FreeLancer

        $sql = "INSERT INTO cms_users (login, nickname, password, email, regdate, birthdate, openid)
                VALUES ('$login', '$nickname', '$pass', '$email', NOW(), '$birthdate', '{$profile->identity}')";

        $sql = "INSERT INTO cms_users (login, nickname, password, email, regdate, birthdate, rating, openid)
                VALUES ('$login', '$nickname', '$pass', '$email', NOW(), '$birthdate', '50', '{$profile->identity}')";

$nickname = $inCore->request('nickname', 'str', '');

$is_nickname = $inDB->get_field('cms_users', "nickname = '$nickname'", 'nickname');
if($is_nickname) { $msg .= 'Выбранный никнейм занят<br/>'; }