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Laravelで多次元配列のバリデーション

Last updated at Posted at 2018-03-16

書き方

inputタグのname属性がcomment[数字][]の場合です。

$validator = Validator::make($request->all(), [
    'comment' => 'required|array',
    'comment.*' => 'required|array',
    'comment.*.*' => 'nullable|string|max:255',
]);

if ($validator->fails())
{
    return redirect()->back()->withErrors($validator->errors())->withInput();
}

画面例

foreachで展開できなかったので仕方なくforで展開します。

@if (old('comment'))
    @for ($index = 0; $index < count(old('comment')); $index++)
        @for ($index2 = 0; $index2 < count(old('comment.'.$index)); $index2++)
            @if ($errors->has('comment.'.$index.'.'.$index2))
                <div style="color:red;">{{ $errors->first('comment.'.$index.'.'.$index2) }}</div>
            @endif
        <input type="text" name="comment[{{ $index }}][]" value="{{ old('comment.'.$index.'.'.$index2) }}" maxlength="255">
        @endfor
    @endfor
@endif
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