Bài viết liên quan cho wordpress

<?php
$categories = get_the_category($post->ID);
if ($categories) {
$category_ids = array();
foreach($categories as $individual_category) $category_ids[] = $individual_category->term_id;
$args=array(
'category__in' => $category_ids,
'post__not_in' => array($post->ID),
'showposts'=>4,
'ignore_sticky_posts'=>1
);
$my_query = new wp_query($args);
if( $my_query->have_posts() ) {
echo '<div class="label_splienquan"><h4><span>Bài viết liên quan</span></h4></div>';
echo '<div class="row sanpham_lienquan">';
echo '<div class="col-md-12">';
while ($my_query->have_posts()) :
$my_query->the_post();
?>
<div class="list_sanpham_lienquan col-md-3 col-sm-6 col-xs-12">
<div class="new-img">
<a href="<?php the_permalink(); ?>"><?php the_post_thumbnail(array(150, 150)); ?>
</a>
</div>
<div class="item-list">
<h4><a href="<?php the_permalink() ?>" title="<?php the_title_attribute(); ?>">
<?php the_title(); ?></a>
</h4>
<div class="thongtinsp_lienquan"> <!-- Thông tin sản phẩm -->
<div class="gia_sp_lienquan">Giá: <span><?php the_field('gia_duan'); ?></span></div>
</div>
</div>
</div>
<?php endwhile ; wp_reset_query() ;?>
</div>
<?php }
}
?>