wordpress自定义帖子类型按标签ID循环 _WordPress开发

我正在尝试通过标签ID使帖子的自定义类型循环。
这是原始代码：

< ?php $args = array('post_type' => 'kana_portfolio', 'meta_key'=> 'choose_layout_2', 'meta_value' => 'layout-1', 'posts_per_page' => -1); $posts = get_posts($args); $term_array = array(); $portfolio_term_array = array(); foreach ( $posts as $post ) : setup_postdata( $post ); $terms = wp_get_post_terms( get_the_ID(), 'kana_genre'); foreach($terms as $term){$term_array[$term-> slug] = $term-> name; $portfolio_term_array[] = $term-> slug; }endforeach; wp_reset_postdata(); ?>

因为我只需要循环ID为31的特定类别(自定义帖子类型)中的帖子, 所以我在” ‘ posts_per_page’ => -1″ 之后添加了” ‘ tag_id’ => 31″

< ?php $args = array('post_type' => 'kana_portfolio', 'meta_key'=> 'choose_layout_2', 'meta_value' => 'layout-1', 'posts_per_page' => -1, 'tag_id' => 31); $posts = get_posts($args); $term_array = array(); $portfolio_term_array = array(); foreach ( $posts as $post ) : setup_postdata( $post ); $terms = wp_get_post_terms( get_the_ID(), 'kana_genre'); foreach($terms as $term){$term_array[$term-> slug] = $term-> name; $portfolio_term_array[] = $term-> slug; }endforeach; wp_reset_postdata(); ?>

[编辑]
【wordpress自定义帖子类型按标签ID循环】我在页面下面有另一个循环, 我尝试插入’ cat’ => 31 tax_query数组

< ?php $number_posts_to_display = get_field('number_of_posts_to_display'); $display_order = get_field('post_display_order'); $portfolio = array('post_type' => 'kana_portfolio', 'posts_per_page' => $number_posts_to_display, 'order' => $display_order, 'meta_key'=> 'choose_layout_2', 'meta_value' => 'layout-1', 'tax_query' => array(array('taxonomy' => 'kana_genre', 'field'=> 'slug', 'terms'=> $portfolio_term_array, ), ), ); $portfolio_loop = new WP_Query($portfolio); ?>

但是什么也没显示, 怎么办？
#1如果你的类别(这里是分类类别的真实类别, … )是31, 则应使用’ cat’ => 31, 标签是标签, 而不是类别。如果有帮助, 请告诉我。如果你尝试过滤标签, 但该标签无法正常工作, 请告诉我, 请深入了解。
玩得开心！
#2代替：