Php Wordpress类别/子类别

嘿！我需要一个函数，只提取类别的子类别。。在wordpress中，不是子类别的子类别。谢谢

     <?php if (is_category()) {

  $this_category = get_category($cat);
  if (get_category_children($this_category->cat_ID) != "") {


   $args = array('child_of' => $this_category->cat_ID);
   $subcategorii = get_categories($args);
     foreach($subcategorii as $subcategorie) {
          echo ' <li class="postWrapper" id="categorie"><a href="'.$subcategorie->link.'"><h5>'.$subcategorie->name.'</h5></a>';
          query_posts('cat='.$subcategorie->term_id.'&posts_per_page=3');
          if ( has_post_thumbnail() ) the_post_thumbnail( 'mic' );  
        echo '<ul>';    
        if ( have_posts() ) : while ( have_posts() ) : the_post();

          echo '<li><a href="'.get_permalink().'">'.get_the_title().'</a></li>';

      endwhile; 
        echo '</ul>';
        echo '</li>';
      else:
        echo 'niciun articol!'; 
      endif;

    //Reset Query
    wp_reset_query(); 
     }
  } else {
      query_posts('cat='.$this_category->cat_ID.'&posts_per_page=3');
        echo '';
        if ( have_posts() ) : while ( have_posts() ) : the_post();

        echo '<li class="postWrapper" id="post">';

         echo '<a href="'.get_permalink().'">'; if ( has_post_thumbnail() ) the_post_thumbnail( 'mic' );    

          echo '<h3 class="postTitle">'.get_the_title().'</h3></a>'; 




          echo '</li>';

      endwhile; 
        echo '';
      else:
        echo 'niciun articol!'; 
      endif;    
   } 
}

?>

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可能是这样的吧

foreach($subcategorii as $subcategorie) {

   if ($subcategorie->post_parent == $this_category->cat_ID) {

   // do stuff

   }  

 } 

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记住if语句中的双等号（==和！==）