This is a refactored PHP implementation of phpqrcode i.e. QR Code 2-D barcode generator. It is pure-php LGPL-licensed implementation based on C libqrencode by Kentaro Fukuchi.
This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or any later version.
This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License (LICENSE file) for more details.
You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Class files are named for classes to make auto-loading simpler.
Just call the QRcode satic method like so:
QRcode::png('PHP QR Code');
Based on phpqrcode library Copyright (C) 2010-2013 by Dominik Dzienia
Which was based on C libqrencode library (ver. 3.1.1) Copyright (C) 2006-2010 by Kentaro Fukuchi http://megaui.net/fukuchi/works/qrencode/index.en.html
QR Code is registered trademarks of DENSO WAVE INCORPORATED in JAPAN and other countries.
Reed-Solomon code encoder is written by Phil Karn, KA9Q. Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q