php 如何从 Laravel 5 中的请求中检索 url 参数？
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How to retrieve a url parameter from request in Laravel 5?
提问by Alexander Lomia
I want to perform certain operations with a model in a middleware. Here is an example of what I want to achieve:
我想用中间件中的模型执行某些操作。这是我想要实现的一个例子：
public function handle($request, Closure $next)
{
$itemId = $request->param('item'); // <-- invalid code, serves for illustration purposes only
$item = Item::find($itemId);
if($item->isBad()) return redirect(route('dont_worry'));
return $next($request);
}
My question is, how can I retrieve the desired parameter from the $request?
我的问题是，如何从$request?
回答by Justin Origin Broadband
If the parameter is part of a URL and this code is being used in Middleware, you can access the parameter by it's name from the route given:
如果参数是 URL 的一部分并且此代码正在中间件中使用，则您可以通过给定路由的名称访问参数：
public function handle($request, Closure $next)
{
$itemId = $request->route()->getParameter('item');
$item = Item::find($itemId);
if($item->isBad()) return redirect(route('dont_worry'));
return $next($request);
}
This is based on having a route like: '/getItem/{item}'
这是基于具有如下路线： '/getItem/{item}'
回答by Ilya Yaremchuk
public function handle(Request $request, Closure $next)
{
$itemId = $request->item;
//..............
}
