git clone https://github.com/MicheleDeF/QRCode.git
cd QRCode
composer dump-autoload
composer run start-example
composer require micheledef/qr-code-php
<?php
require 'vendor/autoload.php';
use Micheledef\QrCodePhp\QRCode;
$qr = new QRCode();
$code = "Hello World";
$qrGet = $qr->getQrCode($code, 177, 177, "UTF-8", "H");
$qrPost = $qr->postQrCode($code, 177, 177, "UTF-8", "H");
?>
<!-- QR code generated with GET request -->
<img src="<?=$qrGet;?>" />
<!-- QR code generated with POST request-->
<img src="<?=$qrPost?>" />