多个参数传递给由路由控制器在laravel 5

Question

我在

路线：

Route::get('feed/{type?}/{first?}/{second?}/{third?}', ['as' => 'feed', 'uses' => 'PostController@feed']); 

控制器：

public function feed(Request $request, $type, $first, $second, $third) 
{ 
... 

但这农产品错误：

ErrorException in PostController.php line 209: 
Missing argument 3 for App\Http\Controllers\PostController::feed() 

我做得不好？我忘了什么？ 谢谢。

Answer 1

按照Laravel Docs

Make sure to give the route's corresponding variable a default value

所以它应该是这样的：

public function feed(Request $request = null, $type = null, $first = null, $second = null, $third = null) 
{ 
... 

您可以将其替换null您选择的默认值。

Answer 2

你应该申报的参数作为可选太像

public function feed(Request $request, $type = '', $first = '', $second = '', $third = '') 
{