WC_AJAX::add_new_attribute PHP Méthode

    public static function add_new_attribute()
    {
        check_ajax_referer('add-attribute', 'security');
        if (current_user_can('manage_product_terms')) {
            $taxonomy = esc_attr($_POST['taxonomy']);
            $term = wc_clean($_POST['term']);
            if (taxonomy_exists($taxonomy)) {
                $result = wp_insert_term($term, $taxonomy);
                if (is_wp_error($result)) {
                    wp_send_json(array('error' => $result->get_error_message()));
                } else {
                    $term = get_term_by('id', $result['term_id'], $taxonomy);
                    wp_send_json(array('term_id' => $term->term_id, 'name' => $term->name, 'slug' => $term->slug));
                }
            }
        }
        die(-1);
    }