okies...
This code should be considered as an OPTION only, it works under MY set of circumstances, and that is all I intended. The below funtion will return the NAME of the GROUP if provided with the Group ID#
  function RC_posix_getgrgid($gid) 
    {
    $LocationGroup = "/etc/group"; //EDIT THIS IF YOU HAVE A DIFFERENT OS. mine = debian
    $fp = fopen ("/etc/group","r");
    while ($groupinfo = fscanf ($fp, "%[a-zA-Z0-9]:x:%[0-9]:%[a-zA-Z0-9]\n")) 
        {
        list ($name, $groupID, $nfi) = $groupinfo;
        if ($groupID == $gid)
            {
            $returnval = $name;
            }
        }
    fclose($fp);
    if($returnval) { return $returnval; } else { return 0; }
    }