PHP: QR code generator

Описание

QR code (Quick Response Code) is the trademark for a type of matrix barcode.
PHP QRcode library can be downloaded:
http://phpqrcode.sourceforge.net/index.php
To use Qrcode library is quite simple, you just need to include "qrlib.php";
QRcode::png('code data text', 'filename.png') to create output file
QRcode::png('code data text') output code image directly to browser.
More about this video:
http://jiansenlu.blogspot.ca/2013/06/php-qr-code-generator.html