PHP QR Code 是 PHP 用来处理二维条形码的开发包。基于 C 语言的 libqrencode 库开发，提供生成二维条形码功能，包括 PNG、JPG 格式。使用纯 PHP 实现，无需依赖第三方包，除了 GD2 除外。
主要特性：
Supports QR Code versions (size) 1-40
Numeric, Alphanumeric, 8-bit and Kanji encoding. (Kanji encoding was not fully tested, if you are japan-encoding enabled you cen contribute by verifing it :) )
Implemented purely in PHP, no external dependencies except GD2
Exports to PNG, JPEG images, also exports as bit-table
TCPDF 2-D barcode API integration
Easy to configure
Data cache for calculation speed-up
Provided merge tool helps deploy library as a one big dependency-less file, simple to "include and do not wory"
Debug data dump, error logging, time benchmarking
100% Open Source, LGPL Licensed
项目主页：http://sourceforge.net/projects/phpqrcode/
下载地址：http://sourceforge.net/projects/phpqrcode/files/
来自:开源中国社区
