XF 1.2 Username special characters

[Chojo]

Hi, I'm using an expression to contain username for only alpha numeric but some users are able to create their username with special characters

My expression: ^[a-zA-Z0-9_.-àöäüÖÄÜß\s]+$
Example of special characters: ¤

Dunno how I can block that? Sorry for my poor english and ty for the help.

 

[Hoffi]

a dot matches any single character, you mus escape the dot.

 

[Chojo]

a dot matches any single character, you mus escape the dot.

so my new expression need to be
^[a-zA-Z0-9_-àöäüÖÄÜß\s]+$

?

 

[Jeremy]

If you want to allow period you need to replace it with \. which will for it to be a period within the name.

 

[Hoffi]

then, you did not allow the dot. If you want the dot this should work:

^[a-zA-Z0-9_-àöäüÖÄÜß\s\.]+$

But, if your locale is set corrctly, you can use this short term:

^[\w\s\.]+$

http://www.php.net/manual/en/regexp.reference.escape.php