Try entering the code,
<?php
$order=Mage::getModel('sales/order')->loadByIncrementId($this->getOrderId());
$ordered_items = $order->getAllItems();
foreach($ordered_items as $item){
echo $item->getSku();
echo "<br />";
echo $item->getQtyOrdered();
echo "<br />";
echo $item->getName();
echo "<br />";
}
?>
To get the total order quantity, use the code below.
$order->getData('total_qty_ordered');
source
share