Disallow spaces in Username on registration?

[pianoman993]

Is it possible to disallow spaces in the username during registration? If so how?

All help is greatly appreciated!

- Pianoman993

[Kirk Y]

<a href="https://vborg.vbsupport.ru/showthread.php?t=159222" target="_blank">https://vborg.vbsupport.ru/showthread.php?t=159222</a>

[pianoman993]

I did that but then it would not let anybody register.

It just keeps saying

That username is already in use or does not meet the administrator's standards. If you are ilovemusic and you have forgotten your password, click here.

To everything, spaces or no spaces. Any ideas why?

[Kirk Y]

Sorry, Dismounted's REGEX must be off.

Give this a try (little rusty, but should work) --
^[a-zA-Z0-9]+$Should allow only upper/lower alphanumeric.

[pianoman993]

Great thank you! I'll try that out and get back to you :)

[Dismounted]

You shouldn't actually need the uppercase "A-Z", as vBulletin automatically makes it case-insensitive.
^[a-z0-9]+$