<?php require_once ('jpgraph/QR/qrencoder.inc.php'); // Data to be encoded $data = '01234567'; // Create a new instance of the encoder and let the library // decide a suitable QR version and error level $encoder = new QREncoder(); // Use the image backend $backend = QRCodeBackendFactory::Create($encoder, BACKEND_IMAGE); // Set the module size (quite big) $backend->SetModuleWidth(5); // .. send the barcode back to the browser for the data $backend->Stroke($data); ?>