LdapTools\AttributeConverter\ConvertPrimaryGroup::toLdap PHP Метод

    public function toLdap($value)
    {
        if (!$this->getLdapConnection()) {
            return $value;
        }
        $groupSid = $this->validateAndGetGroupSID($value);
        $groupSid = explode('-', (new ConvertWindowsSid())->setOperationType(self::TYPE_SEARCH_FROM)->fromLdap($groupSid));
        return end($groupSid);
    }