display product from same categories related products woocommerce
<?php
/**
* Related Products
*
* This template can be overridden by copying it to yourtheme/woocommerce/single-product/related.php.
*
* HOWEVER, on occasion WooCommerce will need to update template files and you
* (the theme developer) will need to copy the new files to your theme to
* maintain compatibility. We try to do this as little as possible, but it does
* happen. When this occurs the version of the template file will be bumped and
* the readme will list any important changes.
*
* @see https://docs.woocommerce.com/document/template-structure/
* @author WooThemes
* @package WooCommerce/Templates
* @version 3.9.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
global $product, $woocommerce_loop;
if ( empty( $product ) || ! $product->exists() ) {
return;
}
if ( ! $related = $product->get_related( $posts_per_page ) ) {
return;
}
// Get ID of current product, to exclude it from the related products query
$current_product_id = $product->get_id();
$cats_array = array(0);
// get categories
$terms = wp_get_post_terms( $product->id, 'product_cat' );
// select only the category which doesn't have any children
foreach ( $terms as $term ) {
$children = get_term_children( $term->term_id, 'product_cat' );
if ( !sizeof( $children ) )
$cats_array[] = $term->term_id;
}
$args = apply_filters( 'woocommerce_related_products_args', array(
'post_type' => 'product',
'post__not_in' => array( $current_product_id ), // exclude current product
'ignore_sticky_posts' => 1,
'no_found_rows' => 1,
'posts_per_page' => $posts_per_page,
'orderby' => $orderby,
'tax_query' => array(
array(
'taxonomy' => 'product_cat',
'field' => 'id',
'terms' => $cats_array
),
)
));
$products = new WP_Query( $args );
$woocommerce_loop['name'] = 'related';
$woocommerce_loop['columns'] = apply_filters( 'woocommerce_related_products_columns', $columns );
if ( $products->have_posts() ) : ?>
<section class="related products">
<?php
$heading = apply_filters( 'woocommerce_product_related_products_heading', __( 'Related products', 'woocommerce' ) );
if ( $heading ) :
?>
<h2><?php echo esc_html( $heading ); ?></h2>
<?php endif; ?>
<?php woocommerce_product_loop_start(); ?>
<?php while ( $products->have_posts() ) : $products->the_post(); ?>
<?php wc_get_template_part( 'content', 'product' ); ?>
<?php endwhile; // end of the loop. ?>
<?php woocommerce_product_loop_end(); ?>
</section>
<?php endif;
wp_reset_postdata();