alertpay ipn help

[darkfreaks]

i need help understanding how to intergrate alertpay IPN payments into my website.

 

alert pay example handler:

<?php

/**

* 

* Sample IPN Handler for Item Payments

* 

* The purpose of this code is to help you to understand how to process the Instant Payment Notification 

* variables for a payment received through AlertPay's buttons and integrate it in your PHP site. The following

* code will ONLY handle ITEM payments. For handling IPNs for SUBSCRIPTIONS, please refer to the appropriate

* sample code file.

*	

* Put this code into the page which you have specified as Alert URL.

* The variables being read from the $_POST object in the code below are pre-defined IPN variables and the

* the conditional blocks provide you the logical placeholders to process the IPN variables. It is your responsibility

* to write appropriate code as per your requirements.

*	

* If you have any questions about this script or any suggestions, please visit us at: dev.alertpay.com

* 

*

* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY

* OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT

* LIMITED TO THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE.

* 

* @author AlertPay

* @copyright 2010

*/



//The value is the Security Code generated from the IPN section of your AlertPay account. Please change it to yours.

define("IPN_SECURITY_CODE", "xxxxxxxxxxxxxxxx");

define("MY_MERCHANT_EMAIL", "[email protected]");



//Setting information about the transaction

$receivedSecurityCode = urldecode($_POST['ap_securitycode']);

$receivedMerchantEmailAddress = urldecode($_POST['ap_merchant']);	

$transactionStatus = urldecode($_POST['ap_status']);

$testModeStatus = urldecode($_POST['ap_test']);	 

$purchaseType = urldecode($_POST['ap_purchasetype']);

$totalAmountReceived = urldecode($_POST['ap_totalamount']);

$feeAmount = urldecode($_POST['ap_feeamount']);

    $netAmount = urldecode($_POST['ap_netamount']);

$transactionReferenceNumber = urldecode($_POST['ap_referencenumber']);

$currency = urldecode($_POST['ap_currency']); 	

$transactionDate= urldecode($_POST['ap_transactiondate']);

$transactionType= urldecode($_POST['ap_transactiontype']);



//Setting the customer's information from the IPN post variables

$customerFirstName = urldecode($_POST['ap_custfirstname']);

$customerLastName = urldecode($_POST['ap_custlastname']);

$customerAddress = urldecode($_POST['ap_custaddress']);

$customerCity = urldecode($_POST['ap_custcity']);

$customerState = urldecode($_POST['ap_custstate']);

$customerCountry = urldecode($_POST['ap_custcountry']);

$customerZipCode = urldecode($_POST['ap_custzip']);

$customerEmailAddress = urldecode($_POST['ap_custemailaddress']);



//Setting information about the purchased item from the IPN post variables

$myItemName = urldecode($_POST['ap_itemname']);

$myItemCode = urldecode($_POST['ap_itemcode']);

$myItemDescription = urldecode($_POST['ap_description']);

$myItemQuantity = urldecode($_POST['ap_quantity']);

$myItemAmount = urldecode($_POST['ap_amount']);



//Setting extra information about the purchased item from the IPN post variables

$additionalCharges = urldecode($_POST['ap_additionalcharges']);

$shippingCharges = urldecode($_POST['ap_shippingcharges']);

$taxAmount = urldecode($_POST['ap_taxamount']);

$discountAmount = urldecode($_POST['ap_discountamount']);



//Setting your customs fields received from the IPN post variables

$myCustomField_1 = urldecode($_POST['apc_1']);

$myCustomField_2 = urldecode($_POST['apc_2']);

$myCustomField_3 = urldecode($_POST['apc_3']);

$myCustomField_4 = urldecode($_POST['apc_4']);

$myCustomField_5 = urldecode($_POST['apc_5']);

$myCustomField_6 = urldecode($_POST['apc_6']);



if ($receivedMerchantEmailAddress != MY_MERCHANT_EMAIL) {

	// The data was not meant for the business profile under this email address.

	// Take appropriate action 

}

else {	

	//Check if the security code matches

	if ($receivedSecurityCode != IPN_SECURITY_CODE) {

		// The data is NOT sent by AlertPay.

		// Take appropriate action.

	}

	else {

		if ($transactionStatus == "Success") {

			if ($testModeStatus == "1") {

				// Since Test Mode is ON, no transaction reference number will be returned.

				// Your site is currently being integrated with AlertPay IPN for TESTING PURPOSES

				// ONLY. Don't store any information in your production database and 

				// DO NOT process this transaction as a real order.

			}

			else {

				// This REAL transaction is complete and the amount was paid successfully.

				// Process the order here by cross referencing the received data with your database. 														

				// Check that the total amount paid was the expected amount.

				// Check that the amount paid was for the correct service.

				// Check that the currency is correct.

				// ie: if ($totalAmountReceived == 50) ... etc ...

				// After verification, update your database accordingly.

			}			

		}

		else {

				// Transaction was cancelled or an incorrect status was returned.

				// Take appropriate action.

		}

	}

}

?>

 

i have several  buy now buttons for alertpay but i would rather make this a PHP script rather than a buy now button.