如何在不先加载父产品类别的情况下使用此 woocommerce 产品手风琴？

Question

 * WooCommerce Product List as accordion (BS5)
 */
function ct_render_cat_list()
{
    global $wp_query;
    $current_cat = $wp_query->get_queried_object();
    $current_term_id = null;
    $current_parent_id = isset($current_cat->term_id) ? $current_cat->term_id : null;
    if (!is_null($current_parent_id)) {
        if ($current_cat->parent != 0) {
            $current_parent_id = $current_cat->parent;
        }
        $current_term_id = $current_cat->term_id;
    }
    /**
     * Product categories list
     */
    $args = array(
        'taxonomy' => 'product_cat',
        'hide_empty' => true,
        'parent' => 0,
    );
    $product_cat = get_terms($args);

    echo '<div class="accordion" id="accordionExample">';
    foreach ($product_cat as $parent_product_cat) {
        $parent_id = $parent_product_cat->term_id;
        // skip 'Uncategorized'
        if ($parent_product_cat->term_id == '15') {
            continue;
        }
        $button = '
                  <a class="accordion-button collapsed text-decoration-none" href="' . get_term_link($parent_product_cat->term_id) . '">
                    ' . $parent_product_cat->name . ' (' . $parent_product_cat->count . ')
                  </a>
            ';
        if ($parent_id == $current_parent_id) {
            $button = '<button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#collapse' . $parent_id . '" aria-expanded="true" aria-controls="collapse' . $parent_id . '">
                       ' . $parent_product_cat->name . ' (' . $parent_product_cat->count . ')
                    </button>';
        }
        echo '
<div class="accordion-item">
    <h2 class="accordion-header" id="headingOne">
        ' . $button . '
    </h2>
          ';
        if ($parent_id == $current_parent_id) {
            $child_args = array(
                'taxonomy' => 'product_cat',
                'hide_empty' => false,
                'parent' => $parent_product_cat->term_id
            );
            $child_product_cats = get_terms($child_args);
            if (!empty($child_product_cats)) :
                echo '<div id="collapse' . $parent_id . '" class="accordion-collapse collapse show" aria-labelledby="headingOne" data-bs-parent="#accordionExample">
              <div class="accordion-body"> ';
                echo "<ul class='navbar-nav me-auto mb-2 mb-md-0 '>";
                foreach ($child_product_cats as $child_product_cat) {
                    $active_class = '';
                    if ($current_term_id == $child_product_cat->term_id) {
                        $active_class = 'active';
                    }
                    echo '<li class="nav-item"><a href="' . get_term_link($child_product_cat->term_id) . '" class="nav-link link-dark ' . $active_class . '">' . $child_product_cat->name . ' (' . $child_product_cat->count . ')</a></li>';
                }
                echo '</ul>';
                echo '</div>
                </div> <!-- / accordion-collapse -->';
            endif;
        }
        echo '</div> <!-- accordion-item -->';
    }
    echo '</div> <!-- / accordion -->';
}

以下是将产品类别显示为手风琴的代码。对我来说，这里的问题是，如果我想打开手风琴，我首先必须加载 $parent_product_cat 但我想在不加载它的情况下使用手风琴并立即显示下拉列表。目前页面上的主要类别是锚标记，当加载主要类别时它们将更改为按钮。希望你能明白我的意思:)