• Within your /xampp/htdocs
directory run git clone https://github.com/ikechukwukalu/instantpay-php-integration.git
• Add your merchant code to this form input<input type="hidden" class="form-control" id="merchantID" name="merchantID" value="NG0000000" required>
echo hash_hmac(
'sha512',
$_POST['hash'],
'' //Add Secret Key
);
$url = "https://ng.instantbillspay.com/instantpay/api/bill/refstatus?ref=" . $_GET['Ref'];