Thread

Is there a way to only allow alpha_dash usernames?

Returns FALSE if the form element contains anything other than alpha-numeric characters, underscores or dashes.
http://ellislab.com/codeigniter/user-guide/libraries/form_validation.html

Hi AdamSmith,

There isn’t a way to change that in ExpressionEngine without making changes to the Core. However, you can use AJAX Form Validator to set your rules on the front end and disallow spaces and dashes.

Cheers,

Hi Dan,
I need something like this, too. How would I change it in the core? I don’t see any other option for me at moment than changing the core.
I am using the username in the URL, AJAX only is not safe enough for me.

Hey pimago,

I can move this over to the Community Help Forum if you would like. In support we are prefer not to guide folks through core changes. 😊

Cheers,

Hi Shane, I think I found it. I changed the user formatting check a little bit in expressionengine/libraries/validate.php. So far it’s working 😊

Thanks,
Phil

Hello Phil,

That’s awesome!

If you need anything else, please just let me know by opening a new thread.

Cheers,