php创建带logo二维码类

<?php /* * PHP QR Code encoder * * QR Code specifications * * Based on libqrencode C library distributed under LGPL 2.1 * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net> * * PHP QR Code is distributed under LGPL 3 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm> * * The following data / specifications are taken from * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004) * or * "Automatic identification and data capture techniques -- * QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006) * * 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 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 */ define('QRSPEC_VERSION_MAX', 40); define('QRSPEC_WIDTH_MAX', 177); define('QRCAP_WIDTH', 0); define('QRCAP_WORDS', 1); define('QRCAP_REMINDER', 2); define('QRCAP_EC', 3); class QRspec { public static $capacity = array( array( 0, 0, 0, array( 0, 0, 0, 0)), array( 21, 26, 0, array( 7, 10, 13, 17)), // 1 array( 25, 44, 7, array( 10, 16, 22, 28)), array( 29, 70, 7, array( 15, 26, 36, 44)), array( 33, 100, 7, array( 20, 36, 52, 64)), array( 37, 134, 7, array( 26, 48, 72, 88)), // 5 array( 41, 172, 7, array( 36, 64, 96, 112)), array( 45, 196, 0, array( 40, 72, 108, 130)), array( 49, 242, 0, array( 48, 88, 132, 156)), array( 53, 292, 0, array( 60, 110, 160, 192)), array( 57, 346, 0, array( 72, 130, 192, 224)), //10 array( 61, 404, 0, array( 80, 150, 224, 264)), array( 65, 466, 0, array( 96, 176, 260, 308)), array( 69, 532, 0, array( 104, 198, 288, 352)), array( 73, 581, 3, array( 120, 216, 320, 384)), array( 77, 655, 3, array( 132, 240, 360, 432)), //15 array( 81, 733, 3, array( 144, 280, 408, 480)), array( 85, 815, 3, array( 168, 308, 448, 532)), array( 89, 901, 3, array( 180, 338, 504, 588)), array( 93, 991, 3, array( 196, 364, 546, 650)), array( 97, 1085, 3, array( 224, 416, 600, 700)), //20 array(101, 1156, 4, array( 224, 442, 644, 750)), array(105, 1258, 4, array( 252, 476, 690, 816)), array(109, 1364, 4, array( 270, 504, 750, 900)), array(113, 1474, 4, array( 300, 560, 810, 960)), array(117, 1588, 4, array( 312, 588, 870, 1050)), //25 array(121, 1706, 4, array( 336, 644, 952, 1110)), array(125, 1828, 4, array( 360, 700, 1020, 1200)), array(129, 1921, 3, array( 390, 728, 1050, 1260)), array(133, 2051, 3, array( 420, 784, 1140, 1350)), array(137, 2185, 3, array( 450, 812, 1200, 1440)), //30 array(141, 2323, 3, array( 480, 868, 1290, 1530)), array(145, 2465, 3, array( 510, 924, 1350, 1620)), array(149, 2611, 3, array( 540, 980, 1440, 1710)), array(153, 2761, 3, array( 570, 1036, 1530, 1800)), array(157, 2876, 0, array( 570, 1064, 1590, 1890)), //35 array(161, 3034, 0, array( 600, 1120, 1680, 1980)), array(165, 3196, 0, array( 630, 1204, 1770, 2100)), array(169, 3362, 0, array( 660, 1260, 1860, 2220)), array(173, 3532, 0, array( 720, 1316, 1950, 2310)), array(177, 3706, 0, array( 750, 1372, 2040, 2430)) //40 ); //---------------------------------------------------------------------- public static function getDataLength($version, $level) { return self::$capacity[$version][QRCAP_WORDS] - self::$capacity[$version][QRCAP_EC][$level]; } //---------------------------------------------------------------------- public static function getECCLength($version, $level) { return self::$capacity[$version][QRCAP_EC][$level]; } //---------------------------------------------------------------------- public static function getWidth($version) { return self::$capacity[$version][QRCAP_WIDTH]; } //---------------------------------------------------------------------- public static function getRemainder($version) { return self::$capacity[$version][QRCAP_REMINDER]; } //---------------------------------------------------------------------- public static function getMinimumVersion($size, $level) { for($i=1; $i<= QRSPEC_VERSION_MAX; $i++) { $words = self::$capacity[$i][QRCAP_WORDS] - self::$capacity[$i][QRCAP_EC][$level]; if($words >= $size) return $i; } return -1; } //###################################################################### public static $lengthTableBits = array( array(10, 12, 14), array( 9, 11, 13), array( 8, 16, 16), array( 8, 10, 12) ); //---------------------------------------------------------------------- public static function lengthIndicator($mode, $version) { if ($mode == QR_MODE_STRUCTURE) return 0; if ($version <= 9) { $l = 0; } else if ($version <= 26) { $l = 1; } else { $l = 2; } return self::$lengthTableBits[$mode][$l]; } //---------------------------------------------------------------------- public static function maximumWords($mode, $version) { if($mode == QR_MODE_STRUCTURE) return 3; if($version <= 9) { $l = 0; } else if($version <= 26) { $l = 1; } else { $l = 2; } $bits = self::$lengthTableBits[$mode][$l]; $words = (1 << $bits) - 1; if($mode == QR_MODE_KANJI) { $words *= 2; // the number of bytes is required } return $words; } // Error correction code ----------------------------------------------- // Table of the error correction code (Reed-Solomon block) // See Table 12-16 (pp.30-36), JIS X0510:2004. public static $eccTable = array( array(array( 0, 0), array( 0, 0), array( 0, 0), array( 0, 0)), array(array( 1, 0), array( 1, 0), array( 1, 0), array( 1, 0)), // 1 array(array( 1, 0), array( 1, 0), array( 1, 0), array( 1, 0)), array(array( 1, 0), array( 1, 0), array( 2, 0), array( 2, 0)), array(array( 1, 0), array( 2, 0), array( 2, 0), array( 4, 0)), array(array(