...
foreach($XMl->Continent as $continent) {
   echo "<div class='accordion-group'><div class='accordion-header'><a class='accordion-toggle' data-toggle='collapse'>".$continent['Name']."</a><span>".$continent['status']."</span></div>";
    foreach($continent->Country as $country) {
       echo "<div class='accordion-body collapse in'><div class='accordion-inner'><div class='accordion-group'><div class='accordion-header'><a class='accordion-toggle' data-toggle='collapse'>".$country['Name']."</a><span>".$country['Status']."</span></div>";
       foreach($country->CITy as $city) {
         echo "<div class='accordion-body collapse in'><div class='accordion-inner'>".$city['Name']."<span>".$city['Status']."</span></div></div>";
       }
       echo "</div></div></div>";
    }
    echo "</div>";
}
echo "</div>";
...

基本上……大陆都应该在默认状态下折叠.但是一旦你点击并展开一个大陆,它就会列出国家.这些国家也应扩大到展示城市,并停在那里.

我之前遇到了一个不同的方法,但它是非常脆弱的代码,并且在很大程度上依赖于标记,如果我的内容是动态生成的,并且内容可以从1变为多,我认为这不是一个好的途径.我真的只需要折叠功能才能工作,如果这意味着创建一个分配特定ID的脚本,那么这也有效 – 我只是好奇最好的方法是什么.