- strtolower: documentation ( source)
<?php
class Request {
private $method;
private $path;
function __construct($method, $path) {
$this->method = $method;
$this->path = $path;
}
function getMethod() {
return $this->method;
}
function getPath() {
return $this->path;
}
}
class Router {
private $routes = [
'get' => [],
'post' => []
];
function get($pattern, callable $handler) {
$this->routes['get'][$pattern] = $handler;
return $this;
}
function post($pattern, callable $handler) {
$this->routes['post'][$pattern] = $handler;
return $this;
}
function match(Request $request) {
$method = strtolower($request->getMethod());
if (!isset($this->routes[$method])) {
return false;
}
$path = $request->getPath();
foreach ($this->routes[$method] as $pattern => $handler) {
if ($pattern === $path) {
return $handler;
}
}
return false;
}
}
class Dispatcher {
private $router;
function __construct(Router $router) {
$this->router = $router;
}
function handle(Request $request) {
$handler = $this->router->match($request);
if (!$handler) {
echo "Could not find your resource!\n";
return;
}
$handler();
}
}
$router = new Router();
$router->get('foo', function() { echo "GET foo\n"; });
$router->post('bar', function() { echo "POST bar\n"; });
$dispatcher = new Dispatcher($router);
$dispatcher->handle(new Request('GET', 'foo'));
$dispatcher->handle(new Request('POST', 'bar'));
$dispatcher->handle(new Request('GET', 'qux'));