如何使用 Laravel 中的舊輸入定義所選選項

Question

Select 選項中的舊值

`

<select class="form-select inp" name="die_categories_id" required>
                           <!-- <option value="">--------- select -------</option> -->
                            @foreach($DieManagementCategories as $DieManagementCategories)
                            <option value="{{ $DieManagementCategories->id }}">{{ $DieManagementCategories->die_number }}</option>
                            @endforeach
                        </select>

`

Answer 1

像這樣更改您的foreach循環：

@foreach($DieManagementCategories as $DieManagementCategory)

和：

<option {{ old('die_categories_id') == $DieManagementCategory->id ? "selected" : "" }} value="{{ $DieManagementCategory->id }}">

{{ $DieManagementCategory->die_number }}

</option>