Opencart：显示产品的所有子类别

Question

我正在使用opencart 3.x中的内置google base扩展，我需要一个特殊的标签来显示类别中所有子元素的格式为（Home> category1> category1_1）

这是我尝试调整的内置代码，该代码在下单后显示每个类别

$categories = $this->model_catalog_product->getCategories($product['product_id']);

                    foreach ($categories as $category) {
                        $path = $this->getPath($category['category_id']);

                        if ($path) {
                            $string = '';

                            foreach (explode('_', $path) as $path_id) {
                                $category_info = $this->model_catalog_category->getCategory($path_id);

                                if ($category_info) {
                                    if (!$string) {
                                        $string = $category_info['name'];
                                    } else {
                                        $string .= ' > ' . $category_info['name'];
                                    }
                                }
                            }

                            $output .= '<g:product_type><![CDATA[' . $string . ']]></g:product_type>';
                        }
                    }