相关文章查询方法

<div class="related-content">
                <?php  global $post; $tags = wp_get_post_terms( $post->ID, '$taxonomy' );
if ( $tags ) {
$first_tag = $tags[ 0 ]->term_id;
$args = array(
               'post_type' => '$post-type',
               'post__not_in' => array( $post->ID ),
               'tax_query' => array(
                                array(
                                    'taxonomy' => '$taxonomy',
                                    'field'    => 'term_id',
                                    'terms'    => $first_tag,
                                ),
                            ),
		);
$my_query = new WP_Query( $args );
if ( $my_query->have_posts() ) {
while ( $my_query->have_posts() ): $my_query->the_post();?>

                /* ================
                       Loop 
                 ===============*/

                <?php endwhile;wp_reset_postdata();
                              }}
                        else { 
                              echo '<p>* 暂无相关文章</p>';
                             }?>
</div>