PHPDaemon\Clients\Mongo\Pool::getIndexName PHP Метод

    public function getIndexName($keys)
    {
        $name = '';
        $first = true;
        foreach ($keys as $k => $v) {
            $name .= ($first ? '_' : '') . $k . '_' . $v;
            $first = false;
        }
        return $name;
    }