MODX Manager IP Log - Log a managers IP when they login

CommentMangerIP.plugin.php

<?php
switch ($modx->event->name) {
    case 'OnManagerLogin':
        $userinfo =& $modx->event->params['user'];
        if(!empty($userinfo)){
            $ip = getenv('HTTP_CLIENT_IP')?:
            getenv('HTTP_X_FORWARDED_FOR')?:
            getenv('HTTP_X_FORWARDED')?:
            getenv('HTTP_FORWARDED_FOR')?:
            getenv('HTTP_FORWARDED')?:
            getenv('REMOTE_ADDR');
            $profile = $userinfo->getOne('Profile');
            $comment = $profile->get('comment');
            
            if (strpos($comment, $ip) === false) {
                $comment .= $ip."\r\n";
            }
            $profile->set('comment',$comment);
            if(!$profile->save()){
                $modx->log(xPDO::LOG_LEVEL_ERROR, 'Could not save user '.$userinfo->get('username').'  with IP '.$ip.'!' );
            }else{
                $log = $modx->newObject('modManagerLog');
                $log->fromArray(array('user'=>$userinfo->get('id'),
                    'occurred' => date('Y-m-d H:i:s'),
                    'action' => 'ip_logged',
                    'classKey' => 'modContext',
                    'item' => $ip
                ));
                $log->save();
            }
        }else{
            $modx->log(xPDO::LOG_LEVEL_ERROR, 'User not found!' );
        }       
        break;
}