<?php
header("Pragma: no-cache");
header("Cache-Control: no-cache");
header("Expires: 0");
// following files need to be included
require_once((_env('PAYTM_LIBRARY', '')).'config_paytm.php');
require_once((_env('PAYTM_LIBRARY', '')).'encdec_paytm.php');
$checkSum = "";
$paramList = array();

//$ORDER_ID = "fsdfsdfsdfgdfgddfdgdsfsdfsdf";
//$CUST_ID = "dsdfssdsdfsdfsdfsdf";
$INDUSTRY_TYPE_ID = "Retail";
$CHANNEL_ID = "WEB";
//$TXN_AMOUNT = 100;

// Create an array having all required parameters for creating checksum.
$paramList["MID"] = PAYTM_MERCHANT_MID;
$paramList["ORDER_ID"] = $ORDER_ID;
$paramList["CUST_ID"] = $CUST_ID;
$paramList["INDUSTRY_TYPE_ID"] = "Retail";
$paramList["CHANNEL_ID"] = "WEB";
$paramList["TXN_AMOUNT"] = $TXN_AMOUNT;
$paramList["WEBSITE"] = PAYTM_MERCHANT_WEBSITE;
$paramList["CALLBACK_URL"] = asset("payment_response?_token=".csrf_token());
$paramList["MERC_UNQ_REF"] = $MERC_UNQ_REF; // Merchant Unique Reference id

$paramList["MSISDN"] = $MSISDN; //Mobile number of customer
$paramList["EMAIL"] = $EMAIL; //Email ID of customer
/*$paramList["VERIFIED_BY"] = "EMAIL"; //
$paramList["IS_USER_VERIFIED"] = "YES"; //

*/

//Here checksum string will return by getChecksumFromArray() function.
$checkSum = getChecksumFromArray($paramList,PAYTM_MERCHANT_KEY);

?>
<html>
<head>
    <title>Merchant Check Out Page</title>
</head>
<body>
<center><h1>Please do not refresh this page...</h1></center>
<form method="post" action="<?php echo PAYTM_TXN_URL ?>" name="f1">
    <table border="1">
        <tbody>
        <?php
        foreach($paramList as $name => $value) {
            echo '<input type="hidden" name="' . $name .'" value="' . $value . '">';
        }
        ?>
        <input type="hidden" name="CHECKSUMHASH" value="<?php echo $checkSum ?>">
        </tbody>
    </table>
    <script type="text/javascript">
        document.f1.submit();
    </script>
</form>
</body>
</html>