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‎app/Application.php‎

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<?php
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namespace App;
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use App\Http\Request;
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use App\Routing\Route;
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class Application
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{
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public function __construct()
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{
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$this->request = Request::url();
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$this->route = new Route($this->request->method, $this->request->path);
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}
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public function run()
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{
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$this->route->call();
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}
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}

‎app/Controllers/Controller.php‎

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<?php
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namespace App\Controllers;
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class Controller
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{
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//
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}

‎app/Controllers/UserController.php‎

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<?php
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namespace App\Controllers;
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use App\Http\Request;
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use App\Http\Response;
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use App\Models\Users;
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class UserController extends Controller
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{
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/**
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* Display a listing of the resource.
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*
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* @return \Http\Request
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*/
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public function index(Request $request)
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{
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$users = Users::all();
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Response::json($users);
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}
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/**
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* Store a newly created resource in storage.
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*
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* @param \Http\Request $request
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*/
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public function store(Request $request)
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{
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Users::create($request->json());
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}
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/**
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* Display the specified resource.
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*
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* @param \Http\Request $request
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*/
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public function show(Request $request)
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{
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$user = Users::find($request->params->id);
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Response::json($user);
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}
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/**
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* Update the specified resource in storage.
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*
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* @param \Http\Request $request
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*/
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public function update(Request $request)
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{
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Users::update($request->input(), $request->params->id);
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}
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/**
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* Remove the specified resource from storage.
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*
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* @param \Http\Request $request
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*/
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public function destroy(Request $request)
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{
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Users::delete($request->params->id);
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}
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}

‎app/Http/Request.php‎

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<?php
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namespace App\Http;
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class Request
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{
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public $params;
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public $query;
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public $contentType;
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public $method;
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public $path;
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public function __construct($args)
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{
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$this->params = $args->params;
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$this->query = $args->query;
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$this->contentType = $_SERVER["CONTENT_TYPE"] ?? '';
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$this->method = $_SERVER["REQUEST_METHOD"];
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$this->path = $_SERVER["REQUEST_URI"];
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}
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public static function url()
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{
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return (object)["method" => $_SERVER["REQUEST_METHOD"], "path" => $_SERVER["REQUEST_URI"]];
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}
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public function json()
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{
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if ($this->method !== "POST" || $this->contentType !== "application/json") {
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return [];
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}
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return json_decode(trim(file_get_contents("php://input")));
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}
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public function input()
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{
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if ($this->method === "PUT") {
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parse_str(file_get_contents("php://input"), $body);
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return (object)$body;
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}
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if ($this->method !== "POST") {
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return [];
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}
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$body = [];
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foreach ($_POST as $key => $value) {
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$body[$key] = filter_input(INPUT_POST, $key, FILTER_SANITIZE_SPECIAL_CHARS);
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}
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return (object)$body;
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}
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}

‎app/Http/Response.php‎

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<?php
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namespace App\Http;
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class Response
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{
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public static function json($body)
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{
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header('Content-Type: application/json');
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exit(json_encode($body));
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}
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public static function make($code, $type, $message)
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{
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return [
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"code" => $code,
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"type" => $type,
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"message" => $message
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];
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}
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public static function _404()
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{
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http_response_code(404);
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$resposne = [
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"code" => 404,
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"type" => "404 Not Found",
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"message" => "The requested resource could not be found but may be available again in the future."
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];
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return self::json($resposne);
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}
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}

‎app/Models/Database.php‎

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<?php
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namespace App\Models;
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use PDO;
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class Database
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{
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private static $dbh = null;
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public static function connect()
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{
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if (is_null(self::$dbh)) {
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self::$dbh = new PDO($_ENV["DSN"], $_ENV["USERNAME"], $_ENV["PASSWORD"]);
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self::$dbh->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
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}
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return self::$dbh;
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}
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}

‎app/Models/Model.php‎

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<?php
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namespace App\Models;
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class Model
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{
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public function __construct()
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{
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//
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}
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public static function all()
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{
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$table = substr(strrchr(get_called_class(), "\\"), 1);;
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$dbh = Database::connect();
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$sth = $dbh->prepare("SELECT * FROM $table;");
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$sth->execute();
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return $sth->fetchAll();
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}
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public static function create(object $qq)
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{
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$dbh = Database::connect();
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$table = substr(strrchr(get_called_class(), "\\"), 1);
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$columns = implode(',', array_keys((array)$qq));
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$values = implode(',', array_map(function ($val) {
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return is_string($val) ? "'$val'" : $val;
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}, array_values((array)$qq)));
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$query = "INSERT INTO $table ($columns) VALUES ($values);";
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print_r($query);
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exit;
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$sth = $dbh->prepare($query);
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$sth->execute();
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}
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public static function delete(int $id)
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{
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$table = substr(strrchr(get_called_class(), "\\"), 1);
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$dbh = Database::connect();
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$dbh->prepare("DELETE FROM $table where id = ?;")->execute([$id]);
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}
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public static function find(int $id)
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{
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$table = substr(strrchr(get_called_class(), "\\"), 1);
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$dbh = Database::connect();
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$sth = $dbh->prepare("SELECT * FROM $table WHERE id = ?;");
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$sth->execute([$id]);
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return $sth->fetchAll();
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}
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public static function update(object $qq, int $id)
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{
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$table = substr(strrchr(get_called_class(), "\\"), 1);
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$dbh = Database::connect();
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$value = (array) ($qq);
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$values = implode(',', array_map(
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function ($v, $k) {
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$v = is_numeric($v) ? (int)$v : "'$v'";
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return "$k=$v";
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},
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$value,
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array_keys($value)
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));
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$query = "UPDATE $table SET $values WHERE id = $id;";
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$sth = $dbh->prepare($query);
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$sth->execute();
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}
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}

‎app/Models/Users.php‎

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<?php
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namespace App\Models;
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class Users extends Model
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{
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public function __construct()
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{
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//
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}
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}

‎app/Routing/Route.php‎

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<?php
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namespace App\Routing;
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use App\Http\Request;
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use App\Http\Response;
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class Route
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{
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private static $routes = [];
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private $matches_route = null;
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private $wildcard = '/\{(.*?)\}/';
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private $parameters = [];
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private $query = [];
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public function __construct($method, $path)
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{
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$this->method = $method;
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$this->path = $path;
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}
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public static function get($uri, $fn)
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{
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self::make("GET", $uri, $fn);
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}
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public static function post($uri, $fn)
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{
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self::make("POST", $uri, $fn);
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}
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public static function put($uri, $fn)
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{
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self::make("PUT", $uri, $fn);
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}
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public static function delete($uri, $fn)
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{
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self::make("DELETE", $uri, $fn);
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}
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public function call()
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{
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$routes = $this->filter_routes_by_method(self::$routes, $this->method) ?: Response::_404();
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foreach ($routes as $value) {
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if ($this->matche($value["pattern"], $this->path) === true) {
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$this->matches_route = (object) $value;
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break 1;
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}
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}
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$this->matches_route ?: Response::_404();
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$callback = $this->matches_route->callback;
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$arg = (object)["params" => (object) $this->parameters, "query" => (object) $this->query];
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return call_user_func($callback, (new Request($arg)));
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}
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public static function make($method, $pattern, $callback)
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{
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$action = ["method" => $method, "pattern" => $pattern, "callback" => $callback];
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array_push(self::$routes, $action);
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}
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protected function filter_routes_by_method(array $routes, string $method)
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{
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$_ = [];
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foreach ($routes as $value) {
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if ($value["method"] === $method) {
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array_push($_, $value);
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}
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}
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return $_;
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}
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public function matche($pattern, $path)
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{
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$url = parse_url($path);
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$path = $url["path"];
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parse_str($url["query"] ?? '', $this->query);
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$parameters = preg_replace_callback($this->wildcard, function ($m) {
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return '(?<' . preg_replace($this->wildcard, '$1', $m[0]) . '>[a-zA-Z0-9_\-\@\.]+)';
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}, $pattern);
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$parameters = ('@^' . $parameters . '$@');
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if (preg_match($parameters, $path, $params)) {
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foreach ($params as $key => $value) {
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if (is_string($key)) {
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$this->parameters[$key] = $value;
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}
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}
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return true;
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}
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return false;
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}
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}

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