<?php
require_once('jpgraph/QR/qrencoder.inc.php');

// Data to be encoded
$data         = 'ABCDEFGH01234567';

// QR Code specification
$version        = -1;                // -1 = Let the library decide version (same as default)
$corrlevel      = QRCapacity::ErrM;   // Medium erro correction
$modulewidth    = 2;                    // Module width
$back           = BACKEND_IMAGE;        // Default backend
$quiet          = 4;                    // Same as default value

// Create encoder and backend
$encoder = new QREncoder($version, $corrlevel);
$backend = QRCodeBackendFactory::Create($encoder, $back);

// Set the module size
$backend->SetModuleWidth($modulewidth);

// Set Quiet zone (this should rarely need changing from the default)
$backend->SetQuietZone($quiet);

if ($back == BACKEND_IMAGE) {
    $backend->Stroke($data);
} else {
    $str = $backend->Stroke($data);
    echo '<pre>'.$str.'</pre>';
}
