love/public/qrcode.php

<?php
// +----------------------------------------------------------------------
// | Ceeen Wise System
// +----------------------------------------------------------------------
// | Copyright (c) 2007-2017 http://www.sharpwe.com All rights reserved.
// +----------------------------------------------------------------------
// | Date: 2017/7/28 Time: 2:02
// +----------------------------------------------------------------------
// | Author: fely <fely@fely.cc> 
// +----------------------------------------------------------------------

error_reporting(E_ALL || ~E_NOTICE);

include('../extend/util/phpqrcode/qrlib.php');


if (!array_key_exists('code', $_GET)) {
    exit();
}

$code = $_GET['code'];
QRcode::png($code);