let myUrl = NSURL(string: "myURL");
    let request = NSMutableURLRequest(URL: myUrl!);
    request.HTTPMethod = "POST";

    let params : [String : AnyObject] = ["username": username!, "password": password!];
    request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type");

    do{
        let jsonData = try NSJSONSerialization.dataWithJSONObject(params, options: NSJSONWritingOptions());
        request.HTTPBody = jsonData;
        let jsonString = NSString(data: jsonData, encoding: NSUTF8StringEncoding)! as String
        print(jsonString);
        print(request.HTTPBody);

    }catch {
        print(error)
    }

    let task = NSURLSession.sharedSession().dataTaskWithRequest(request, completionHandler: { (data: NSData?, response: NSURLResponse?, error: NSError?) -> Void in

        do{
            let json = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableLeaves) as? NSDictionary

            print(response)
            if let parseJSON = json {
                let resultValue = parseJSON["type"] as? Int
                print("result: (resultValue)")
            }
        }catch{
            print(error)
        }
    })

    task.resume()

require("Conn.php");
    require("MySQLDao.php");


    $fp = fopen("data.txt", "a+");


    $data = file_get_contents('php://input');
    $json = json_decode($data, false);
    $username = $_POST['username'];
    $password = $_POST['password'];


    fwrite($fp, $data);
    fwrite($fp, $json);
    fwrite($fp, $username);
    fwrite($fp, $password);
    fclose($fp);
    $returnValue = array();

    if(empty($username) || empty($password))
    {
            $returnValue["status"] = "error";
            $returnValue["message"] = "Missing required field";
            echo json_encode($returnValue);
            return;
    }


    $dao = new MySQLDao();
    $dao->openConnection();
    $userType = $dao->passwordAuthentification($username, $password);

    if($userType != null){
            $returnValue["type"] = (int)$userType;
            echo json_encode($returnValue);
    }else{
            $returnValue["type"] = -1;
            $returnValue["message"] = "user is not found";
            echo json_encode($returnValue);
    }

    $dao->closeConnection();