Answered getService for creating new users?

<?php

//$parent = '75';
$parent = '39';
$c = $modx->newQuery('modResource');
$c->where(array('parent' => $parent));

if ($collection = $modx->getCollection('modResource', $c)) {
    foreach ($collection as $resource) {
        $data = array();
        $data['username'] = $resource->getTVValue('user_name');
        $data['email'] = $resource->getTVValue('arzt-email');
        $data['fullname'] = $resource->get('pagetitle');
        $data['passwordnotifymethod'] = 'e';
        $data['active'] = '1';
        $data['userpage_id'] = $resource->get('id');
        $data['mailTpl'] = 'newUserMail';
        $group = array();
        $group['usergroup'] = '3';
        $group['role'] = '5';
        $data['groups'] = array();
        $data['groups'][] = $group;

        //echo $data['fullname'];

        if ($user = $modx->getObject('modUser', array('username' => $data['username']))) {
            //user exists allready
        } else {
            $response = $modx->runProcessor('security/user/create_custom', $data);

            if ($response->isError()) {
                //$updateerror = true;
                //echo $errormsg = $response->getMessage();
                //echo 'error';
            }
            if ($object = $response->getObject()) {
                $userid = $modx->getOption('id', $object, '');
                $resource->setTVValue('user_id', $userid);
            }
        }
    }
}