This code sample is provided by Plimus for guidance and assistance only. We suggest that you test it carefully. Vendor support is not currently able to provide assistance in using or implementing this code.

<?php
/*IPN Sample code
=================
This code gets all the parameters of "IPN", checks if the request came from a plimus server (by IP) and sends the data to the system log.
Revision: 1.0.4 | 05/25/2009
*/
$plimusIps = array("62.219.121.253", "209.128.93.248", "72.20.107.242", "209.128.93.229", "209.128.93.98", "209.128.93.230", "209.128.93.245", "209.128.93.104", "209.128.93.105", "209.128.93.107", "209.128.93.108", "209.128.93.242", "209.128.93.243", "209.128.93.254", "62.216.234.216", "62.216.234.218", "62.216.234.219", "62.216.234.220", "127.0.0.1","localhost", "209.128.104.18", "209.128.104.19", "209.128.104.20", "209.128.104.21", "209.128.104.22", "209.128.104.23", "209.128.104.24", "209.128.104.25", "209.128.104.26", "209.128.104.27", "209.128.104.28", "209.128.104.29", "209.128.104.30", "209.128.104.31", "209.128.104.32", "209.128.104.33", "209.128.104.34", "209.128.104.35", "209.128.104.36", "209.128.104.37", "99.186.243.9", "99.186.243.10", "99.186.243.11", "99.186.243.12", "99.186.243.13", "99.180.227.233", "99.180.227.234", "99.180.227.235", "99.180.227.236", "99.180.227.237");

//Check if the request came from Plimus IP
if (array_search($_SERVER['REMOTE_ADDR'], $plimusIps) == false) {
exit($_SERVER['REMOTE_ADDR'] . " is not a plimus server!!!");
}
//Put IPN Parameters in local varibales
$transactionType = $_REQUEST['transactionType'];
$testMode = $_REQUEST['testMode'];
$referenceNumber = $_REQUEST['referenceNumber'];
$originalReferenceNumber = $_REQUEST['originalReferenceNumber'];
$paymentMethod = $_REQUEST['paymentMethod'];
$creditCardType = $_REQUEST['creditCardType'];
$transactionDate = $_REQUEST['transactionDate'];
$untilDate = $_REQUEST['untilDate'];
$productId = $_REQUEST['productId'];
$productName = $_REQUEST['productName'];
$contractId = $_REQUEST['contractId'];
$contractName = $_REQUEST['contractName'];
$contractOwner = $_REQUEST['contractOwner'];
$contractPrice = $_REQUEST['contractPrice'];
$quantity = $_REQUEST['quantity'];
$currency = $_REQUEST['currency'];
$addCD = $_REQUEST['addCD'];
$coupon = $_REQUEST['coupon'];
$couponValue = $_REQUEST['couponValue'];
$referrer = $_REQUEST['referrer'];
$accountId = $_REQUEST['accountId'];
$title = $_REQUEST['title'];
$firstName = $_REQUEST['firstName'];
$lastName = $_REQUEST['lastName'];
$company = $_REQUEST['company'];
$address1 = $_REQUEST['address1'];
$address2 = $_REQUEST['address2'];
$city = $_REQUEST['city'];
$state = $_REQUEST['state'];
$country = $_REQUEST['country'];
$zipCode = $_REQUEST['zipCode'];
$email = $_REQUEST['email'];
$workPhone = $_REQUEST['workPhone'];
$extension = $_REQUEST['extension'];
$mobilePhone = $_REQUEST['mobilePhone'];
$homePhone = $_REQUEST['homePhone'];
$faxNumber = $_REQUEST['faxNumber'];
$licenseKey = $_REQUEST['licenseKey'];
$shippingFirstName = $_REQUEST['shippingFirstName'];
$shippingLastName = $_REQUEST['shippingLastName'];
$shippingAddress1 = $_REQUEST['shippingAddress1'];
$shippingAddress2 = $_REQUEST['shippingAddress2'];
$shippingCity = $_REQUEST['shippingCity'];
$shippingState = $_REQUEST['shippingState'];
$shippingCountry = $_REQUEST['shippingCountry'];
$shippingZipCode = $_REQUEST['shippingZipCode'];
$remoteAddress = $_REQUEST['remoteAddress'];
$shippingMethod = $_REQUEST['shippingMethod'];
$couponCode = $_REQUEST['couponCode'];
$invoiceAmount = $_REQUEST['invoiceAmount'];
$invoiceInfoURL = $_REQUEST['invoiceInfoURL'];

//Put IPN Promotions Parameters in local arrays
$promoteContractsNum = $_REQUEST['promoteContractsNum'];
for ($i=0; $i<$promoteContractsNum; $i++)
{
$promoteContracts[$i]['promoteContractId']= $_REQUEST["promoteContractId$i"];
$promoteContracts[$i]['promoteContractName'] = $_REQUEST["promoteContractName$i"];
$promoteContracts[$i]['promoteContractOwner'] = $_REQUEST["promoteContractOwner$i"];
$promoteContracts[$i]['promoteContractPrice'] = $_REQUEST["promoteContractPrice$i"];
$promoteContracts[$i]['promoteContractQuantity'] = $_REQUEST["promoteContractQuantity$i"];
$promoteContracts[$i]['promoteContractLicenseKey'] = $_REQUEST["promoteContractLicenseKey$i"];
}

//Add all parameters to a string
$now = date('m/d/Y H:i:s');

$txt = <<<ENDOFTEXT
<<<================= $now - Plimus Order #$referenceNumber ==================>>>
transactionType: $transactionType
testMode: $testMode
referenceNumber: $referenceNumber
originalReferenceNumber: $originalReferenceNumber
paymentMethod: $paymentMethod
creditCardType: $creditCardType
transactionDate: $transactionDate
untilDate: $untilDate
productId: $productId
productName: $productName
contractId: $contractId
contractName: $contractName
contractOwner: $contractOwner
contractPrice: $contractPrice
quantity: $quantity
currency: $currency
addCD: $addCD
coupon: $coupon
couponValue: $couponValue
referrer: $referrer
promoteContractsNum: $promoteContractsNum
accountId: $accountId
title: $title
firstName: $firstName
lastName: $lastName
company: $company
address1: $address1
address2: $address2
city: $city
state: $state
country: $country
zipCode: $zipCode
email: $email
workPhone: $workPhone
extension: $extension
mobilePhone: $mobilePhone
homePhone: $homePhone
faxNumber: $faxNumber
licenseKey: $licenseKey
shippingFirstName: $shippingFirstName
shippingLastName: $shippingLastName
shippingAddress1: $shippingAddress1
shippingAddress2: $shippingAddress2
shippingCity: $shippingCity
shippingState: $shippingState
shippingCountry: $shippingCountry
shippingZipCode: $shippingZipCode
remoteAddress: $remoteAddress
shippingMethod: $shippingMethod
couponCode: $couponCode
invoiceAmount: $invoiceAmount
invoiceInfoURL: $invoiceInfoURL
ENDOFTEXT;

//Add Promotions Text to string
for ($i=0; $i<$promoteContractsNum; $i++)
{
$promotion = $promoteContracts[$i];
$txt .= "\r\n +promotion $i: ";
$txt .= "\r\n promoteContractId $i:" . $promoteContracts[$i]['promoteContractId'];
$txt .= "\r\n promoteContractName $i:" . $promoteContracts[$i]['promoteContractName'];
$txt .= "\r\n promoteContractOwner $i:" . $promoteContracts[$i]['promoteContractOwner'];
$txt .= "\r\n promoteContractPrice $i:" . $promoteContracts[$i]['promoteContractPrice'];
$txt .= "\r\n promoteContractQuantity $i:" . $promoteContracts[$i]['promoteContractQuantity'];
$txt .= "\r\n promoteContractLicenseKey $i:" . $promoteContracts[$i]['promoteContractLicenseKey'];
}

$txt .= "\r\n<<<================= End Of Plimus Order #$referenceNumber ==================>>> \r\n";

//Print IPN Parameters to File Named "plimus.txt"
$file = 'Plimus_IPN.log';
// Open the file to get existing content
$current = file_get_contents($file);
// Append a new person to the file
$current .= $txt;
// Write the contents back to the file
file_put_contents($file, $current);

echo($txt);
?>