多重选择在使用bootstrap class =“ custom-select”多重选择时不起作用

Question

我正在尝试让用户选择多个选项：

<select class="custom-select" form-control" multiple>
    @foreach($permission_maps as $permission_map)
        <option value="">{{$permission_map}}</option>
    @endforeach
</select>

只能选择一个选项

Answer 1

将选择标签更改为此：

<select class="custom-select form-control" multiple>

Answer 2

选择名称属性应具有表列的名称：

<select **name ="permissions[]"**  class="custom-select  form-control" multiple>

这里列名是权限

Answer 3

<select name="inputName[]" class="custom-select" form-control" multiple>
@foreach($permission_maps as $permission_map)
    <option value="">{{$permission_map}}</option>
@endforeach
</select>