Login with non English alphabet

[A.M.A]

Still cant register with none English alphabet user name.. in my case Arabic. will the same fix for yabbse work with SMF in :

Code Select Expand

if (!preg_match('/^[\s0-9A-Za-z#,-\.:=?@^_äöéèöüçåãâáàßêìíîïðñòóôõøùúûýÿ]+$/', $_POST['user']) || $_POST['user'] == '_' || $_POST['user'] == '|')

[A.M.A]

I've changed the code:

Code Select Expand

!preg_match('/^[\s0-9A-Za-z#,-\.:=?@^_äöéèöüçåãâáàßêìíîïðñòóôõøùúûýÿ]+$/'
to

Code Select Expand

preg_match('/^[\<\>\+\$\[\]~!@#%^&\*\(\)]+$/'

in both Register.php and LogInOut.php and it worked with none English alphabet! but is that right!! i.e. will it cause any security risk or something!