Laravel 选取已选选项

Question

我想在子类别编辑表单中显示所选类别选项。
我正在使用 pluck 函数从数据库中获取类别。

{{ Form::model($subcategories,['route'=> ['subcategories.edit',$subcategories->id],'method'=>'post']) }}

 <div class="form-group">
   {{ Form::label("","Sub Category ") }}
   {{ Form::select('category_id',$categories,null,['class'=>'form-control']) }}
 </div>


 <div class="form-group">
    {{ Form::label("","Sub Category ") }}
    {{ Form::text('sub_category_id',old('sub_category_id'),['class'=>'form-control']) }}
 </div>
 <div class="form-group">

    {{ Form::submit('UPDATE',['class'=>'form-control']) }}
 </div>

{{ Form::close() }}

如何操作？

Answer 1

传递 selected 值数组代替 select() 的第 3 个参数例如

{{ Form::select('category_id',$categories,$selected_categories,['class'=>'form-control']) }}

Laravel 选取已选选项

Laravel Pluck Selected option

laravel

pluck