Woocommerce:检查当前产品是否在'XXX‘的子类别中

// 获取当前产品的ID
$product_id = get_the_ID();

// 获取当前产品所属的所有分类
$categories = wp_get_post_terms($product_id, 'product_cat', array('fields' => 'ids'));

// 检查分类是否包含'XXX'的子类别
$has_subcategory = false;
foreach ($categories as $category_id) {
    $subcategory_args = array(
        'parent' => $category_id,
        'taxonomy' => 'product_cat',
    );
    $subcategories = get_categories($subcategory_args);
    foreach ($subcategories as $subcategory) {
        if ($subcategory->name == 'XXX') {
            $has_subcategory = true;
            break;
        }
    }
}

// 输出结果
if ($has_subcategory) {
    echo "当前产品在'XXX'的子类别中。";
} else {
    echo "当前产品不在'XXX'的子类别中。";
}