phpqrcode.php
下载地址：https://sourceforge.net/projects/phpqrcode/
//测试可行 utf-8格式
<?php
header("Content-type: text/html; charset=utf-8");
include ‘phpqrcode.php‘; //引入phpqrcode.php
//支持中文
$value = "内容";
//$value="http://www.weste.net";
$errorCorrectionLevel = "L";
$matrixPointSize = "4";
QRcode::png($value, false, $errorCorrectionLevel, $matrixPointSize);
exit;
原文：http://www.cnblogs.com/fan-bk/p/7701105.html