Get real order id from order increment id in magento
This issue comes when you have only the order increment id ( ex: 10000123 ) and nothing else,but you need to fetch all the products from that order.
This is a very simple task
Use this code and the real order id will be stored in $orderId variable:
$orderId = Mage::getModel('sales/order')
->loadByIncrementId($orderIncrementId)
->getEntityId();
…first time posted on w3bdeveloper.com