如何根据其父类别显示或索引空间？

如何解决如何根据其父类别显示或索引空间？

我已经应用了具有无限级别子类别的递归关系。我也相应地显示了它。但是问题是我想在下拉列表中索引类别，子类别，sub_subcategory。到目前为止，它没有索引，并且下拉列表中的每个类别看起来都像父类别。

 <div class="col-sm-6">
                <select name="parent_id" class="form-control">
                <option value="">{{translate('Please Select')}}</option>
                    @foreach($types as $type)
                        @if($type->parent_id == null || $type->parent_id == 0)
                            <option value="{{$type->id}}">{{$type->title}}</option>
                        @endif
                            @foreach($type->children as $children)
                                @include('system.business-type.createRecursive',['children'=>$children])
                            @endforeach
                    @endforeach
                </select>
            </div>

递归刀片

<option value="{{$children->id}}">{{$children->title}}</option>
@if(count($children->childs) > 0)
    @foreach($children->childs as $t)
         @include('system.business-type.createRecursive',['children'=>$t])
    @endforeach
@endif

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