很多时候我们在 WordPress 主题分类文章列表访问时，侧边栏的小工具都是显示站点所有的热门标签，那如果才能显示 WordPress 当前分类列表的标签呢，下面创客云给大家提供一个解决方案，可以显示 WordPress 当前的分类标签，需要在 wordpress 主题的核心文章 funtion 里面添加如下的代码：

1. function get_category_tags($args) {

2.     global $wpdb;

3.     $tags = $wpdb->get_results

4.     ("

5.         SELECT DISTINCT terms2.term_id as tag_id, terms2.name as tag_name

6.         FROM

7.             $wpdb->posts as p1

8.             LEFT JOIN $wpdb->term_relationships as r1 ON p1.ID = r1.object_ID

9.             LEFT JOIN $wpdb->term_taxonomy as t1 ON r1.term_taxonomy_id = t1.term_taxonomy_id

10.             LEFT JOIN $wpdb->terms as terms1 ON t1.term_id = terms1.term_id,

11.             $wpdb->posts as p2

12.             LEFT JOIN $wpdb->term_relationships as r2 ON p2.ID = r2.object_ID

13.             LEFT JOIN $wpdb->term_taxonomy as t2 ON r2.term_taxonomy_id = t2.term_taxonomy_id

14.             LEFT JOIN $wpdb->terms as terms2 ON t2.term_id = terms2.term_id

15.         WHERE

16.             t1.taxonomy = 'category' AND p1.post_status = 'publish' AND terms1.term_id IN (".$args['categories'].") AND

17.             t2.taxonomy = 'post_tag' AND p2.post_status = 'publish'

18.             AND p1.ID = p2.ID

19.         ORDER by tag_name

20.     ");

21.     $count = 0;

22.     if($tags) {

23.         foreach ($tags as $tag) {

24.             $mytag[$count] = get_term_by('id', $tag->tag_id, 'post_tag');

25.             $count++;

26.         }

27.     } else {

28.       $mytag = NULL;

29.     }

30.     return $mytag;

31. }

其次，将下面调用输出代码，添加到主题 archive.php 模板适当位置：

1. <?php

2.     $cat= single_cat_title('', false);

3.     $args = array( 'categories' => get_cat_ID($cat));

4.     $tags = get_category_tags($args);

5.     $content .= "<ul class='cat-tag'>";

6.     if(!empty($tags)) {

7.         foreach ($tags as $tag) {

8.             $content .= "<li><a href="".get_tag_link($tag->term_id)."">".$tag->name."</a></li>";

9.         }

10.     }

11.     $content .= "</ul>";

12.     echo $content;

13. ?>

最后，再适当加上样式即可：

1. .cat-tag{

2.     float: left;

3.     width: 100%;

4. }

5. .cat-tag li a{

6.     float: left;

7.     margin: 0 5px;

8. }