array($post_id), 'posts_per_page' => 1, 'post_status' => 'publish', 'post_type' => 'product', 'tax_query' => array( array( 'taxonomy' => 'product_cat', 'field' => 'id', 'terms' => $categories_as_array ))); $r_single = new WP_Query($query_args); if ($r_single->have_posts()) { $r_single->the_post(); global $product; ?> ID, 'product_cat' ); foreach ( $terms as $term ) $cats_array[] = $term->term_id; // get all posts in current categories $query_args = array('posts_per_page' => -1, 'post_status' => 'publish', 'post_type' => 'product', 'tax_query' => array( array( 'taxonomy' => 'product_cat', 'field' => 'id', 'terms' => $cats_array ))); $r = new WP_Query($query_args); // show next and prev only if we have 3 or more if ($r->post_count > 2) { $prev_product_id = -1; $next_product_id = -1; $found_product = false; $i = 0; $current_product_index = $i; $current_product_id = get_the_ID(); if ($r->have_posts()) { while ($r->have_posts()) { $r->the_post(); $current_id = get_the_ID(); if ($current_id == $current_product_id) { $found_product = true; $current_product_index = $i; } $first_product_index = ''; $is_first = ($current_product_index == $first_product_index); if ($is_first) { $prev_product_id = get_the_ID(); // if product is first then 'prev' = last product } else { if (!$found_product && $current_id != $current_product_id) { $prev_product_id = get_the_ID(); } } if ($i == 0) { // if product is last then 'next' = first product $next_product_id = get_the_ID(); } if ($found_product && $i == $current_product_index + 1) { $next_product_id = get_the_ID(); } $i++; } if ($prev_product_id != -1) { ShowLinkToProduct($prev_product_id, $cats_array, "next"); } if ($next_product_id != -1) { ShowLinkToProduct($next_product_id, $cats_array, "prev"); } } wp_reset_postdata(); } } ?>