foreach limit by
@foreach ($posts->slice(0, 5) as $post)
<h1>{{ $post['title'] }}</h1>
@endforeach
@foreach (array_chunk($courses->all(), 4) as $courseRow)
<div class="row">
@foreach ($courseRow as $course)
<div class="col-md-3">...</div>
@endforeach
</div>
@endforeach