我需要为每3个附件创建一行。类似的东西
@foreach($email->attachment as $attach)
<div class="row">
<div class="col-lg-4"></div>
<div class="col-lg-4"></div>
<div class="col-lg-4"></div>
</div>
@endforeach
<div class="row">
<div class="col-lg-4">1st attachment</div>
<div class="col-lg-4">2nd attachment</div>
<div class="col-lg-4">3rd attachment</div>
</div>
<div class="row">
<div class="col-lg-4">4th attachment</div>
<div class="col-lg-4">5th attachment</div>
<div class="col-lg-4">6th attachment</div>
</div>
等等！我已经搜索了这个问题，但刚刚找到了这个链接，但从我的角度来看，它实际上是不同的。感谢
使用array_chunk-它是为每个目的而设计的-这样你就可以将数组切成子大小，并在每个组中循环
@foreach (array_chunk($email->attachment->toArray(), 3, true) as $array)
<div class="row">
@foreach($array as $attachment)
<div class="col-lg-4">{{ $attachment['id'] }}</div>
@endforeach
</div>
@endforeach
使用@Lukasgeiter的评论-如果它是Laravel Collection ，你也可以这样做
@foreach ($email->attachment->chunk(3) as $array)
<div class="row">
@foreach($array as $attachment)
<div class="col-lg-4">{{ $attachment->id }}</div>
@endforeach
</div>
@endforeach
试试这个，它比生成2个数组更快：
<div class="row">
@foreach( $email->attachment as $index => $attach)
<div class="col-lg-4">{{$attach}}</div>
@if( $index+1 === 0)
</div><div class="row">
@endif
@endforeach
</div>