Master card qr code is not recognized

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PHP

QRCode

Hi Team

I am testing qr code using php library with master qr code, but some strange reason the banking app is not recognized master card qr code. What do i need to improve my logic for the banking app when scanning to pay recognizes?

What I have tried:

<pre><?php
require "vendor/autoload.php";

use Endroid\QrCode\QrCode;
use Endroid\QrCode\ErrorCorrectionLevel;
use Endroid\MastercardQR\MastercardQRCode;

// Define the payment data
$paymentData = [
    "merchant" => "****",
    "amount" => 100.00, // Payment amount
    "currency" => "USD", // Payment currency
    "reference" => "123456789" // Payment reference
];

// Generate the Mastercard QR code payload
$payload = "MC" . json_encode($paymentData);

// Create the QR code
$qrCode = new QrCode($payload);

// Set QR code options
$qrCode->setSize(300); // Set the size of the QR code
$qrCode->setErrorCorrectionLevel(ErrorCorrectionLevel::LOW); // Set error correction level
//$qrCode->setEncoding(new Encoding('UTF-8')); // Set encoding

// Save the QR code as a PNG image
$qrCode->writeFile('C:/wamp64/www/eCommerce/eshopper/eshopper-1.0.0/img/qrcode.png');

// Output the QR code image
header("Content-Type: image/png");
echo $qrCode->writeString();
exit();

echo "QR code generated successfully!";
?>