POST 数据从 iOS 到 php 服务器始终为 NULL - iOS 10、Swift 3、php

Question

i am implementing a FCM app server and wanted to store the device registration token id into my own database (Server written in PHP).

I realise the data in device id token is always null , Can someone point the right way to store the token accordingly into database?

Really appreciated perhaps someone could guide me on this issue, thanks!

Kindly refer the code/screenshots below:-

AppDelegate.swift

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    var token = ""

    for i in 0..<deviceToken.count {
        token += String(format: "%02.2hhx", arguments: [deviceToken[i]])
    }

    print("Registration succeeded!")
    print("Token: ", token)
    Callquery(token)

}

AppDelegate.swift (Callquery method which send a POST request to server side script)

func Callquery(_ token: String)
{

    // append parameter to oneDictionary
    let tokenString = ["token": token] as [String: Any]

    // create the request
    var request = URLRequest(url: URL(string:"https://YourURL.com/admin/registerToken.php")!)

    // set the method as POST
    request.httpMethod = "POST"

    // append the paramter to body
    request.httpBody = try! JSONSerialization.data(withJSONObject: tokenString, options: [])

    // create the session
    URLSession.shared.dataTask(with:request, completionHandler: {(data, response, error) in
        if error != nil {
            print("There was error during datatask session")
            print(error)
        } else {
            do {
                guard let json = try? JSONSerialization.jsonObject(with: data!, options: .allowFragments) as? [String: Any] else { return }

                guard let errors = json?["errors"] as? [[String: Any]] else { return }
                if errors.count > 0 {
                    // show error
                    print("There is an error during parse JSON datatask")
                    return
                } else {
                    // show confirmation
                    print("datatask with JSON format performed successfully")
                }
            }
        }
        print(request)
    }).resume()
}

Service Side Script(registerToken.php):

<?php
include 'config.php';

$token = $_POST['token'];

$sql = "INSERT INTO users (email,device_id) VALUES ('email','$token')";

mysqli_query($conn, $sql);



mysqli_close($conn);
?>

Running App with real devices log as below:-

Database users table (device id always has nothing):-

users table structure:-

tokenString :-

Answer 1

I had solved this issue by using GET method instead of POST method as below:-

Appdelegate.swift :

var request = URLRequest(url: URL(string:"https://YourURL.com/admin/registerToken.php?token=\(token)")!)

Server side script :

$token = $_GET['token'];