$nickname = $arr['nickname'] = strtolower($nickname);
- if(! preg_match("/^[a-z][a-z0-9\-\_]*$/",$nickname))
- $result['message'] .= t('Your "nickname" can only contain "a-z", "0-9", "-", and "_", and must also begin with a letter.') . EOL;
+ if(! preg_match("/^[a-z0-9][a-z0-9\_]*$/",$nickname))
+ $result['message'] .= t('Your "nickname" can only contain "a-z", "0-9" and "_".') . EOL;
$r = q("SELECT `uid` FROM `user`
WHERE `nickname` = '%s' LIMIT 1",
dbesc($nickname)