Invoice ID Not Found

[Aeterno]

HELP I coded a gateway module but now I need to make a callback file as I don't really feel like manually accepting my clients orders and would really love some help Below is my callback file:

 

<?php
/**
* WHMCS Sample Payment Callback File
*
* This sample file demonstrates how a payment gateway callback should be
* handled within WHMCS.
*
* It demonstrates verifying that the payment gateway module is active,
* validating an Invoice ID, checking for the existence of a Transaction ID,
* Logging the Transaction for debugging and Adding Payment to an Invoice.
*
* For more information, please refer to the online documentation.
*
* @see https://developers.whmcs.com/payment-gateways/callbacks/
*
* @copyright Copyright (c) WHMCS Limited 2017
* @license http://www.whmcs.com/license/ WHMCS Eula
*/

// Require libraries needed for gateway module functions.
require_once __DIR__ . '/../../../init.php';
require_once __DIR__ . '/../../../includes/gatewayfunctions.php';
require_once __DIR__ . '/../../../includes/invoicefunctions.php';

// Detect module name from filename.
$gatewayModuleName = basename(__FILE__, '.php');

// Fetch gateway configuration parameters.
$gatewayParams = getGatewayVariables($gatewayModuleName);

// Die if module is not active.
if (!$gatewayParams['type']) {
   die("Module Not Activated");
}

// Retrieve data returned in payment gateway callback
// Varies per payment gateway
$invoiceId = $_REQUEST['invoiceid'];
$TRANSIDMERCHANT = $_POST['TRANSIDMERCHANT'];
$STATUSTYPE = $_POST["STATUSTYPE"];
$APPROVALCODE = $_POST["APPROVALCODE"];
$transactionId = $_POST["TRANSIDMERCHANT"];
$paymentAmount = $_POST["AMOUNT"];
$PAYMENTCODE = $_POST["PAYMENTCODE"];
$SESSIONID = $_POST["SESSIONID"];
$BANK = $_POST["BANK"];
$MCN = $_POST["MCN"];
$MTIME = date("YmdHms");
$PAYMENTDATETIME = $_POST['PAYMENTDATETIME'];
$VERIFYID = $_POST["VERIFYID"];
$VERIFYSCORE = $_POST["VERIFYSCORE"];
$VERIFYSTATUS = $_POST["VERIFYSTATUS"];
$CURRENCY = '360';
$PURCHASECURRENCY = '360';
$BRAND = $_POST["BRAND"];
$CHNAME = $_POST["CHNAME"];
$THREEDSECURESTATUS = $_POST["THREEDSECURESTATUS"];
$EDUSTATUS = 'NA';
$WORDS = $_POST['WORDS'];
$TRANSIDMERCHANT = $_POST['TRANSIDMERCHANT'];
$RESULTMSG = $_POST['RESULTMSG'];

$transactionStatus = $success ? 'Success' : 'Failure';

/**
* Validate callback authenticity.
*
* Most payment gateways provide a method of verifying that a callback
* originated from them. In the case of our example here, this is achieved by
* way of a shared secret which is used to build and compare a hash.
*/
$SHARED_KEY = $gatewayParams['SHARED_KEY'];
$MALLID = $gatewayParams['MALLID'];


if ($hash != md5($SHARED_KEY . $MALLID . $paymentAmount . $secretKey)) {
   $transactionStatus = 'Hash Verification Failure';
   $success = false;
}

/**
* Validate Callback Invoice ID.
*
* Checks invoice ID is a valid invoice number. Note it will count an
* invoice in any status as valid.
*
* Performs a die upon encountering an invalid Invoice ID.
*
* Returns a normalised invoice ID.
*
* @param int $invoiceId Invoice ID
* @param string $gatewayName Gateway Name
*/
//$invoiceId = $_POST['']
$invoiceId = checkCbInvoiceID($invoiceid, $gatewayParams['name']);

/**
* Check Callback Transaction ID.
*
* Performs a check for any existing transactions with the same given
* transaction number.
*
* Performs a die upon encountering a duplicate.
*
* @param string $transactionId Unique Transaction ID
*/
checkCbTransID($transactionId);

/**
* Log Transaction.
*
* Add an entry to the Gateway Log for debugging purposes.
*
* The debug data can be a string or an array. In the case of an
* array it will be
*
* @param string $gatewayName        Display label
* @param string|array $debugData    Data to log
* @param string $transactionStatus  Status
*/
logTransaction($gatewayParams['name'], $_POST, $transactionStatus);

if ($success) {

   /**
    * Add Invoice Payment.
    *
    * Applies a payment transaction entry to the given invoice ID.
    *
    * @param int $invoiceId         Invoice ID
    * @param string $transactionId  Transaction ID
    * @param float $paymentAmount   Amount paid (defaults to full balance)
    * @param float $paymentFee      Payment fee (optional)
    * @param string $gatewayModule  Gateway module name
    */
   addInvoicePayment(
       $invoiceId,
       $transactionId,
       $paymentAmount,
       $paymentFee,
       $gatewayModuleName
   );

}

 

Now here is the data my gateway sends to my server on the billing log:

 

PAYMENTDATETIME => 20170821115510
PURCHASECURRENCY => 360
LIABILITY => MERCHANT
PAYMENTCHANNEL => 15
AMOUNT => 5000000.00
MCN => 411111******1111
WORDS => faa7f1ab7a7c26e7b8fb5181a682c04f9d61c280
RESULTMSG => SUCCESS
TRANSIDMERCHANT => d36c2cb81590da675450721952c6a9aee0b759d8
BANK => Bank Mandiri
STATUSTYPE => P
APPROVALCODE => 499010
EDUSTATUS => NA
THREEDSECURESTATUS => FALSE
VERIFYSCORE => -1
CURRENCY => 360
RESPONSECODE => 0000
CHNAME => Mountain Vibe
BRAND => VISA
VERIFYSTATUS => NA
SESSIONID => 0af7d79e7aa47a8a0ee67961e3d4ccb8

[Aeterno]

Any help from forum member for this issue ?