我们用wordpress开发企业主题的时候，如果有产品展示模块，那在浏览产品详情页的时候，我们经常会看到产品详情底部有一个相关产品显示。其实对于这个模块我们并不陌生，因为在我们写文章详情页的时候，也写过调用当前文章的相关文章代码，在这里我贴一段在wordpress企业主题开发中经常使用的相关产品调用代码。

<?php
			//get the taxonomy terms of custom post type
			$customTaxonomyTerms = wp_get_object_terms( $post->ID, \'product_category\', array(\'fields\' => \'ids\') );
			//query arguments
			$args = array(
			    \'post_type\' => \'products\',
			    \'post_status\' => \'publish\',
			    \'posts_per_page\' => 4,
			    \'orderby\' => \'rand\',
			    \'tax_query\' => array(
			        array(
			           \'taxonomy\' => \'product_category\',
			            \'field\' => \'id\',
			            \'terms\' => $customTaxonomyTerms
			        )
			    ),
			    \'post__not_in\' => array ($post->ID),
			);
			//the query
			$relatedPosts = new WP_Query( $args );
			//loop through query
			if($relatedPosts->have_posts()){
				echo \'<div class=\"related-products\">\';
				echo \'<h3>\' . __(\'Related Products\') . \'</h3>\';
			    echo \'<ul>\';
			    while($relatedPosts->have_posts()){ 
			        $relatedPosts->the_post();
			?>
			    <li>
			    	<a href=\"<?php the_permalink(); ?>\"><?php the_post_thumbnail(\'product_thumb\'); ?></a>
			    	<a href=\"<?php the_permalink(); ?>\"><?php the_title(); ?></a>
			    </li>
			<?php
			    }
			    echo \'</ul></div>\';
			}else{
			    //no posts found
			}
			//restore original post data
			wp_reset_postdata();
			?>