Retrieves HTML list content for category list.

• Walker::walk(): for parameters and return description.

$args mixed Required

Elements array, maximum hierarchical depth and optional additional arguments.

string

File: wp-includes/category-template.php. View all references

function walk_category_tree( ...$args ) {
	// The user's options are the third parameter.
	if ( empty( $args[2]['walker'] ) || ! ( $args[2]['walker'] instanceof Walker ) ) {
		$walker = new Walker_Category;
	} else {
		/**
		 * @var Walker $walker
		 */
		$walker = $args[2]['walker'];
	}
	return $walker->walk( ...$args );
}