Laravel 5.1分类排序

{!! Form::open( array('url' => 'admin/category/sort/', 'method' => 'put') ) !!}@foreach($categories as $category){{--此处省略一些字段--}}<td><input class="sort" type="text" name="sort[]" value="{{$user_category ->sort}}"></td><input type="hidden" name="id[]" value="{{$user_category->id}}">@endforeach<div class="btn-group pull-left btn-sort">    <button class="btn btn-block btn-primary" type="submit">排序</button></div>{!!Form::close()!!}

public function sort(Request $request)    {        $sorts = Input::get('sort');        $ids = Input::get('id');        foreach($sorts as $index => $sort){            $id = $ids[$index];            $st = Category::find($id);            $st->update([                'sort' => $sort            ]);        }        return redirect('admin/category')->with('message', '排序成功！');    }

Route::put('category/sort','CategoryController@sort');