<?php

   $mysqli = new mysqli('localhost', 'user', 'haslo', 'nazwabazy');

   if ($mysqli->connect_errno) {

 $mysqli->connect_errno . ") " . $mysqli->connect_error;

      exit();
   }

   if (!($stmt = $mysqli->prepare("INSERT INTO Track (Latitude, Longitude, ID) VALUES (?,?,?)"))) {

 $mysqli->errno . ") " . $mysqli->error;
   }

   $Latitude   = $_GET['lt'];
   $Longitude  = $_GET['ln'];
   $ID    = $_GET['d'];

   if (!$stmt->bind_param("ddss", $Latitude, $Longitude, $ID)) {
 $stmt->errno . ") " . $stmt->error;
   }

   if (!$stmt->execute()) {
 $stmt->errno . ") " . $stmt->error;
   }

   //-- Closing connection / cleanup
   $stmt->close();
   mysqli_close($mysqli);
?>