Woo: показать пустые категории без товаров в виджете

functions.php

//* Used when the widget is displayed as a dropdown
add_filter( 'woocommerce_product_categories_widget_dropdown_args', 'sb_exclude_wc_widget_categories' );
//* Used when the widget is displayed as a list
add_filter( 'woocommerce_product_categories_widget_args', 'sb_exclude_wc_widget_categories' );
function sb_exclude_wc_widget_categories( $cat_args ) {
	$term = get_term_by('slug', 'uncategorized', 'product_cat');
	
	if ($term) {
		$cat_args['exclude'] = array( $term -> term_id); // category to exclude
		// remove category ID from include list if an include list exists
		if (isset($cat_args['include'])) {
			$includes = wp_parse_id_list($cat_args['include']);
			$key = array_search($term->term_id, $includes);
			if ( isset($includes[$key]) ) {
				unset( $includes[$key] ); // unset the category from include list
			}
			$cat_args['include'] = implode(', ', $includes);
		}
	return $cat_args;
	}
}