function ShowDriverRecord($userName, $password)  {
global $connect;
  $query = "SELECT drv_id,drv_firstname,drv_surname FROM wp_booking_drivers WHERE drv_username = '$userName' AND drv_password = '$password'";
  $result = mysqli_query($connect,$query);
  $no_of_rows = mysqli_num_rows($result);

  $status = false;
  $driverId = null;
  $driverName = null;

  if ($no_of_rows > 0) {
      $driverRecord = mysqli_fetch_assoc($result);
      $status = true;
      $driverId = $driverRecord['drv_id'];
      $driverName = $driverRecord['drv_firstname']." ".$driverRecord['drv_surname'];
  }

  header('Content-Type: application/json');
  echo json_encode(array("Status"=>$status,"DriverId"=>$driverId,"DriverName"=>$driverName));

Map<String,String> params = new HashMap<>();
    params.put("userName",username);
    params.put("password",password);
    CustomJsonRequest jsonRequest = new CustomJsonRequest(Request.Method.POST, WebUrls.DRIVER_LOGIN_URL, params, new Response.Listener<JSONObject>() {
        @Override
        public void onResponse(JSONObject response) {
            try {
                boolean status = response.getBoolean("Status");
                if (status){
                    callbacks.onSuccess(response);
                }else {
                    callbacks.onFailure("Wrong username or password.");
                }
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            error.printStackTrace();
        }
    });
    requestQueue.add(jsonRequest);