<?php $userid = $_POST['userid']; $deviceid = $_POST["deviceid"]; include "db.php"; include_once './GCM.php'; $cklogin = new GCM(); $result = $cklogin->checkuserlogin($userid, $deviceid); if ($result == 'loggedin') { include "db.php"; $query1 = "SELECT * FROM usertable where userid='" . $userid . "';"; $result1 = mysqli_query($conn, $query1) or die(mysql_error()); if (mysqli_num_rows($result1) > 0) { $query = "UPDATE `usertable` set " . "isloggin='no', gcmid='no' " . "where userid=" . $userid; // echo $query; $result = mysqli_query($conn, $query); if ($result == 1) { $response["success"] = 1; $response["message"] = "Logout Succeessfully"; echo json_encode($response); } else { $response["success"] = 0; $response["message"] = "Please try again!"; echo json_encode($response); } } else { $response["success"] = 0; $response["message"] = "Please try again!"; echo json_encode($response); } } else {