laravel Lumen：如何从中间件获取 url 参数
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Lumen: how can I get url parameters from middleware
提问by Andrea
This is my routes.php:
这是我的routes.php：
$app->get('/users/{id}/', ['middleware' => 'example', function () {
return "users";
}]);
This is the handlefunction in the middleware:
这是handle中间件中的功能：
public function handle($request, Closure $next)
{
// I would like to get the value of the url parameter {id} here
return $next($request);
}
Is there a way I can get the parameter idfrom my middleware?
有没有办法id从我的中间件中获取参数？
* Edit *
* 编辑 *
I'm using Lumen 5.1.0.
我正在使用Lumen 5.1.0。
回答by Phi Nguyen
There are some conventional ways in Laravel doesn't work on Lumen. And get parameter form URI in middleware is one of them. In Laravel, I just need to call $request->id, it will work like magic. But here in order to get parameter in Lumen, I need to do something like this:
Laravel 中有一些常规方法不适用于 Lumen。在中间件中获取参数形式的 URI 就是其中之一。在 Laravel 中，我只需要调用$request->id，它就会像魔术一样工作。但是在这里为了在 Lumen 中获取参数，我需要做这样的事情：
$request->route()[2]['id']
回答by Jeremy Harris
If the $requestvalue passed in is an instance of Illuminate\Http\Request, which I think it might be, that class has a method called input(), which lets you do exactly that:
如果$request传入的值是 的一个实例（Illuminate\Http\Request我认为可能是），则该类有一个名为 的方法input()，它可以让您完全做到这一点：
You should try this:
你应该试试这个：
$id = $request->input('id');
回答by Allen Wayne
i think the latest lumen 5.6 official tutorial about middleware is no longer applicable, and out of date.
我觉得最新的lumen 5.6官方中间件教程已经不适用了，已经过时了。
