] ;
    }
   }
   return $_SERVER['REMOTE_ADDR'] ;
 }
echo ip(); 

[m4ster_v4]

function IP(){
if(isset($_SERVER)){
if(isset($_SERVER["HTTP_X_FORWARDED_FOR"])){
$ip = $_SERVER["HTTP_X_FORWARDED_FOR"];
if(strpos($ip,",")){
$exp_ip = explode(",",$ip);
$ip = $exp_ip[0];
}
}else if(isset($_SERVER["HTTP_CLIENT_IP"])){
$ip = $_SERVER["HTTP_CLIENT_IP"];
}else{
$ip = $_SERVER["REMOTE_ADDR"];
}
}else{
if(getenv('HTTP_X_FORWARDED_FOR')){
$ip = getenv('HTTP_X_FORWARDED_FOR');
if(strpos($ip,",")){
$exp_ip=explode(",",$ip);
$ip = $exp_ip[0];
}
}else if(getenv('HTTP_CLIENT_IP')){
$ip = getenv('HTTP_CLIENT_IP');
}else {
$ip = getenv('REMOTE_ADDR');
}
}
return $ip;
}