我有一个自定义的分类查询设置，它显示来自相同帖子类型并共享相同分类术语的帖子。标记如下所示：

        <?php  
        $terms = wp_get_post_terms( $post->ID, \'products-category\' );
        if($terms){
          // post has course_type terms attached
          $course_terms = array();
          foreach ($terms as $term){
           $course_terms[] = $term->slug;
          }

         $original_query = $wp_query;
         $wp_query = null;
         $wp_query = new WP_Query( array(
         \'post_type\' => \'regularproducts\',
         \'tax_query\' => array(
          array(
         \'taxonomy\' => \'products-category\',
         \'field\' => \'slug\',
         \'terms\' => $course_terms, //the taxonomy terms I\'d like to dynamically query
         \'posts_per_page\' => \'4\'
            ),
          ),
          \'orderby\' => \'title\',
          \'order\' => \'ASC\'
          ) );

        if ( have_posts() ): ?>
...etc

但尽管我使用\'posts_per_page\' => \'4\' 它仍然显示所有相关的帖子，而不仅仅是4篇。我不明白为什么，如果您有任何建议，我将不胜感激！

\'post_type\' => \'regularproducts\',
\'tax_query\' => array(
    array(
        \'taxonomy\' => \'products-category\',
        \'field\' => \'slug\',
        \'terms\' => $course_terms, //the taxonomy terms I\'d like to dynamically query
        \'posts_per_page\' => \'4\'
    ),
),
\'orderby\' => \'title\',

$wp_query = new WP_Query(
    array(
        \'posts_per_page\' => \'4\',
        \'post_type\' => \'regularproducts\',
        \'tax_query\' => array(
            array(
                \'taxonomy\' => \'products-category\',
                \'field\' => \'slug\',
                \'terms\' => $course_terms, //the taxonomy terms I\'d like to dynamically query
            ),
        ),
        \'orderby\' => \'title\',
        \'order\' => \'ASC\',
    )
);