<?php namespace Papper\Examples\Validation; use Papper\Papper; require_once __DIR__ . '/../vendor/autoload.php'; class User { public $name; } class UserDTO { public $name; public $unmappedProperty; } Papper::createMap('Papper\\Examples\\Validation\\User', 'Papper\\Examples\\Validation\\UserDTO'); Papper::validate();