Habari\Terms::tree_sort PHP Метод

    function tree_sort($sort_fn = null)
    {
        if (empty($sort_fn)) {
            $sort_fn = function ($a, $b) {
                return $a->mptt_left > $b->mptt_left;
            };
        }
        $terms = $this->getArrayCopy();
        usort($terms, $sort_fn);
        return new Terms($terms);
    }