Sigma Chat integration for non-platinum users

Introduction
This hack integrates your forum with the Sigma Chat software provided by Raidersoft. Unlike the other Sigma integration hack, this one will work for users who own the Professional (entry-level) license, rather than the more expensive Platinum license.

What does it do?
This hack means that only registered forum users will be able to access the chat room. Additionally, they will only be able to chat using the same username as they have on the forum. If someone who isn't registered (or logged in) tries to visit the chat room they will see the standard "No Permission" vBulletin screen.

Is it complicated to install?
No, it's simple. You don't need to edit any VB files, you simply upload one new file (chat.php) to your forum directory and add one new template via your Admin CP.

Support?
Yes, I will support this hack. PM me if you need any help.

Demo?
I've installed this on a colleagues server. You can see the chat integration in action (you will need to register) at at this site

I also used some code (which limits the username length to 15 characters) which was originally created by wot-Mike for his vB2.x chat hack - so all credit to him.

Hope it proves useful for you - please let me know if you use it

[akoj]

I tried setting up a conditional to stop users in groups 4, 1, 3, 8, 10 from using the chat. But I get an unexpected parse error. Can someone please tell me what I did wrong? Thanks!!

<?php
error_reporting(E_ALL & ~E_NOTICE);
define('THIS_SCRIPT', 'chat');
require_once('./global.php');
$globaltemplates = array('chatroom');

  if ($bbuserinfo[userid]=='') {
	print_no_permission();
  }($userinfo[' 4, 1, 3, 8, 10 '] == $usergroupid) {
	print_no_permission();
  } else {
     $username1=ereg_replace("[^A-Za-z0-9]", "_", $bbuserinfo['username']); 
     $myLength = strlen( $username1 ); 
     if ($myLength > 15) { 
      $username = substr( $username1, 0, 15 ); 
     } else { 
      $username = $username1; 
    }
   eval('print_output("' . fetch_template('chatroom') . '");');
  }
?>

[aberg]

This hack works great,but there is one little bug in it.
When users chat the forum don't count this users anymore.
So on the forumhome there are as example 10 users online browsing the forum, and there are in the chat 5 users online.
The board is counting than only 10 members online and not 15.
Anyone a idea how this bug can fixed??