code: public function getIP() {
          $ip = "UNKNOWN";
  
          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("REMOTE_ADDR")) {
              $ip = getenv("REMOTE_ADDR");
          }
  
          return $ip;
      }
docs: Obtiene la IP del huesped.
  
  @return string