Save profile and user data simultaneously

SaveProfilePlugin.php

<?php
namespace Craft;

class SaveProfilePlugin extends BasePlugin
{
    function getName()
    {
        return Craft::t('Save profile too when saving user');
    }
    
    function getVersion()
    {
        return '1.0';
    }
    
    function getDeveloper()
    {
        return 'Bob Olde Hampsink';
    }
    
    function getDeveloperUrl()
    {
        return 'http://www.itmundi.nl';
    }
    
    function init() {
    
        // Only works on the front-end
        if(craft()->request->isSiteRequest()) {
        
            // Only trigger when an user is saved
            craft()->on('users.onSaveUser', function(Event $event) {
                        
                // Get user 
                $user = $event->params['user'];
            
                // Set given fields on user
                $fields = craft()->request->getPost('fields');
                $user->getContent()->setAttributes($fields);
                
                // Save profile
                craft()->users->saveProfile($user);
                            
            });
        
        }
    
    }

}