gistfile1.php

<?php

class OrderProcessedViewModel
{
    public $orderId;
    public $paymentDetails;
    public $shippingDetails;
    
    public static function createFromOrder(Order $order)
    {
        $orderProcessedViewModel = new OrderProcessedViewModel();
        
        $orderProcessedViewModel->orderId = $order->getOrderId();
        $orderProcessedViewModel->paymentDetails = new OrderPaymentConfirmation();
        $orderProcessedViewModel->shippingDetails = new OrderShippingConfirmation();
    }
}