我想检查数组中的哪个变量？

Question

<?php 
  $tabs = array($auth_name, $pub_name, $lang_name); 
?>
<li class="active">
  <a href="#authors" data-toggle="tab">Authors</a>
</li>
<li>
  <a href="#languages" data-toggle="tab">Languages</a>
</li>
<li>
  <a href="#publishers" data-toggle="tab">Publishers</a>
</li>

如何根据isset变量在list-item上应用活动类？

Answer 1

<li class="<?php if(isset($tabs)){ echo 'active'; } ?>">
<a href="#authors" data-to....and so on