PHPExiftool\Reader::sort PHP Method

    public function sort($by)
    {
        static $availableSorts = array('directory', 'filename', 'createdate', 'modifydate', 'filesize');
        foreach ((array) $by as $sort) {
            if (!in_array($sort, $availableSorts)) {
                continue;
            }
            $this->sort[] = $sort;
        }
        return $this;
    }