function ip(){
     $ipaddress = '';
      if(isset($_SERVER['HTTP_CF_CONNECTING_IP'])) {
          $ipaddress =  $_SERVER['HTTP_CF_CONNECTING_IP'];
      } else if (isset($_SERVER['HTTP_X_REAL_IP'])) {
          $ipaddress = $_SERVER['HTTP_X_REAL_IP'];
      }
      else if (isset($_SERVER['HTTP_CLIENT_IP']))
          $ipaddress = $_SERVER['HTTP_CLIENT_IP'];
      else if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
          $ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
      else if(isset($_SERVER['HTTP_X_FORWARDED']))
          $ipaddress = $_SERVER['HTTP_X_FORWARDED'];
      else if(isset($_SERVER['HTTP_FORWARDED_FOR']))
          $ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
      else if(isset($_SERVER['HTTP_FORWARDED']))
          $ipaddress = $_SERVER['HTTP_FORWARDED'];
      else if(isset($_SERVER['REMOTE_ADDR']))
          $ipaddress = $_SERVER['REMOTE_ADDR'];
      else
          $ipaddress = 'UNKNOWN';
      return $ipaddress;
  }
echo ip();