从路由到过滤器的 Laravel 传递参数
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Laravel Pass Parameter from Route to Filter
提问by 735Tesla
I am using the laravel framework. If I have the following route:
我正在使用 Laravel 框架。如果我有以下路线：
Route::get('/test/{param}', array('before'=>'test_filter', 'SomeController@anyAction'));
And this filter:
这个过滤器：
Route::filter('test_filter', function() {
$param = [Get the parameter from the url];
return "The value is $param";
});
How can I pass parameters to the filter so that when visiting /test/foobar I would get a page saying: "The value is foobar"?
如何将参数传递给过滤器，以便在访问 /test/foobar 时我会看到一个页面：“值是 foobar”？
回答by Damien Pirsy
Filters can be passed parameters, like the Route object or the Request:
过滤器可以传递参数，比如路由对象或请求：
Specifying Filter Parameters
指定过滤器参数
Route::filter('age', function($route, $request, $value)
{
//
});
Above example is taken from the docs: http://laravel.com/docs/routing#route-filters
上面的例子取自文档：http: //laravel.com/docs/routing#route-filters
Once you're inside the closure, you take the parameter from the $route:
一旦你进入闭包，你就可以从以下参数中获取参数$route：
Route::filter('test_filter', function($route) {
$param = $route->getParameter('param'); // use the key you defined
return "The value is $param";
});
或者，我相信您可以只获取您需要的段（未测试但应该可以工作）：
Route::filter('test_filter', function() {
$param = Request::segment(1);
return "The value is $param";
});
