Bagaimana cara menghubungkan mysql dengan swift?

Menghubungkan swift ke mysql dan php sangat mudah. Pertama, Anda memerlukan REST API. Anda dapat membuat rest api dengan menggunakan kerangka kerja apa pun yang tersedia. Anda juga dapat mengkodekan Layanan Web Anda menggunakan PHP saja. Jadi di sini saya akan menunjukkan penggunaan kerangka kerja php apa pun.

Jadi pertama buat file untuk menyimpan konstanta database Anda.

<?php
/**
 * Created by PhpStorm.
 * User: Belal
 * Date: 12/08/16
 * Time: 7:58 PM
 */

define('DB_USERNAME', 'root');
define('DB_PASSWORD', '');
define('DB_HOST', 'localhost');
define('DB_NAME', 'iphone');

Kemudian buat file php lain untuk membuat koneksi database.

<?php

class DbConnect
{
    private $conn;

    function __construct()
    {
    }

    /**
     * Establishing database connection
     * @return database connection handler
     */
    function connect()
    {
        require_once 'Config.php';

        // Connecting to mysql database
        $this->conn = new mysqli(DB_HOST, DB_USERNAME, DB_PASSWORD, DB_NAME);

        // Check for database connection error
        if (mysqli_connect_errno()) {
            echo "Failed to connect to MySQL: " . mysqli_connect_error();
        }

        // returing connection resource
        return $this->conn;
    }
}

Sekarang Anda memerlukan satu file lagi untuk menangani operasi database Anda.

<?php

class DbOperation
{
    private $conn;

    //Constructor
    function __construct()
    {
        require_once dirname(__FILE__) . '/Config.php';
        require_once dirname(__FILE__) . '/DbConnect.php';
        // opening db connection
        $db = new DbConnect();
        $this->conn = $db->connect();
    }

    //Function to create a new user
    public function createTeam($name, $memberCount)
    {
        $stmt = $this->conn->prepare("INSERT INTO team(name, member) values(?, ?)");
        $stmt->bind_param("si", $name, $memberCount);
        $result = $stmt->execute();
        $stmt->close();
        if ($result) {
            return true;
        } else {
            return false;
        }
    }

}

Terakhir Anda perlu membuat file php yang akan menangani permintaan http Anda.

<?php

//creating response array
$response = array();

if($_SERVER['REQUEST_METHOD']=='POST'){

    //getting values
    $teamName = $_POST['name'];
    $memberCount = $_POST['member'];

    //including the db operation file
    require_once '../includes/DbOperation.php';

    $db = new DbOperation();

    //inserting values 
    if($db->createTeam($teamName,$memberCount)){
        $response['error']=false;
        $response['message']='Team added successfully';
    }else{

        $response['error']=true;
        $response['message']='Could not add team';
    }

}else{
    $response['error']=true;
    $response['message']='You are not authorized';
}
echo json_encode($response);

Sekarang cukup buat tampilan di Aplikasi iOS Anda dan klik tombol kirim permintaan ke file php Anda. Kodenya adalah sebagai berikut.

//
//  ViewController.swift
//  SwiftPHPMySQL
//
//  Created by Belal Khan on 12/08/16.
//  Copyright © 2016 Belal Khan. All rights reserved.
//

import UIKit

class ViewController: UIViewController {

    //URL to our web service
    let URL_SAVE_TEAM = "http://192.168.1.103/MyWebService/api/createteam.php"


    //TextFields declarations
    @IBOutlet weak var textFieldName: UITextField!
    @IBOutlet weak var textFieldMember: UITextField!



    //Button action method
    @IBAction func buttonSave(sender: UIButton) {

        //created NSURL
        let requestURL = NSURL(string: URL_SAVE_TEAM)

        //creating NSMutableURLRequest
        let request = NSMutableURLRequest(URL: requestURL!)

        //setting the method to post
        request.HTTPMethod = "POST"

        //getting values from text fields
        let teamName=textFieldName.text
        let memberCount = textFieldMember.text

        //creating the post parameter by concatenating the keys and values from text field
        let postParameters = "name="+teamName!+"&member="+memberCount!;

        //adding the parameters to request body
        request.HTTPBody = postParameters.dataUsingEncoding(NSUTF8StringEncoding)


        //creating a task to send the post request
        let task = NSURLSession.sharedSession().dataTaskWithRequest(request){
            data, response, error in

            if error != nil{
                print("error is \(error)")
                return;
            }

            //parsing the response
            do {
                //converting resonse to NSDictionary
                let myJSON =  try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableContainers) as? NSDictionary

                //parsing the json
                if let parseJSON = myJSON {

                    //creating a string
                    var msg : String!

                    //getting the json response
                    msg = parseJSON["message"] as! String?

                    //printing the response
                    print(msg)

                }
            } catch {
                print(error)
            }

        }
        //executing the task
        task.resume()

    }


    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}

Satu hal lagi yang perlu Anda lakukan adalah menambahkan baris berikut di dalam file Info.plist Anda, ini karena secara default Anda tidak dapat mengirim permintaan ke url yang tidak diamankan jadi karena kami memiliki http, kami harus melakukan hal terakhir ini.

<!-- add from here -->
    <key>NSAppTransportSecurity</key>
    <dict>
        <key>NSAllowsArbitraryLoads</key>
        <true/>
        <key>NSExceptionDomains</key>
        <dict>
            <key>yourdomain.com</key>
            <dict>
                <key>NSIncludesSubdomains</key>
                <true/>
                <key>NSThirdPartyExceptionRequiresForwardSecrecy</key>
                <false/>
            </dict>
        </dict>
    </dict>
    <!-- end of the code -->

Sumber:Tutorial Database MySQL iOS