How can I allow Arabic usernames in WordPress

Question

I want to let users put there username in Arabic when they register a new account, I tried a lot of methods put problem still unsolved

Answer 1

You can try WordPress Special Characters in Usernames plugin. This plugin enables usernames containing special characters (russian, cyrillic, arabic) on your WordPress blog.

Answer 2

By default WordPress limits non-Latin characters on usernames for security reasons but To allow users to use non-Latin letters in the username field, you can use the following code:

add_filter('sanitize_user', 'non_strict_login', 10, 3);
function non_strict_login( $username, $raw_username, $strict ) {

    if( !$strict )
        return $username;

    return sanitize_user( stripslashes( $raw_username ), false );
}

Add the above code to the 'functions.php' file in your WordPress theme's directory.