Fixed Usernames not showing the letter "V" in them?

[darren]

I've disabled addons in the config.php so I can't see it being an addon issue.

A user just made an account with the letter "V" in and it just replaced it with a space so "glove" would be "glo e" for example.

Any help would be greatly appreciate, "V" is not in the named letters from usernames btw.

 

[Jeremy]

What is your user name validation regex?

 

[Mike]

A URL would help too.

 

[darren]

What is your user name validation regex?

Sorry Jeremy, not sure what you mean by Regex?

 

[darren]

A URL would help too.

http://myspain.es/community/members/foxesglo-e.3866/

I've made an account up myself (in admin cp) and it does the same.

 

[Mike]

Do you think you could submit a ticket via the customer area with FTP and ACP details?

It looks like your PCRE doesn't have \v (vertical white space). This is the first time I've seen this though.

 

[darren]

Do you think you could submit a ticket via the customer area with FTP and ACP details?

It looks like your PCRE doesn't have \v (vertical white space). This is the first time I've seen this though.

Done Mike and thank you.

 

[RoyalRumble]

Same problem here! Will do as @Mike suggested.

 

[Mike]

This is related to a 5+ years old PCRE install. You should probably contact your host about it. In general, it's preferable for PHP to be compiled with the built-in PCRE library (rather than the server version).

 

[Veer]

Same problem here too.

 

[Mike]

The fix is to replace this code in library/XenForo/DataWriter/User.php:

$newName = preg_replace('/\v+/u', ' ', $username);
if (is_string($newName))
{
        $username = $newName;
}

With:

// if this matches, then \v isn't known (appears to be PCRE < 7.2) so don't strip
if (!preg_match('/\v/', 'v'))
{
        $newName = preg_replace('/\v+/u', ' ', $username);
        if (is_string($newName))
        {
                $username = $newName;
        }
}

 

[Veer]

Thank you Mike, but my host has resolved this for me (without applying the fix above my post).