BBCode URL for Members Only

[Fallback]

Theres a link for registered members hack here https://vborg.vbsupport.ru/showthread.php?t=81467

but you can easily get around it via using bbcode url tags. How can you make sure bbcode url tags are parsed for members only also giving guests a promt to register instead of the link?

I tried using conditionals in the functions_bbode_parse.php but Im getting regex errors. I tried this...

global $bbuserinfo;
if ($bbuserinfo[userid] != 0)
{
// [URL=XXX]
$bbcodes['standard']['find']['[url='] = '#\[url=("|"|\'|)(.*)\\1\](.*)\[/url\]#esiU';
$bbcodes['standard']['replace']['[url='] = "handle_bbcode_url('\\3', '\\2', 'url')";
$bbcodes['standard']['recurse']['url'][1] = array('handler' => 'handle_bbcode_url');


}
else
{
$bbcodes['standard']['find']['[url='] = '#\[url=("|"|\'|)(.*)\\1\](.*)\[/url\]#esiU';

$bbcodes['standard']['replace']['[url]'] = "Guests cannot view links. You must <a href='register.php'>register</a> to see links.";

}

willing to pay for this hack.