Velociraptors!

gistfile1.aw

<?php

// ... <inside a large payment processing function, where velociraptors can be heard> ...

	$form = $this->getForm($formName);
	foreach ((array) $errors as $errNo => $error)
	{
		switch ($errNo)
		{
			case "0" : // Transaction Successful
				continue;

			case "4" : $result = "Expired Card";
				$form->getElement('expDateMonth')->addError('Expired Card or Invalid expiry date');
				$form->getElement('expDateYear')->addError('Expired Card or Invalid expiry date');
				continue;

			case "U" : $result = "Card Security Code Failed"; goto addCSCError; break;
			case "V" : $result = "Address Verification and Card Security Code Failed"; goto addCSCError; break;

			case "?" : $result = "Transaction status is unknown"; goto addError; break;
			case "1" : $result = "Unknown Error"; goto addError; break;
			case "2" : $result = "Bank Declined Transaction"; goto addError; break;
			case "3" : $result = "No Reply from Bank"; goto addError; break;
			case "5" : $result = "Insufficient funds"; goto addError; break;
			case "6" : $result = "Error Communicating with Bank"; goto addError; break;
			case "7" : $result = "Payment Server System Error"; goto addError; break;
			case "8" : $result = "Transaction Type Not Supported"; goto addError; break;
			case "9" : $result = "Bank declined transaction (Do not contact Bank)"; goto addError; break;
			case "A" : $result = "Transaction Aborted"; goto addError; break;
			case "C" : $result = "Transaction Cancelled"; goto addError; break;
			case "D" : $result = "Deferred transaction has been received and is awaiting processing"; goto addError; break;
			case "F" : $result = "3D Secure Authentication failed"; goto addError; break;
			case "I" : $result = "Card Security Code verification failed"; goto addError; break;
			case "L" : $result = "Shopping Transaction Locked (Please try the transaction again later)"; goto addError; break;
			case "N" : $result = "Cardholder is not enrolled in Authentication scheme"; goto addError; break;
			case "P" : $result = "Transaction has been received by the Payment Adaptor and is being processed"; goto addError; break;
			case "R" : $result = "Transaction was not processed - Reached limit of retry attempts allowed"; goto addError; break;
			case "S" : $result = "Duplicate SessionID (OrderInfo)"; goto addError; break;
			case "T" : $result = "Address Verification Failed"; goto addError; break;

			default: $result = "An unknown error has occurred."; goto addError;
		}

		continue;

		addError:
			$form->getElement('ccNumber')->addError($result);
			continue;

		addCSCError:
			$form->getElement('securityNumber')->addError($result);
			continue;
	}

ah, payment processing. They are the curse (or one of them) of web developers

Yeah, unfortunately this system is not a candidate for refactoring either. The whole payment module is riddled with issues. :(