[M.Iftikhar]

Hello please tell me how can i do that
i fond these line that Nerbert said
split(.........)

to

preg_split (..........).

i found these two line

  $ignore_users = split(',', $vbulletin->options['ae_ignore_users']);
                $ignore_groups = split(',', $vbulletin->options['ae_ignore_groups']);

does this is right

  $ignore_users = preg_split(',', $vbulletin->options['ae_ignore_users']);
                $ignore_groups = preg_split(',', $vbulletin->options['ae_ignore_groups']);

// ==================================================================

                $ignore_users = split(',', $vbulletin->options['ae_ignore_users']);
                $ignore_groups = split(',', $vbulletin->options['ae_ignore_groups']);
                
                if( !empty($vbulletin->userinfo['userid']) AND !in_array($vbulletin->userinfo['userid'], $ignore_users) AND !is_member_of($vbulletin->userinfo, $ignore_groups) )
                {
                    $idstack = null;
                    if( isset($_COOKIE['IDstack']) )
                    {
                        // check to see if multiple user history exists
                        $idstack = $_COOKIE['IDstack'];
                    }
    
                    if( empty($idstack) )
                    {
                        $idstack = ",{$vbulletin->userinfo['userid']},";
                        setcookie("IDstack", $idstack, time()+10368000, "/");
                    }
                    else
                    {
                        if(!strstr($idstack, ",{$vbulletin->userinfo['userid']},"))
                        {
                            $idstack .= ",{$vbulletin->userinfo['userid']},";
                            setcookie("IDstack", $idstack, time()+10368000, "/");
    
                            $Unums = split(",", $idstack);
                            $andids = null;
                            $numvs = 0;
                            
                            for ($i = 0; $i < (sizeof($Unums)); $i++) 
                            {
                                if( verify_id('user', $Unums[$i], FALSE, -1, -1) )
                                {
                                    if (!empty($Unums[$i]) && is_numeric($Unums[$i])) {        
                                        $checkuser = $vbulletin->db->query_first("SELECT username FROM " . TABLE_PREFIX . "user WHERE userid={$Unums[$i]}");
                                        if ( !empty($andids) ) $andids .= "and";
                                        $andids .= "  ". $checkuser['username'] ." ";
                                        $numvs++;
                                    }
                                }
                            }
                            
                            // Make sure we have at least 2 valid user violations
                            if ( $numvs < 2 ) return;
                            
                            $allowsmilie = '1';
                            $visible = '1';
                            //$message = construct_phrase($vbphrase['multiplelogin_alert'], htmlspecialchars_uni($vbulletin->userinfo['username']), $andids);
                            $message = htmlspecialchars_uni($vbulletin->userinfo['username']) . " seems to have multiple personalities using $andids sharing the same computer. No soup for you! and you! and you!";

                            // get admin users
                            $adminusers = split(",", $vbulletin->options['ae_adminusers']);
                            $fromuser = fetch_userinfo($vbulletin->options['ae_sender']);
                            $subject = $vbulletin->userinfo['username'] . " tripped AE detector";
                            
                            // create the DM to do error checking and insert the new PM (needs to be here)
                            $pmdm =& datamanager_init('PM', $vbulletin, ERRTYPE_SILENT);
                            $ipaddress = $vbulletin->config['ae_adminip'];
    
                            if($vbulletin->options['ae_sendpm'] == '1')
                            {
                                $pmdm->set('fromuserid', $fromuser['userid']);
                                $pmdm->set('fromusername', $fromuser['username']);
                                $pmdm->set_info('reciept', false);
                                $pmdm->set_info('savecopy', false);
                                $pmdm->set('title', $subject);
                                $pmdm->set('message', $message);
                                $pmdm->set_recipients($vbulletin->options['ae_recipients'], $fromuser['permissions']);
                                $pmdm->set('dateline', TIMENOW);
                                $pmdm->save();
                            }
    
                            if($vbulletin->options['ae_startthread'] == '1' AND $vbulletin->options['ae_forumid'])
                            {
                                require_once(DIR . '/includes/class_dm_threadpost.php');
    
                                // setup variables
                                $forumid = $vbulletin->options['ae_forumid'];
                                $threaddm = new vB_DataManager_Thread_FirstPost($vbulletin, ERRTYPE_STANDARD);
                                    
                                // insert thread
                                $threaddm->do_set('forumid', $forumid);
                                $threaddm->do_set('userid', $fromuser['userid']);
                                $threaddm->do_set('username', $fromuser['username']);
                                $threaddm->do_set('pagetext', $message);
                                $threaddm->do_set('title', $subject);
                                $threaddm->do_set('allowsmilie', $allowsmilie);
                                $threaddm->do_set('visible', $visible);
                                $tid = $threaddm->save();
    
                                require_once(DIR . '/includes/functions_databuild.php');
                                build_forum_counters($forumid);
                            }
                        }
                    }
                }
                // ==================================================================