Nickname: éè and more

Dear all, i'd like that user could put in the nickname the following caracters:

éèòàùì and more. Where can I add it?

I tried to add here: return ( preg_match( '/^[a-zA-Z0-9_-]+$/', $arg0 ) and !file_exists( $dir['root'] . $arg0 ) );

but it didnt work.

Thanks a lot!

no solutions?

www.waslove.com

I was looking into "regular expressions" today maybe something like :

return ( preg_match( '/[:alpha:]*$/', $arg0 ) );

Havent tested this so not sure if it will work

Any one know how to add these special characters to nickname? Please help!