PHP 路由解析器结束 URL

Question

我为自己的 php-mvc-framework 编写了一个小的 php url 解析器，我在下面的代码中几乎不需要帮助:

<?php
class Route{

private $routes = [];

public function __construct(){}

public function addRoute($method, $url, $callback){
    $this->routes[] = array('method' => $method, 
                          'url' => $url, 
                          'callback' => $callback);
}

public function doRouting(){
    $reqUrl = $_SERVER['REQUEST_URI'];
    $reqMet = $_SERVER['REQUEST_METHOD'];
    foreach($this->routes as  $route) {

        // convert urls like '/users/:uid/posts/:pid' to regular expression      
        $pattern = "@^" . preg_replace('/\\\:[a-zA-Z0-9\_\-]+/', '([a-zA-Z0-9\-\_]+)', preg_quote($route['url'])) . "$@D";
        $matches = array();

        if($reqMet == $route['method'] && preg_match($pattern, $reqUrl, $matches)) {

            // remove the first match
            array_shift($matches);
            // call the callback with the matched positions as params
            return call_user_func_array($route['callback'], $matches);
        }
    }
}

$route = new Route();

$route->addRoute('GET', '/', function(){
     echo 'root';
});

 $route->addRoute('GET', '/users/', function(){
     echo 'users';
 });
 $route->addRoute('GET', '/users/:uid/posts/:pid/', function($uid, $pid){
     echo $uid.'<br/>'.$pid;
 });

 $route->addRoute('GET', '/users/:uid/posts/:pid/edit', function($uid, $pid){
     echo 'users posts edit';
 });


 $route->doRouting();

我想在 URL 的末尾允许一个可选的 /。例如，在当前的路由定义中，当 REQUEST_URI 是 /users/123/posts/456 我想要相同的结果(函数调用)当 REQUEST_URI是 /users/123/posts/456/。

此外，/users/123/posts/456/edit 调用新函数。

Answer 1

如果需要，从您的 route 去除尾部斜线:

$route['url'] = rtrim($route['url'], '/');

然后相应地终止你的路线模式:

$pattern = preg_replace('/\\\:[a-zA-Z0-9\_\-]+/', '([a-zA-Z0-9\-\_]+)', preg_quote($route['url'], '@'));
$pattern = "@^$pattern/?$@D";