查询自定义分类法下面同分类的帖子(related products)

// Get the current post ID
$current_post_id = get_the_ID();

// Get the terms of the custom taxonomy associated with the current post
$terms = get_the_terms($current_post_id, 'custom_taxonomy');

if ($terms && !is_wp_error($terms)) {
    $term_ids = array();
    foreach ($terms as $term) {
        $term_ids[] = $term->term_id;
    }

    // Query the custom post type posts with the same taxonomy term
    $related_args = array(
        'post_type' => 'custom_post_type',
        'tax_query' => array(
            array(
                'taxonomy' => 'custom_taxonomy',
                'field'    => 'term_id',
                'terms'    => $term_ids,
            ),
        ),
        'post__not_in' => array($current_post_id), // Exclude the current post
        'posts_per_page' => -1, // Retrieve all related posts
    );

    $related_query = new WP_Query($related_args);

    // Output the related posts
    if ($related_query->have_posts()) {
        while ($related_query->have_posts()) {
            $related_query->the_post();
            // Display related post information here
            // Example: echo '<h2>' . get_the_title() . '</h2>';
        }
        wp_reset_postdata();
    } else {
        // No related posts found
        // You can output a message here if needed
    }
}