foreach bootstrap手风琴

Question

我正在努力使这件事与this one相同。我已经打印过了。但崩溃的开支并不奏效。

<div class="bs-example">
<div class="panel-group" id="accordion">
@foreach($faqs as $faq)
    <div class="panel panel-default">
        <div class="panel-heading">
            <h4 class="panel-title">
                <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">{{ $faq->title }}</a>
            </h4>
        </div>
        <div id="collapseOne" class="panel-collapse collapse in">
            <div class="panel-body">
                <p>{{ $faq->description }}</p>
            </div>
        </div>
    </div>
@endforeach
</div>