如何用php为bootstrap accordion生成数据目标？

<div id="accordion">
  <?php foreach ($accordionData as $item): ?>
    <div class="card">
      <div class="card-header" id="heading<?php echo $item['id']; ?>">
        <h5 class="mb-0">
          <button class="btn btn-link" data-toggle="collapse" data-target="#collapse<?php echo $item['id']; ?>" aria-expanded="true" aria-controls="collapse<?php echo $item['id']; ?>">
            <?php echo $item['title']; ?>
          </button>
        </h5>
      </div>

      <div id="collapse<?php echo $item['id']; ?>" class="collapse" aria-labelledby="heading<?php echo $item['id']; ?>" data-parent="#accordion">
        <div class="card-body">
          <?php echo $item['content']; ?>
        </div>
      </div>
    </div>
  <?php endforeach; ?>
</div>