php路由类

<?php
class Router {
    private $routes = [];

    public function addRoute($route, $controller, $method) {
        $this->routes[$route] = ['controller' => $controller, 'method' => $method];
    }

    public function dispatch($url) {
        if (array_key_exists($url, $this->routes)) {
            $controller = $this->routes[$url]['controller'];
            $method = $this->routes[$url]['method'];
            $controllerInstance = new $controller();
            call_user_func_array([$controllerInstance, $method], []);
        } else {
            echo "404 Not Found";
        }
    }
}

// 使用示例
$router = new Router();
$router->addRoute('/home', 'HomeController', 'index');
$router->addRoute('/user/:id', 'UserController', 'show');

$requestUrl = $_SERVER['REQUEST_URI'];
$router->dispatch($requestUrl);