在WooCommerce循环产品标题中显示来自特定父项的子产品类别

add_filter( 'woocommerce_product_loop_title', 'custom_product_loop_title', 10, 2 );
function custom_product_loop_title( $title, $product ) {
    if ( $product->is_type( 'variable' ) ) {
        $parent_id = $product->get_parent_id();
        $parent = wc_get_product( $parent_id );
        $categories = $parent->get_category_ids();
        $category_names = array();
        foreach ( $categories as $category_id ) {
            $category = get_term_by( 'id', $category_id, 'product_cat' );
            $category_names[] = $category->name;
        }
        $category_names = implode( ', ', $category_names );
        $title .= ' (' . $category_names . ')';
    }
    return $title;
}