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1 <?php
2
3 /*
4 * PHP QR Code encoder
5 *
6 * Common constants
7 *
8 * Based on libqrencode C library distributed under LGPL 2.1
9 * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
10 *
11 * PHP QR Code is distributed under LGPL 3
12 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
13 *
14 * This library is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU Lesser General Public
16 * License as published by the Free Software Foundation; either
17 * version 3 of the License, or any later version.
18 *
19 * This library is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 * Lesser General Public License for more details.
23 *
24 * You should have received a copy of the GNU Lesser General Public
25 * License along with this library; if not, write to the Free Software
26 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
27 */
28
29 // Encoding modes
30
31 define('QR_MODE_NUL', -1);
32 define('QR_MODE_NUM', 0);
33 define('QR_MODE_AN', 1);
34 define('QR_MODE_8', 2);
35 define('QR_MODE_KANJI', 3);
36 define('QR_MODE_STRUCTURE', 4);
37
38 // Levels of error correction.
39
40 define('QR_ECLEVEL_L', 0);
41 define('QR_ECLEVEL_M', 1);
42 define('QR_ECLEVEL_Q', 2);
43 define('QR_ECLEVEL_H', 3);
44
45 // Supported output formats
46
47 define('QR_FORMAT_TEXT', 0);
48 define('QR_FORMAT_PNG', 1);
49
50 class qrstr {
51 public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
52 $srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
53 }
54 }