for php循环中的引导折叠

我想在PHP为循环引导手风琴。但它不会崩溃。我不确定我做错了什么

这是我的密码

<?php
$row_count = 1;
for ($x = 0; $x < 5; $x++) {

  echo $row_count ;
  ?>


  <div class="panel-group" id="accordion">
    <div class="panel panel-default">
      <div class="panel-heading">
        <h4 class="panel-title">
          <a data-toggle="collapse" data-parent="#accordion" href="#collapse1<?php echo $row_count; ?>">Collapsible Group 1</a>
        </h4>
      </div>
      <div id="collapse1<?php echo $row_count ?>" class="panel-collapse collapse ">
        <div class="panel-body">Lorem.</div>
      </div>
    </div>
  </div> 


  <?php
$row_count  ++;
}

?>

按如下方式重写代码：-

<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
<?php
$row_count = 1;
for ($x = 0; $x < 5; $x++) {  ?>

    <div class="panel panel-default" >
      <div class="panel-heading" role="tab" id="heading<?php echo $row_count ?>">
        <h4 class="panel-title">
          <a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapse<?php echo $row_count; ?>" aria-expanded="false"">Collapsible Group <?php echo $row_count?></a>
        </h4>
      </div>
      <div id="collapse<?php echo $row_count; ?>" class="panel-collapse collapse " role="tabpanel" aria-labelledby="heading<?php echo $row_count; ?>">
        <div class="panel-body">Lorem.</div>
      </div>
    </div>

<?php $row_count++; } ?>
</div> 


试试这个

<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
<?php  
$row_count = 1;
for ($x = 0; $x < 5; $x++) {
  ?>
  <div class="panel panel-default">
    <div class="panel-heading" role="tab" id="headingOne<?=$row_count?>">
      <h4 class="panel-title">
        <a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseOne<?=$row_count?>" aria-expanded="false" aria-controls="collapseOne<?=$row_count?>">
          Collapsible Group Item #1
        </a>
      </h4>
    </div>
    <div id="collapseOne<?=$row_count?>" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingOne<?=$row_count?>">
      <div class="panel-body">
       Lorem
      </div>
    </div>
  </div>
  <?php
$row_count  ++;
}
?>
</div>


面板组不应该
在循环的
之外吗？只要在那里一次就可以了？好的。我不确定它是需要在循环内部还是外部。我想要的是每次循环时另一个手风琴折叠。这是可行的，但是在页面加载时，所有的部分都已经折叠了。我希望默认情况下所有这些都隐藏。只需更新答案。只需将“面板塌陷”替换为“面板塌陷”。这不起作用。每次单击“新建折叠”时，上一个不会关闭。请立即检查。只需将父div放在循环之外。