WordPress - 只显示父类别的帖子不是子类别的帖子

Question

我一直在努力从Wordpress中提取父类别的帖子。当我试图显示唯一的父类别发布wordpress查询显示子类别帖子以及。

如何忽略子类别的帖子。请帮助!!

<? 
// Get the post ID 
     $id = get_the_ID();   


     //get all the categories (this function will return all categories for a post in an array) 
     $category= get_the_category($id); 

     if ($category->category_parent == 0) { 

     //extract the first category from the array 
     $catID = $category[0]->cat_ID; 

     //Assign the category ID into the query 
     $verticalNavigationSwitcher = "cat=$catID&orderby=ID&order=ASC"; 
    }    


     $result = new WP_Query($verticalNavigationSwitcher); 


        //$featuredPosts->query('showposts=5&cat=3'); 
        while ($result->have_posts()) : $result->the_post(); 
     ?> 


    <li><a href='<?php the_permalink() ?>'><span><?php the_title(); ?></span></a></li> 


    <?php 
      endwhile; 
      wp_reset_postdata(); 
?> 

Answer 1

尝试使用此查询：

$verticalNavigationSwitcher = "category__in=$catID&orderby=ID&order=ASC";