【保存版】Laravel 申し込みフォーム 複数、択一のチェックボックス攻略

<tr>
    <th>野菜<span>必須</span></th>
    <td>
        <div class="inptBox">
            <div>
                <p class="supplement">※複数回答可</p>
                <div id="vegetables">
                    <label>
                        <input type="checkbox" name="vegetables[]" value="にんじん" {{ is_array(old("vegetables")) && in_array("にんじん", old("vegetables"), true)? ' checked' : '' }}>にんじん
                    </label>
                    <label>
                        <input type="checkbox" name="vegetables[]" value="たまねぎ" {{ is_array(old("vegetables")) && in_array("たまねぎ", old("vegetables"), true)? ' checked' : '' }}>たまねぎ
                    </label>
                    <label>
                        <input type="checkbox" name="vegetables[]" value="ピーマン" {{ is_array(old("vegetables")) && in_array("ピーマン", old("vegetables"), true)? ' checked' : '' }}>ピーマン
                    </label>
                    <label>
                        <input type="checkbox" name="vegetables[]" value="キャベツ" {{ is_array(old("vegetables")) && in_array("キャベツ", old("vegetables"), true)? ' checked' : '' }}>キャベツ
                    </label>
                    <label>
                        <input type="checkbox" name="vegetables[]" value="白菜" {{ is_array(old("vegetables")) && in_array("白菜", old("vegetables"), true)? ' checked' : '' }}>白菜
                    </label>
                </div>
                {{-- バリデーション処理 --}}
                @if(!is_array(old("vegetables")))
                @error('vegetables[]')
                <p class="errMessege">{{$message}}</p>
                @enderror
                @endif
            </div>
        </div>
    </td>
</tr>

<tr>
    <th>野菜</th>
    <td>
        <div class="inptBox">{{implode('、', $contents['vegetables'])}}</div>
        <input name="vegetables[]" type="hidden" value="{{implode('、', $contents['vegetables'])}}"></div>
    </td>
</t

<tr>
    <th>配達状況</th>
    <td>
        <label>
            <input type='hidden' value='' name='delivery_notice'>
            <input type="checkbox" name="delivery_notice" value="受け取る" {{ old('delivery_notice')=='受け取る' ? 'checked' : '' }}>受け取る
        </label>
    </td>
</tr>

<tr>
    <th>配達状況</th>
    <td>
        <div class="inptBox">{{$contents['delivery_notice']}}</div>
        <input name="delivery_notice" type="hidden" value="{{$contents['delivery_notice']}}"></div>
    </td>
</tr>

<tr>
    <th>配達間隔</th>
    <td>
        <div id="delivery_interval" class="deliveryInterval">
            <p class="supplement">※複数回答可</p>
            <label>
                <input type='hidden' value='' name='delivery_interval[]'>
            </label>
            <label>
                <input type="checkbox" name="delivery_interval[]" value="1ヶ月" {{ is_array(old("delivery_interval")) && in_array("1ヶ月", old("delivery_interval"), true)? ' checked' : '' }}>1ヶ月
            </label>
            <label>
                <input type="checkbox" name="delivery_interval[]" value="3ヶ月" {{ is_array(old("delivery_interval")) && in_array("3ヶ月", old("delivery_interval"), true)? ' checked' : '' }}>3ヶ月
            </label>
        </div>
    </td>
</tr>

<tr>
    <th>配達間隔</th>
    <td>
        <div class="inptBox">{{implode('、', array_filter($contents['delivery_interval']))}}</div>
        <input name="delivery_interval[]" type="hidden" value="{{implode('、', array_filter($contents['delivery_interval']))}}"></div>
    </div>
    </td>
</tr>