PHP sample of the “pay Now” button in sandbox mode
<script src="https://code.jquery.com/jquery-1.11.0.min.js"></script>
</head>
<body>
<div id="message" style="background-color:#e5e5e5"></div>
<button api_login_id=<?php echo $APILoginID;?>
version_number=<?php echo $version;?>
total_amount=<?php echo $totalamount;?>
utc_time=<?php echo $utc;?>
order_number=<?php echo $ordernumber;?>
method=<?php echo $method;?>
<?php
$data = "$APILoginID|$method|$version|$totalamount|$utc|$ordernumber||";
$hash = hash_hmac('md5',$data,$SecureTransactionKey);
?>
signature=<?php echo $hash;?>
>Pay Now</button>
</body>
</html>
Notice that I have masked the transaction key since it’s consider sensitive information.