fast-route的使用

<?php

require 'vendor/autoload.php';

// 通过 FastRoute\simpleDispatcher() 方法定义路由，第一个参数必须是 FastRoute\RouteCollector实例
$dispatcher = FastRoute\simpleDispatcher(function (FastRoute\RouteCollector $r) {
    /**
     * 通过 addRoute() 添加路由
     * $method 必须是大写，可以写成数组形式
     * $routePattern /开头, 可以用正则修饰
     * $handler
     */
    $r->addRoute('GET', '/fast-route/demo1.php/{name:\w+}', 'say_handler');
    // 分组
    $r->addGroup('/admin', function (FastRoute\RouteCollector $r) {
        // {id} must be a number (\d+)
        $r->addRoute('GET', '/user/{id:\d+}', 'get_user_handler');
        // The /{title} suffix is optional
        $r->addRoute('GET', '/articles/{id:\d+}[/{title}]', 'get_article_handler');
        $r->addRoute('GET', '/users', 'get_all_users_handler');
    });
});

// 使用缓存
$dispatcher2 = FastRoute\cachedDispatcher(function(FastRoute\RouteCollector $r) {
    $r->addRoute('GET', '/user/{name}/{id:[0-9]+}', 'handler0');
    $r->addRoute('GET', '/user/{id:[0-9]+}', 'handler1');
    $r->addRoute('GET', '/user/{name}', 'handler2');
}, [
    'cacheFile' => __DIR__ . '/route.cache', /* required */
]);

// 获取请求和URI
$httpMethod = $_SERVER['REQUEST_METHOD'];
$uri = $_SERVER['REQUEST_URI'];

// 去除查询字符串(?foo=bar)和解码URI
if (false !== $pos = strpos($uri, '?')) {
    $uri = substr($uri, 0, $pos);
}
$uri = rawurldecode($uri);

$routeInfo = $dispatcher->dispatch($httpMethod, $uri);
switch ($routeInfo[0]) {
    case FastRoute\Dispatcher::NOT_FOUND:
        echo '... 404 Not Found';
        break;
    case FastRoute\Dispatcher::METHOD_NOT_ALLOWED:
        $allowedMethods = $routeInfo[1];
        echo '... 405 Method Not Allowed';
        break;
    case FastRoute\Dispatcher::FOUND:
        $handler = $routeInfo[1];
        $vars = $routeInfo[2];
        var_dump('... call', $handler, 'with', $vars);
        break;
}