/**
* Generates BreadcrumbList structured data.
*
* Hooked into `woocommerce_breadcrumb` action hook.
*
* @param WC_Breadcrumb $breadcrumbs Breadcrumb data.
*/
public function generate_breadcrumblist_data($breadcrumbs)
{
$crumbs = $breadcrumbs->get_breadcrumb();
$markup = array();
$markup['@type'] = 'BreadcrumbList';
$markup['itemListElement'] = array();
foreach ($crumbs as $key => $crumb) {
$markup['itemListElement'][$key] = array('@type' => 'ListItem', 'position' => $key + 1, 'item' => array('name' => $crumb[0]));
if (!empty($crumb[1]) && sizeof($crumbs) !== $key + 1) {
$markup['itemListElement'][$key]['item'] += array('@id' => $crumb[1]);
}
}
$this->set_data(apply_filters('woocommerce_structured_data_breadcrumblist', $markup, $breadcrumbs));
}
