$userNameDefenition = array('index'=>'userName', 'method'=>'validate', 'options'=>array('regex'=>'/\w{3,25}/'));

$userPassDefintion = array('index'=>'userPass', 'method'=>'validate', 'options'=>array('min_len'=>8, 'max_len'=>50));

addUser(userBundle($userNameDefinition, $userPassDefinition));


function userBundle($userNameDefinition, $userPassDefinition)
{
	return new FormBundle('UserName'=>$userName, 'UserPass'=>$userPass);
}

function addUser(FormBundle $userBundle)
{
	$userName = $userBundle>safeUserName();
	$userPass = $userBundle>safeUserPass();
	//insert record in database
}