PHP生成二维码案例

    index.php文件

    <?php
    include "phpqrcode.php";
    $value=$_GET[con];
    $errorCorrectionLevel = "L";
    $matrixPointSize = "4";
    QRcode::png($value, false, $errorCorrectionLevel, $matrixPointSize);
    exit;
    ?>

    phpqrcode.php文件

    <?php

    /*
    * PHP QR Code encoder
    *
    * This file contains MERGED version of PHP QR Code library.
    * It was auto-generated from full version for your convenience.
    *
    * This merged version was configured to not requre any external files,
    * with disabled cache, error loging and weker but faster mask matching.
    * If you need tune it up please use non-merged version.
    *
    * For full version, documentation, examples of use please visit:
    *
    * http://phpqrcode.sourceforge.net/
    * https://sourceforge.net/projects/phpqrcode/
    *
    * PHP QR Code is distributed under LGPL 3
    * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
    *
    * 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
    */
    /*
    * Version: 1.1.4
    * Build: 2010100721
    */

    //---- qrconst.php -----------------------------

    /*
    * PHP QR Code encoder
    *
    * Common constants
    *
    * 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>
    *
    * 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
    */

    // Encoding modes

    define('QR_MODE_NUL', -1);
    define('QR_MODE_NUM', 0);
    define('QR_MODE_AN', 1);
    define('QR_MODE_8', 2);
    define('QR_MODE_KANJI', 3);
    define('QR_MODE_STRUCTURE', 4);

    // Levels of error correction.

    define('QR_ECLEVEL_L', 0);
    define('QR_ECLEVEL_M', 1);
    define('QR_ECLEVEL_Q', 2);
    define('QR_ECLEVEL_H', 3);

    // Supported output formats

    define('QR_FORMAT_TEXT', 0);
    define('QR_FORMAT_PNG', 1);

    class qrstr {
    public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
    $srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
    }
    }

    //---- merged_config.php -----------------------------
    /*
    * PHP QR Code encoder
    *
    * Config file, tuned-up for merged verion
    */

    define('QR_CACHEABLE', false); // use cache - more disk reads but less CPU power, masks and format templates are stored there
    define('QR_CACHE_DIR', false); // used when QR_CACHEABLE === true
    define('QR_LOG_DIR', false); // default error logs dir

    define('QR_FIND_BEST_MASK', true); // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
    define('QR_FIND_FROM_RANDOM', 2); // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
    define('QR_DEFAULT_MASK', 2); // when QR_FIND_BEST_MASK === false

    define('QR_PNG_MAXIMUM_SIZE', 1024); // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images

    //---- qrtools.php -----------------------------
    /*
    * PHP QR Code encoder
    *
    * Toolset, handy and debug utilites.
    *
    * PHP QR Code is distributed under LGPL 3
    * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
    *
    * 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
    */

    class QRtools {

    //----------------------------------------------------------------------
    public static function binarize($frame)
    {
    $len = count($frame);
    foreach ($frame as &$frameLine) {

    for($i=0; $i<$len; $i++) {
    $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
    }
    }

    return $frame;
    }

    //----------------------------------------------------------------------
    public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
    {
    $barcode_array = array();

    if (!is_array($mode))
    $mode = explode(',', $mode);

    $eccLevel = 'L';

    if (count($mode) > 1) {
    $eccLevel = $mode[1];
    }

    $qrTab = QRcode::text($code, false, $eccLevel);
    $size = count($qrTab);

    $barcode_array['num_rows'] = $size;
    $barcode_array['num_cols'] = $size;
    $barcode_array['bcode'] = array();

    foreach ($qrTab as $line) {
    $arrAdd = array();
    foreach(str_split($line) as $char)
    $arrAdd[] = ($char=='1')?1:0;
    $barcode_array['bcode'][] = $arrAdd;
    }

    return $barcode_array;
    }

    //----------------------------------------------------------------------
    public static function clearCache()
    {
    self::$frames = array();
    }

    //----------------------------------------------------------------------
    public static function buildCache()
    {
    QRtools::markTime('before_build_cache');

    $mask = new QRmask();
    for ($a=1; $a <= QRSPEC_VERSION_MAX; $a++) {
    $frame = QRspec::newFrame($a);
    if (QR_IMAGE) {
    $fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
    QRimage::png(self::binarize($frame), $fileName, 1, 0);
    }

    $width = count($frame);
    $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
    for ($maskNo=0; $maskNo<8; $maskNo++)
    $mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
    }

    QRtools::markTime('after_build_cache');
    }

    //----------------------------------------------------------------------
    public static function log($outfile, $err)
    {
    if (QR_LOG_DIR !== false) {
    if ($err != '') {
    if ($outfile !== false) {
    file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
    } else {
    file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
    }
    }
    }
    }

    //----------------------------------------------------------------------
    public static function dumpMask($frame)
    {
    $width = count($frame);
    for($y=0;$y<$width;$y++) {
    for($x=0;$x<$width;$x++) {
    echo ord($frame[$y][$x]).',';
    }
    }
    }

    //----------------------------------------------------------------------
    public static function markTime($markerId)
    {
    list($usec, $sec) = explode(" ", microtime());
    $time = ((float)$usec + (float)$sec);

    if (!isset($GLOBALS['qr_time_bench']))
    $GLOBALS['qr_time_bench'] = array();

    $GLOBALS['qr_time_bench'][$markerId] = $time;
    }

    //----------------------------------------------------------------------
    public static function timeBenchmark()
    {
    self::markTime('finish');

    $lastTime = 0;
    $startTime = 0;
    $p = 0;

    echo '<table cellpadding="3" cellspacing="1">
    <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
    <tbody>';

    foreach($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
    if ($p > 0) {
    echo '<tr><th style="text-align:right">till '.$markerId.': </th><td>'.number_format($thisTime-$lastTime, 6).'s</td></tr>';
    } else {
    $startTime = $thisTime;
    }

    $p++;
    $lastTime = $thisTime;
    }

    echo '</tbody><tfoot>
    <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>'.number_format($lastTime-$startTime, 6).'s</td></tr>
    </tfoot>
    </table>';
    }

    }

    //##########################################################################

    QRtools::markTime('start');

    //---- qrspec.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( 1, 0), array( 2, 0), array( 2, 2), array( 2, 2)), // 5
    array(array( 2, 0), array( 4, 0), array( 4, 0), array( 4, 0)),
    array(array( 2, 0), array( 4, 0), array( 2, 4), array( 4, 1)),
    array(array( 2, 0), array( 2, 2), array( 4, 2), array( 4, 2)),
    array(array( 2, 0), array( 3, 2), array( 4, 4), array( 4, 4)),
    array(array( 2, 2), array( 4, 1), array( 6, 2), array( 6, 2)), //10
    array(array( 4, 0), array( 1, 4), array( 4, 4), array( 3, 8)),
    array(array( 2, 2), array( 6, 2), array( 4, 6), array( 7, 4)),
    array(array( 4, 0), array( 8, 1), array( 8, 4), array(12, 4)),
    array(array( 3, 1), array( 4, 5), array(11, 5), array(11, 5)),
    array(array( 5, 1), array( 5, 5), array( 5, 7), array(11, 7)), //15
    array(array( 5, 1), array( 7, 3), array(15, 2), array( 3, 13)),
    array(array( 1, 5), array(10, 1), array( 1, 15), array( 2, 17)),
    array(array( 5, 1), array( 9, 4), array(17, 1), array( 2, 19)),
    array(array( 3, 4), array( 3, 11), array(17, 4), array( 9, 16)),
    array(array( 3, 5), array( 3, 13), array(15, 5), array(15, 10)), //20
    array(array( 4, 4), array(17, 0), array(17, 6), array(19, 6)),
    array(array( 2, 7), array(17, 0), array( 7, 16), array(34, 0)),
    array(array( 4, 5), array( 4, 14), array(11, 14), array(16, 14)),
    array(array( 6, 4), array( 6, 14), array(11, 16), array(30, 2)),
    array(array( 8, 4), array( 8, 13), array( 7, 22), array(22, 13)), //25
    array(array(10, 2), array(19, 4), array(28, 6), array(33, 4)),
    array(array( 8, 4), array(22, 3), array( 8, 26), array(12, 28)),
    array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)),
    array(array( 7, 7), array(21, 7), array( 1, 37), array(19, 26)),
    array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), //30
    array(array(13, 3), array( 2, 29), array(42, 1), array(23, 28)),
    array(array(17, 0), array(10, 23), array(10, 35), array(19, 35)),
    array(array(17, 1), array(14, 21), array(29, 19), array(11, 46)),
    array(array(13, 6), array(14, 23), array(44, 7), array(59, 1)),
    array(array(12, 7), array(12, 26), array(39, 14), array(22, 41)), //35
    array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)),
    array(array(17, 4), array(29, 14), array(49, 10), array(24, 46)),
    array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)),
    array(array(20, 4), array(40, 7), array(43, 22), array(10, 67)),
    array(array(19, 6), array(18, 31), array(34, 34), array(20, 61)),//40
    );

    //----------------------------------------------------------------------
    // CACHEABLE!!!

    public static function getEccSpec($version, $level, array &$spec)
    {
    if (count($spec) < 5) {
    $spec = array(0,0,0,0,0);
    }

    $b1 = self::$eccTable[$version][$level][0];
    $b2 = self::$eccTable[$version][$level][1];
    $data = self::getDataLength($version, $level);
    $ecc = self::getECCLength($version, $level);

    if($b2 == 0) {
    $spec[0] = $b1;
    $spec[1] = (int)($data / $b1);
    $spec[2] = (int)($ecc / $b1);
    $spec[3] = 0;
    $spec[4] = 0;
    } else {
    $spec[0] = $b1;
    $spec[1] = (int)($data / ($b1 + $b2));
    $spec[2] = (int)($ecc / ($b1 + $b2));
    $spec[3] = $b2;
    $spec[4] = $spec[1] + 1;
    }
    }

    // Alignment pattern ---------------------------------------------------

    // Positions of alignment patterns.
    // This array includes only the second and the third position of the
    // alignment patterns. Rest of them can be calculated from the distance
    // between them.

    // See Table 1 in Appendix E (pp.71) of JIS X0510:2004.

    public static $alignmentPattern = array(
    array( 0, 0),
    array( 0, 0), array(18, 0), array(22, 0), array(26, 0), array(30, 0), // 1- 5
    array(34, 0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
    array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), //11-15
    array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), //16-20
    array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), //21-25
    array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), //26-30
    array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), //31-35
    array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58), //35-40
    );
    /** --------------------------------------------------------------------
    * Put an alignment marker.
    * @param frame
    * @param width
    * @param ox,oy center coordinate of the pattern
    */
    public static function putAlignmentMarker(array &$frame, $ox, $oy)
    {
    $finder = array(
    "\xa1\xa1\xa1\xa1\xa1",
    "\xa1\xa0\xa0\xa0\xa1",
    "\xa1\xa0\xa1\xa0\xa1",
    "\xa1\xa0\xa0\xa0\xa1",
    "\xa1\xa1\xa1\xa1\xa1"
    );

    $yStart = $oy-2;
    $xStart = $ox-2;

    for($y=0; $y<5; $y++) {
    QRstr::set($frame, $xStart, $yStart+$y, $finder[$y]);
    }
    }

    //----------------------------------------------------------------------
    public static function putAlignmentPattern($version, &$frame, $width)
    {
    if($version < 2)
    return;

    $d = self::$alignmentPattern[$version][1] - self::$alignmentPattern[$version][0];
    if($d < 0) {
    $w = 2;
    } else {
    $w = (int)(($width - self::$alignmentPattern[$version][0]) / $d + 2);
    }

    if($w * $w - 3 == 1) {
    $x = self::$alignmentPattern[$version][0];
    $y = self::$alignmentPattern[$version][0];
    self::putAlignmentMarker($frame, $x, $y);
    return;
    }

    $cx = self::$alignmentPattern[$version][0];
    for($x=1; $x<$w - 1; $x++) {
    self::putAlignmentMarker($frame, 6, $cx);
    self::putAlignmentMarker($frame, $cx, 6);
    $cx += $d;
    }

    $cy = self::$alignmentPattern[$version][0];
    for($y=0; $y<$w-1; $y++) {
    $cx = self::$alignmentPattern[$version][0];
    for($x=0; $x<$w-1; $x++) {
    self::putAlignmentMarker($frame, $cx, $cy);
    $cx += $d;
    }
    $cy += $d;
    }
    }

    // Version information pattern -----------------------------------------

    // Version information pattern (BCH coded).
    // See Table 1 in Appendix D (pp.68) of JIS X0510:2004.

    // size: [QRSPEC_VERSION_MAX - 6]

    public static $versionPattern = array(
    0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d,
    0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9,
    0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75,
    0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64,
    0x27541, 0x28c69
    );

    //----------------------------------------------------------------------
    public static function getVersionPattern($version)
    {
    if($version < 7 || $version > QRSPEC_VERSION_MAX)
    return 0;

    return self::$versionPattern[$version -7];
    }

    // Format information --------------------------------------------------
    // See calcFormatInfo in tests/test_qrspec.c (orginal qrencode c lib)

    public static $formatInfo = array(
    array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976),
    array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0),
    array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed),
    array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)
    );

    public static function getFormatInfo($mask, $level)
    {
    if($mask < 0 || $mask > 7)
    return 0;

    if($level < 0 || $level > 3)
    return 0;

    return self::$formatInfo[$level][$mask];
    }

    // Frame ---------------------------------------------------------------
    // Cache of initial frames.

    public static $frames = array();

    /** --------------------------------------------------------------------
    * Put a finder pattern.
    * @param frame
    * @param width
    * @param ox,oy upper-left coordinate of the pattern
    */
    public static function putFinderPattern(&$frame, $ox, $oy)
    {
    $finder = array(
    "\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
    "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
    "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
    "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
    "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
    "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
    "\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
    );

    for($y=0; $y<7; $y++) {
    QRstr::set($frame, $ox, $oy+$y, $finder[$y]);
    }
    }

    //----------------------------------------------------------------------
    public static function createFrame($version)
    {
    $width = self::$capacity[$version][QRCAP_WIDTH];
    $frameLine = str_repeat ("\0", $width);
    $frame = array_fill(0, $width, $frameLine);

    // Finder pattern
    self::putFinderPattern($frame, 0, 0);
    self::putFinderPattern($frame, $width - 7, 0);
    self::putFinderPattern($frame, 0, $width - 7);

    // Separator
    $yOffset = $width - 7;

    for($y=0; $y<7; $y++) {
    $frame[$y][7] = "\xc0";
    $frame[$y][$width - 8] = "\xc0";
    $frame[$yOffset][7] = "\xc0";
    $yOffset++;
    }

    $setPattern = str_repeat("\xc0", 8);

    QRstr::set($frame, 0, 7, $setPattern);
    QRstr::set($frame, $width-8, 7, $setPattern);
    QRstr::set($frame, 0, $width - 8, $setPattern);

    // Format info
    $setPattern = str_repeat("\x84", 9);
    QRstr::set($frame, 0, 8, $setPattern);
    QRstr::set($frame, $width - 8, 8, $setPattern, 8);

    $yOffset = $width - 8;

    for($y=0; $y<8; $y++,$yOffset++) {
    $frame[$y][8] = "\x84";
    $frame[$yOffset][8] = "\x84";
    }

    // Timing pattern

    for($i=1; $i<$width-15; $i++) {
    $frame[6][7+$i] = chr(0x90 | ($i & 1));
    $frame[7+$i][6] = chr(0x90 | ($i & 1));
    }

    // Alignment pattern
    self::putAlignmentPattern($version, $frame, $width);

    // Version information
    if($version >= 7) {
    $vinf = self::getVersionPattern($version);

    $v = $vinf;

    for($x=0; $x<6; $x++) {
    for($y=0; $y<3; $y++) {
    $frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
    $v = $v >> 1;
    }
    }

    $v = $vinf;
    for($y=0; $y<6; $y++) {
    for($x=0; $x<3; $x++) {
    $frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
    $v = $v >> 1;
    }
    }
    }

    // and a little bit...
    $frame[$width - 8][8] = "\x81";

    return $frame;
    }

    //----------------------------------------------------------------------
    public static function debug($frame, $binary_mode = false)
    {
    if ($binary_mode) {

    foreach ($frame as &$frameLine) {
    $frameLine = join('<span class="m">&nbsp;&nbsp;</span>', explode('0', $frameLine));
    $frameLine = join('&#9608;&#9608;', explode('1', $frameLine));
    }

    ?>
    <style>
    .m { background-color: white; }
    </style>
    <?php
    echo '<pre><tt><br/ ><br/ ><br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
    echo join("<br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;", $frame);
    echo '</tt></pre><br/ ><br/ ><br/ ><br/ ><br/ ><br/ >';

    } else {

    foreach ($frame as &$frameLine) {
    $frameLine = join('<span class="m">&nbsp;</span>', explode("\xc0", $frameLine));
    $frameLine = join('<span class="m">&#9618;</span>', explode("\xc1", $frameLine));
    $frameLine = join('<span class="p">&nbsp;</span>', explode("\xa0", $frameLine));
    $frameLine = join('<span class="p">&#9618;</span>', explode("\xa1", $frameLine));
    $frameLine = join('<span class="s">&#9671;</span>', explode("\x84", $frameLine)); //format 0
    $frameLine = join('<span class="s">&#9670;</span>', explode("\x85", $frameLine)); //format 1
    $frameLine = join('<span class="x">&#9762;</span>', explode("\x81", $frameLine)); //special bit
    $frameLine = join('<span class="c">&nbsp;</span>', explode("\x90", $frameLine)); //clock 0
    $frameLine = join('<span class="c">&#9719;</span>', explode("\x91", $frameLine)); //clock 1
    $frameLine = join('<span class="f">&nbsp;</span>', explode("\x88", $frameLine)); //version
    $frameLine = join('<span class="f">&#9618;</span>', explode("\x89", $frameLine)); //version
    $frameLine = join('&#9830;', explode("\x01", $frameLine));
    $frameLine = join('&#8901;', explode("\0", $frameLine));
    }

    ?>
    <style>
    .p { background-color: yellow; }
    .m { background-color: #00FF00; }
    .s { background-color: #FF0000; }
    .c { background-color: aqua; }
    .x { background-color: pink; }
    .f { background-color: gold; }
    </style>
    <?php
    echo "<pre><tt>";
    echo join("<br/ >", $frame);
    echo "</tt></pre>";

    }
    }

    //----------------------------------------------------------------------
    public static function serial($frame)
    {
    return gzcompress(join("\n", $frame), 9);
    }

    //----------------------------------------------------------------------
    public static function unserial($code)
    {
    return explode("\n", gzuncompress($code));
    }

    //----------------------------------------------------------------------
    public static function newFrame($version)
    {
    if($version < 1 || $version > QRSPEC_VERSION_MAX)
    return null;

    if(!isset(self::$frames[$version])) {

    $fileName = QR_CACHE_DIR.'frame_'.$version.'.dat';

    if (QR_CACHEABLE) {
    if (file_exists($fileName)) {
    self::$frames[$version] = self::unserial(file_get_contents($fileName));
    } else {
    self::$frames[$version] = self::createFrame($version);
    file_put_contents($fileName, self::serial(self::$frames[$version]));
    }
    } else {
    self::$frames[$version] = self::createFrame($version);
    }
    }

    if(is_null(self::$frames[$version]))
    return null;

    return self::$frames[$version];
    }

    //----------------------------------------------------------------------
    public static function rsBlockNum($spec) { return $spec[0] + $spec[3]; }
    public static function rsBlockNum1($spec) { return $spec[0]; }
    public static function rsDataCodes1($spec) { return $spec[1]; }
    public static function rsEccCodes1($spec) { return $spec[2]; }
    public static function rsBlockNum2($spec) { return $spec[3]; }
    public static function rsDataCodes2($spec) { return $spec[4]; }
    public static function rsEccCodes2($spec) { return $spec[2]; }
    public static function rsDataLength($spec) { return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]); }
    public static function rsEccLength($spec) { return ($spec[0] + $spec[3]) * $spec[2]; }

    }

    //---- qrimage.php -----------------------------
    /*
    * PHP QR Code encoder
    *
    * Image output of code using GD2
    *
    * PHP QR Code is distributed under LGPL 3
    * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
    *
    * 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('QR_IMAGE', true);

    class QRimage {

    //----------------------------------------------------------------------
    public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE)
    {
    $image = self::image($frame, $pixelPerPoint, $outerFrame);

    if ($filename === false) {
    Header("Content-type: image/png");
    ImagePng($image);
    } else {
    if($saveandprint===TRUE){
    ImagePng($image, $filename);
    header("Content-type: image/png");
    ImagePng($image);
    }else{
    ImagePng($image, $filename);
    }
    }

    ImageDestroy($image);
    }

    //----------------------------------------------------------------------
    public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85)
    {
    $image = self::image($frame, $pixelPerPoint, $outerFrame);

    if ($filename === false) {
    Header("Content-type: image/jpeg");
    ImageJpeg($image, null, $q);
    } else {
    ImageJpeg($image, $filename, $q);
    }

    ImageDestroy($image);
    }

    //----------------------------------------------------------------------
    private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4)
    {
    $h = count($frame);
    $w = strlen($frame[0]);

    $imgW = $w + 2*$outerFrame;
    $imgH = $h + 2*$outerFrame;

    $base_image =ImageCreate($imgW, $imgH);

    $col[0] = ImageColorAllocate($base_image,255,255,255);
    $col[1] = ImageColorAllocate($base_image,0,0,0);

    imagefill($base_image, 0, 0, $col[0]);

    for($y=0; $y<$h; $y++) {
    for($x=0; $x<$w; $x++) {
    if ($frame[$y][$x] == '1') {
    ImageSetPixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]);
    }
    }
    }

    $target_image =ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
    ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
    ImageDestroy($base_image);

    return $target_image;
    }
    }

    //---- qrinput.php -----------------------------
    /*
    * PHP QR Code encoder
    *
    * Input encoding class
    *
    * 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>
    *
    * 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('STRUCTURE_HEADER_BITS', 20);
    define('MAX_STRUCTURED_SYMBOLS', 16);

    class QRinputItem {

    public $mode;
    public $size;
    public $data;
    public $bstream;

    public function __construct($mode, $size, $data, $bstream = null)
    {
    $setData = array_slice($data, 0, $size);

    if (count($setData) < $size) {
    $setData = array_merge($setData, array_fill(0,$size-count($setData),0));
    }

    if(!QRinput::check($mode, $size, $setData)) {
    throw new Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));
    return null;
    }

    $this->mode = $mode;
    $this->size = $size;
    $this->data = $setData;
    $this->bstream = $bstream;
    }

    //----------------------------------------------------------------------
    public function encodeModeNum($version)
    {
    try {

    $words = (int)($this->size / 3);
    $bs = new QRbitstream();

    $val = 0x1;
    $bs->appendNum(4, $val);
    $bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);

    for($i=0; $i<$words; $i++) {
    $val = (ord($this->data[$i*3 ]) - ord('0')) * 100;
    $val += (ord($this->data[$i*3+1]) - ord('0')) * 10;
    $val += (ord($this->data[$i*3+2]) - ord('0'));
    $bs->appendNum(10, $val);
    }

    if($this->size - $words * 3 == 1) {
    $val = ord($this->data[$words*3]) - ord('0');
    $bs->appendNum(4, $val);
    } else if($this->size - $words * 3 == 2) {
    $val = (ord($this->data[$words*3 ]) - ord('0')) * 10;
    $val += (ord($this->data[$words*3+1]) - ord('0'));
    $bs->appendNum(7, $val);
    }

    $this->bstream = $bs;
    return 0;

    } catch (Exception $e) {
    return -1;
    }
    }

    //----------------------------------------------------------------------
    public function encodeModeAn($version)
    {
    try {
    $words = (int)($this->size / 2);
    $bs = new QRbitstream();

    $bs->appendNum(4, 0x02);
    $bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);

    for($i=0; $i<$words; $i++) {
    $val = (int)QRinput::lookAnTable(ord($this->data[$i*2 ])) * 45;
    $val += (int)QRinput::lookAnTable(ord($this->data[$i*2+1]));

    $bs->appendNum(11, $val);
    }

    if($this->size & 1) {
    $val = QRinput::lookAnTable(ord($this->data[$words * 2]));
    $bs->appendNum(6, $val);
    }

    $this->bstream = $bs;
    return 0;

    } catch (Exception $e) {
    return -1;
    }
    }

    //----------------------------------------------------------------------
    public function encodeMode8($version)
    {
    try {
    $bs = new QRbitstream();

    $bs->appendNum(4, 0x4);
    $bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);

    for($i=0; $i<$this->size; $i++) {
    $bs->appendNum(8, ord($this->data[$i]));
    }

    $this->bstream = $bs;
    return 0;

    } catch (Exception $e) {
    return -1;
    }
    }

    //----------------------------------------------------------------------
    public function encodeModeKanji($version)
    {
    try {

    $bs = new QRbitrtream();

    $bs->appendNum(4, 0x8);
    $bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));

    for($i=0; $i<$this->size; $i+=2) {
    $val = (ord($this->data[$i]) << 8) | ord($this->data[$i+1]);
    if($val <= 0x9ffc) {
    $val -= 0x8140;
    } else {
    $val -= 0xc140;
    }

    $h = ($val >> 8) * 0xc0;
    $val = ($val & 0xff) + $h;

    $bs->appendNum(13, $val);
    }

    $this->bstream = $bs;
    return 0;

    } catch (Exception $e) {
    return -1;
    }
    }

    //----------------------------------------------------------------------
    public function encodeModeStructure()
    {
    try {
    $bs = new QRbitstream();

    $bs->appendNum(4, 0x03);
    $bs->appendNum(4, ord($this->data[1]) - 1);
    $bs->appendNum(4, ord($this->data[0]) - 1);
    $bs->appendNum(8, ord($this->data[2]));

    $this->bstream = $bs;
    return 0;

    } catch (Exception $e) {
    return -1;
    }
    }

    //----------------------------------------------------------------------
    public function estimateBitStreamSizeOfEntry($version)
    {
    $bits = 0;

    if($version == 0)
    $version = 1;

    switch($this->mode) {
    case QR_MODE_NUM: $bits = QRinput::estimateBitsModeNum($this->size); break;
    case QR_MODE_AN: $bits = QRinput::estimateBitsModeAn($this->size); break;
    case QR_MODE_8: $bits = QRinput::estimateBitsMode8($this->size); break;
    case QR_MODE_KANJI: $bits = QRinput::estimateBitsModeKanji($this->size);break;
    case QR_MODE_STRUCTURE: return STRUCTURE_HEADER_BITS;
    default:
    return 0;
    }

    $l = QRspec::lengthIndicator($this->mode, $version);
    $m = 1 << $l;
    $num = (int)(($this->size + $m - 1) / $m);

    $bits += $num * (4 + $l);

    return $bits;
    }

    //----------------------------------------------------------------------
    public function encodeBitStream($version)
    {
    try {

    unset($this->bstream);
    $words = QRspec::maximumWords($this->mode, $version);

    if($this->size > $words) {

    $st1 = new QRinputItem($this->mode, $words, $this->data);
    $st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));

    $st1->encodeBitStream($version);
    $st2->encodeBitStream($version);

    $this->bstream = new QRbitstream();
    $this->bstream->append($st1->bstream);
    $this->bstream->append($st2->bstream);

    unset($st1);
    unset($st2);

    } else {

    $ret = 0;

    switch($this->mode) {
    case QR_MODE_NUM: $ret = $this->encodeModeNum($version); break;
    case QR_MODE_AN: $ret = $this->encodeModeAn($version); break;
    case QR_MODE_8: $ret = $this->encodeMode8($version); break;
    case QR_MODE_KANJI: $ret = $this->encodeModeKanji($version);break;
    case QR_MODE_STRUCTURE: $ret = $this->encodeModeStructure(); break;

    default:
    break;
    }

    if($ret < 0)
    return -1;
    }

    return $this->bstream->size();

    } catch (Exception $e) {
    return -1;
    }
    }
    };

    //##########################################################################

    class QRinput {

    public $items;

    private $version;
    private $level;

    //----------------------------------------------------------------------
    public function __construct($version = 0, $level = QR_ECLEVEL_L)
    {
    if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
    throw new Exception('Invalid version no');
    return NULL;
    }

    $this->version = $version;
    $this->level = $level;
    }

    //----------------------------------------------------------------------
    public function getVersion()
    {
    return $this->version;
    }

    //----------------------------------------------------------------------
    public function setVersion($version)
    {
    if($version < 0 || $version > QRSPEC_VERSION_MAX) {
    throw new Exception('Invalid version no');
    return -1;
    }

    $this->version = $version;

    return 0;
    }

    //----------------------------------------------------------------------
    public function getErrorCorrectionLevel()
    {
    return $this->level;
    }

    //----------------------------------------------------------------------
    public function setErrorCorrectionLevel($level)
    {
    if($level > QR_ECLEVEL_H) {
    throw new Exception('Invalid ECLEVEL');
    return -1;
    }

    $this->level = $level;

    return 0;
    }

    //----------------------------------------------------------------------
    public function appendEntry(QRinputItem $entry)
    {
    $this->items[] = $entry;
    }

    //----------------------------------------------------------------------
    public function append($mode, $size, $data)
    {
    try {
    $entry = new QRinputItem($mode, $size, $data);
    $this->items[] = $entry;
    return 0;
    } catch (Exception $e) {
    return -1;
    }
    }

    //----------------------------------------------------------------------

    public function insertStructuredAppendHeader($size, $index, $parity)
    {
    if( $size > MAX_STRUCTURED_SYMBOLS ) {
    throw new Exception('insertStructuredAppendHeader wrong size');
    }

    if( $index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {
    throw new Exception('insertStructuredAppendHeader wrong index');
    }

    $buf = array($size, $index, $parity);

    try {
    $entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
    array_unshift($this->items, $entry);
    return 0;
    } catch (Exception $e) {
    return -1;
    }
    }

    //----------------------------------------------------------------------
    public function calcParity()
    {
    $parity = 0;

    foreach($this->items as $item) {
    if($item->mode != QR_MODE_STRUCTURE) {
    for($i=$item->size-1; $i>=0; $i--) {
    $parity ^= $item->data[$i];
    }
    }
    }

    return $parity;
    }

    //----------------------------------------------------------------------
    public static function checkModeNum($size, $data)
    {
    for($i=0; $i<$size; $i++) {
    if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){
    return false;
    }
    }

    return true;
    }

    //----------------------------------------------------------------------
    public static function estimateBitsModeNum($size)
    {
    $w = (int)$size / 3;
    $bits = $w * 10;

    switch($size - $w * 3) {
    case 1:
    $bits += 4;
    break;
    case 2:
    $bits += 7;
    break;
    default:
    break;
    }

    return $bits;
    }

    //----------------------------------------------------------------------
    public static $anTable = array(
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
    0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 44, -1, -1, -1, -1, -1,
    -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
    25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
    );

    //----------------------------------------------------------------------
    public static function lookAnTable($c)
    {
    return (($c > 127)?-1:self::$anTable[$c]);
    }

    //----------------------------------------------------------------------
    public static function checkModeAn($size, $data)
    {
    for($i=0; $i<$size; $i++) {
    if (self::lookAnTable(ord($data[$i])) == -1) {
    return false;
    }
    }

    return true;
    }

    //----------------------------------------------------------------------
    public static function estimateBitsModeAn($size)
    {
    $w = (int)($size / 2);
    $bits = $w * 11;

    if($size & 1) {
    $bits += 6;
    }

    return $bits;
    }

    //----------------------------------------------------------------------
    public static function estimateBitsMode8($size)
    {
    return $size * 8;
    }

    //----------------------------------------------------------------------
    public function estimateBitsModeKanji($size)
    {
    return (int)(($size / 2) * 13);
    }

    //----------------------------------------------------------------------
    public static function checkModeKanji($size, $data)
    {
    if($size & 1)
    return false;

    for($i=0; $i<$size; $i+=2) {
    $val = (ord($data[$i]) << 8) | ord($data[$i+1]);
    if( $val < 0x8140
    || ($val > 0x9ffc && $val < 0xe040)
    || $val > 0xebbf) {
    return false;
    }
    }

    return true;
    }

    /***********************************************************************
    * Validation
    **********************************************************************/

    public static function check($mode, $size, $data)
    {
    if($size <= 0)
    return false;

    switch($mode) {
    case QR_MODE_NUM: return self::checkModeNum($size, $data); break;
    case QR_MODE_AN: return self::checkModeAn($size, $data); break;
    case QR_MODE_KANJI: return self::checkModeKanji($size, $data); break;
    case QR_MODE_8: return true; break;
    case QR_MODE_STRUCTURE: return true; break;

    default:
    break;
    }

    return false;
    }

    //----------------------------------------------------------------------
    public function estimateBitStreamSize($version)
    {
    $bits = 0;

    foreach($this->items as $item) {
    $bits += $item->estimateBitStreamSizeOfEntry($version);
    }

    return $bits;
    }

    //----------------------------------------------------------------------
    public function estimateVersion()
    {
    $version = 0;
    $prev = 0;
    do {
    $prev = $version;
    $bits = $this->estimateBitStreamSize($prev);
    $version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
    if ($version < 0) {
    return -1;
    }
    } while ($version > $prev);

    return $version;
    }

    //----------------------------------------------------------------------
    public static function lengthOfCode($mode, $version, $bits)
    {
    $payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
    switch($mode) {
    case QR_MODE_NUM:
    $chunks = (int)($payload / 10);
    $remain = $payload - $chunks * 10;
    $size = $chunks * 3;
    if($remain >= 7) {
    $size += 2;
    } else if($remain >= 4) {
    $size += 1;
    }
    break;
    case QR_MODE_AN:
    $chunks = (int)($payload / 11);
    $remain = $payload - $chunks * 11;
    $size = $chunks * 2;
    if($remain >= 6)
    $size++;
    break;
    case QR_MODE_8:
    $size = (int)($payload / 8);
    break;
    case QR_MODE_KANJI:
    $size = (int)(($payload / 13) * 2);
    break;
    case QR_MODE_STRUCTURE:
    $size = (int)($payload / 8);
    break;
    default:
    $size = 0;
    break;
    }

    $maxsize = QRspec::maximumWords($mode, $version);
    if($size < 0) $size = 0;
    if($size > $maxsize) $size = $maxsize;

    return $size;
    }

    //----------------------------------------------------------------------
    public function createBitStream()
    {
    $total = 0;

    foreach($this->items as $item) {
    $bits = $item->encodeBitStream($this->version);

    if($bits < 0)
    return -1;

    $total += $bits;
    }

    return $total;
    }

    //----------------------------------------------------------------------
    public function convertData()
    {
    $ver = $this->estimateVersion();
    if($ver > $this->getVersion()) {
    $this->setVersion($ver);
    }

    for(;;) {
    $bits = $this->createBitStream();

    if($bits < 0)
    return -1;

    $ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
    if($ver < 0) {
    throw new Exception('WRONG VERSION');
    return -1;
    } else if($ver > $this->getVersion()) {
    $this->setVersion($ver);
    } else {
    break;
    }
    }

    return 0;
    }

    //----------------------------------------------------------------------
    public function appendPaddingBit(&$bstream)
    {
    $bits = $bstream->size();
    $maxwords = QRspec::getDataLength($this->version, $this->level);
    $maxbits = $maxwords * 8;

    if ($maxbits == $bits) {
    return 0;
    }

    if ($maxbits - $bits < 5) {
    return $bstream->appendNum($maxbits - $bits, 0);
    }

    $bits += 4;
    $words = (int)(($bits + 7) / 8);

    $padding = new QRbitstream();
    $ret = $padding->appendNum($words * 8 - $bits + 4, 0);

    if($ret < 0)
    return $ret;

    $padlen = $maxwords - $words;

    if($padlen > 0) {

    $padbuf = array();
    for($i=0; $i<$padlen; $i++) {
    $padbuf[$i] = ($i&1)?0x11:0xec;
    }

    $ret = $padding->appendBytes($padlen, $padbuf);

    if($ret < 0)
    return $ret;

    }

    $ret = $bstream->append($padding);

    return $ret;
    }

    //----------------------------------------------------------------------
    public function mergeBitStream()
    {
    if($this->convertData() < 0) {
    return null;
    }

    $bstream = new QRbitstream();

    foreach($this->items as $item) {
    $ret = $bstream->append($item->bstream);
    if($ret < 0) {
    return null;
    }
    }

    return $bstream;
    }

    //----------------------------------------------------------------------
    public function getBitStream()
    {

    $bstream = $this->mergeBitStream();

    if($bstream == null) {
    return null;
    }

    $ret = $this->appendPaddingBit($bstream);
    if($ret < 0) {
    return null;
    }

    return $bstream;
    }

    //----------------------------------------------------------------------
    public function getByteStream()
    {
    $bstream = $this->getBitStream();
    if($bstream == null) {
    return null;
    }

    return $bstream->toByte();
    }
    }

    //---- qrbitstream.php -----------------------------
    /*
    * PHP QR Code encoder
    *
    * Bitstream class
    *
    * 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>
    *
    * 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
    */

    class QRbitstream {

    public $data = array();

    //----------------------------------------------------------------------
    public function size()
    {
    return count($this->data);
    }

    //----------------------------------------------------------------------
    public function allocate($setLength)
    {
    $this->data = array_fill(0, $setLength, 0);
    return 0;
    }

    //----------------------------------------------------------------------
    public static function newFromNum($bits, $num)
    {
    $bstream = new QRbitstream();
    $bstream->allocate($bits);

    $mask = 1 << ($bits - 1);
    for($i=0; $i<$bits; $i++) {
    if($num & $mask) {
    $bstream->data[$i] = 1;
    } else {
    $bstream->data[$i] = 0;
    }
    $mask = $mask >> 1;
    }

    return $bstream;
    }

    //----------------------------------------------------------------------
    public static function newFromBytes($size, $data)
    {
    $bstream = new QRbitstream();
    $bstream->allocate($size * 8);
    $p=0;

    for($i=0; $i<$size; $i++) {
    $mask = 0x80;
    for($j=0; $j<8; $j++) {
    if($data[$i] & $mask) {
    $bstream->data[$p] = 1;
    } else {
    $bstream->data[$p] = 0;
    }
    $p++;
    $mask = $mask >> 1;
    }
    }

    return $bstream;
    }

    //----------------------------------------------------------------------
    public function append(QRbitstream $arg)
    {
    if (is_null($arg)) {
    return -1;
    }

    if($arg->size() == 0) {
    return 0;
    }

    if($this->size() == 0) {
    $this->data = $arg->data;
    return 0;
    }

    $this->data = array_values(array_merge($this->data, $arg->data));

    return 0;
    }

    //----------------------------------------------------------------------
    public function appendNum($bits, $num)
    {
    if ($bits == 0)
    return 0;

    $b = QRbitstream::newFromNum($bits, $num);

    if(is_null($b))
    return -1;

    $ret = $this->append($b);
    unset($b);

    return $ret;
    }

    //----------------------------------------------------------------------
    public function appendBytes($size, $data)
    {
    if ($size == 0)
    return 0;

    $b = QRbitstream::newFromBytes($size, $data);

    if(is_null($b))
    return -1;

    $ret = $this->append($b);
    unset($b);

    return $ret;
    }

    //----------------------------------------------------------------------
    public function toByte()
    {

    $size = $this->size();

    if($size == 0) {
    return array();
    }

    $data = array_fill(0, (int)(($size + 7) / 8), 0);
    $bytes = (int)($size / 8);

    $p = 0;

    for($i=0; $i<$bytes; $i++) {
    $v = 0;
    for($j=0; $j<8; $j++) {
    $v = $v << 1;
    $v |= $this->data[$p];
    $p++;
    }
    $data[$i] = $v;
    }

    if($size & 7) {
    $v = 0;
    for($j=0; $j<($size & 7); $j++) {
    $v = $v << 1;
    $v |= $this->data[$p];
    $p++;
    }
    $data[$bytes] = $v;
    }

    return $data;
    }

    }
    //---- qrsplit.php -----------------------------
    /*
    * PHP QR Code encoder
    *
    * Input splitting classes
    *
    * 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
    */
    class QRsplit {

    public $dataStr = '';
    public $input;
    public $modeHint;

    //----------------------------------------------------------------------
    public function __construct($dataStr, $input, $modeHint)
    {
    $this->dataStr = $dataStr;
    $this->input = $input;
    $this->modeHint = $modeHint;
    }

    //----------------------------------------------------------------------
    public static function isdigitat($str, $pos)
    {
    if ($pos >= strlen($str))
    return false;

    return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
    }

    //----------------------------------------------------------------------
    public static function isalnumat($str, $pos)
    {
    if ($pos >= strlen($str))
    return false;

    return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
    }

    //----------------------------------------------------------------------
    public function identifyMode($pos)
    {
    if ($pos >= strlen($this->dataStr))
    return QR_MODE_NUL;

    $c = $this->dataStr[$pos];

    if(self::isdigitat($this->dataStr, $pos)) {
    return QR_MODE_NUM;
    } else if(self::isalnumat($this->dataStr, $pos)) {
    return QR_MODE_AN;
    } else if($this->modeHint == QR_MODE_KANJI) {

    if ($pos+1 < strlen($this->dataStr))
    {
    $d = $this->dataStr[$pos+1];
    $word = (ord($c) << 8) | ord($d);
    if(($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
    return QR_MODE_KANJI;
    }
    }
    }

    return QR_MODE_8;
    }

    //----------------------------------------------------------------------
    public function eatNum()
    {
    $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());

    $p = 0;
    while(self::isdigitat($this->dataStr, $p)) {
    $p++;
    }

    $run = $p;
    $mode = $this->identifyMode($p);

    if($mode == QR_MODE_8) {
    $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
    + QRinput::estimateBitsMode8(1) // + 4 + l8
    - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
    if($dif > 0) {
    return $this->eat8();
    }
    }
    if($mode == QR_MODE_AN) {
    $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
    + QRinput::estimateBitsModeAn(1) // + 4 + la
    - QRinput::estimateBitsModeAn($run + 1);// - 4 - la
    if($dif > 0) {
    return $this->eatAn();
    }
    }

    $ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
    if($ret < 0)
    return -1;

    return $run;
    }

    //----------------------------------------------------------------------
    public function eatAn()
    {
    $la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
    $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());

    $p = 0;

    while(self::isalnumat($this->dataStr, $p)) {
    if(self::isdigitat($this->dataStr, $p)) {
    $q = $p;
    while(self::isdigitat($this->dataStr, $q)) {
    $q++;
    }

    $dif = QRinput::estimateBitsModeAn($p) // + 4 + la
    + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
    - QRinput::estimateBitsModeAn($q); // - 4 - la

    if($dif < 0) {
    break;
    } else {
    $p = $q;
    }
    } else {
    $p++;
    }
    }

    $run = $p;

    if(!self::isalnumat($this->dataStr, $p)) {
    $dif = QRinput::estimateBitsModeAn($run) + 4 + $la
    + QRinput::estimateBitsMode8(1) // + 4 + l8
    - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
    if($dif > 0) {
    return $this->eat8();
    }
    }

    $ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
    if($ret < 0)
    return -1;

    return $run;
    }

    //----------------------------------------------------------------------
    public function eatKanji()
    {
    $p = 0;

    while($this->identifyMode($p) == QR_MODE_KANJI) {
    $p += 2;
    }

    $ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
    if($ret < 0)
    return -1;

    return $run;
    }

    //----------------------------------------------------------------------
    public function eat8()
    {
    $la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
    $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());

    $p = 1;
    $dataStrLen = strlen($this->dataStr);

    while($p < $dataStrLen) {

    $mode = $this->identifyMode($p);
    if($mode == QR_MODE_KANJI) {
    break;
    }
    if($mode == QR_MODE_NUM) {
    $q = $p;
    while(self::isdigitat($this->dataStr, $q)) {
    $q++;
    }
    $dif = QRinput::estimateBitsMode8($p) // + 4 + l8
    + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
    - QRinput::estimateBitsMode8($q); // - 4 - l8
    if($dif < 0) {
    break;
    } else {
    $p = $q;
    }
    } else if($mode == QR_MODE_AN) {
    $q = $p;
    while(self::isalnumat($this->dataStr, $q)) {
    $q++;
    }
    $dif = QRinput::estimateBitsMode8($p) // + 4 + l8
    + QRinput::estimateBitsModeAn($q - $p) + 4 + $la
    - QRinput::estimateBitsMode8($q); // - 4 - l8
    if($dif < 0) {
    break;
    } else {
    $p = $q;
    }
    } else {
    $p++;
    }
    }

    $run = $p;
    $ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));

    if($ret < 0)
    return -1;

    return $run;
    }

    //----------------------------------------------------------------------
    public function splitString()
    {
    while (strlen($this->dataStr) > 0)
    {
    if($this->dataStr == '')
    return 0;

    $mode = $this->identifyMode(0);

    switch ($mode) {
    case QR_MODE_NUM: $length = $this->eatNum(); break;
    case QR_MODE_AN: $length = $this->eatAn(); break;
    case QR_MODE_KANJI:
    if ($hint == QR_MODE_KANJI)
    $length = $this->eatKanji();
    else $length = $this->eat8();
    break;
    default: $length = $this->eat8(); break;

    }

    if($length == 0) return 0;
    if($length < 0) return -1;

    $this->dataStr = substr($this->dataStr, $length);
    }
    }

    //----------------------------------------------------------------------
    public function toUpper()
    {
    $stringLen = strlen($this->dataStr);
    $p = 0;

    while ($p<$stringLen) {
    $mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
    if($mode == QR_MODE_KANJI) {
    $p += 2;
    } else {
    if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
    $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
    }
    $p++;
    }
    }

    return $this->dataStr;
    }

    //----------------------------------------------------------------------
    public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true)
    {
    if(is_null($string) || $string == '\0' || $string == '') {
    throw new Exception('empty string!!!');
    }

    $split = new QRsplit($string, $input, $modeHint);

    if(!$casesensitive)
    $split->toUpper();

    return $split->splitString();
    }
    }

    //---- qrrscode.php -----------------------------
    /*
    * PHP QR Code encoder
    *
    * Reed-Solomon error correction support
    *
    * Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
    * (libfec is released under the GNU Lesser General Public License.)
    *
    * 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>
    *
    * 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
    */

    class QRrsItem {

    public $mm; // Bits per symbol
    public $nn; // Symbols per block (= (1<<mm)-1)
    public $alpha_to = array(); // log lookup table
    public $index_of = array(); // Antilog lookup table
    public $genpoly = array(); // Generator polynomial
    public $nroots; // Number of generator roots = number of parity symbols
    public $fcr; // First consecutive root, index form
    public $prim; // Primitive element, index form
    public $iprim; // prim-th root of 1, index form
    public $pad; // Padding bytes in shortened block
    public $gfpoly;

    //----------------------------------------------------------------------
    public function modnn($x)
    {
    while ($x >= $this->nn) {
    $x -= $this->nn;
    $x = ($x >> $this->mm) + ($x & $this->nn);
    }

    return $x;
    }

    //----------------------------------------------------------------------
    public static function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
    {
    // Common code for intializing a Reed-Solomon control block (char or int symbols)
    // Copyright 2004 Phil Karn, KA9Q
    // May be used under the terms of the GNU Lesser General Public License (LGPL)

    $rs = null;

    // Check parameter ranges
    if($symsize < 0 || $symsize > 8) return $rs;
    if($fcr < 0 || $fcr >= (1<<$symsize)) return $rs;
    if($prim <= 0 || $prim >= (1<<$symsize)) return $rs;
    if($nroots < 0 || $nroots >= (1<<$symsize)) return $rs; // Can't have more roots than symbol values!
    if($pad < 0 || $pad >= ((1<<$symsize) -1 - $nroots)) return $rs; // Too much padding

    $rs = new QRrsItem();
    $rs->mm = $symsize;
    $rs->nn = (1<<$symsize)-1;
    $rs->pad = $pad;

    $rs->alpha_to = array_fill(0, $rs->nn+1, 0);
    $rs->index_of = array_fill(0, $rs->nn+1, 0);

    // PHP style macro replacement 😉
    $NN =& $rs->nn;
    $A0 =& $NN;

    // Generate Galois field lookup tables
    $rs->index_of[0] = $A0; // log(zero) = -inf
    $rs->alpha_to[$A0] = 0; // alpha**-inf = 0
    $sr = 1;

    for($i=0; $i<$rs->nn; $i++) {
    $rs->index_of[$sr] = $i;
    $rs->alpha_to[$i] = $sr;
    $sr <<= 1;
    if($sr & (1<<$symsize)) {
    $sr ^= $gfpoly;
    }
    $sr &= $rs->nn;
    }

    if($sr != 1){
    // field generator polynomial is not primitive!
    $rs = NULL;
    return $rs;
    }

    /* Form RS code generator polynomial from its roots */
    $rs->genpoly = array_fill(0, $nroots+1, 0);

    $rs->fcr = $fcr;
    $rs->prim = $prim;
    $rs->nroots = $nroots;
    $rs->gfpoly = $gfpoly;

    /* Find prim-th root of 1, used in decoding */
    for($iprim=1;($iprim % $prim) != 0;$iprim += $rs->nn)
    ; // intentional empty-body loop!

    $rs->iprim = (int)($iprim / $prim);
    $rs->genpoly[0] = 1;

    for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
    $rs->genpoly[$i+1] = 1;

    // Multiply rs->genpoly[] by @**(root + x)
    for ($j = $i; $j > 0; $j--) {
    if ($rs->genpoly[$j] != 0) {
    $rs->genpoly[$j] = $rs->genpoly[$j-1] ^ $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[$j]] + $root)];
    } else {
    $rs->genpoly[$j] = $rs->genpoly[$j-1];
    }
    }
    // rs->genpoly[0] can never be zero
    $rs->genpoly[0] = $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[0]] + $root)];
    }

    // convert rs->genpoly[] to index form for quicker encoding
    for ($i = 0; $i <= $nroots; $i++)
    $rs->genpoly[$i] = $rs->index_of[$rs->genpoly[$i]];

    return $rs;
    }

    //----------------------------------------------------------------------
    public function encode_rs_char($data, &$parity)
    {
    $MM =& $this->mm;
    $NN =& $this->nn;
    $ALPHA_TO =& $this->alpha_to;
    $INDEX_OF =& $this->index_of;
    $GENPOLY =& $this->genpoly;
    $NROOTS =& $this->nroots;
    $FCR =& $this->fcr;
    $PRIM =& $this->prim;
    $IPRIM =& $this->iprim;
    $PAD =& $this->pad;
    $A0 =& $NN;

    $parity = array_fill(0, $NROOTS, 0);

    for($i=0; $i< ($NN-$NROOTS-$PAD); $i++) {

    $feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
    if($feedback != $A0) {
    // feedback term is non-zero

    // This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
    // always be for the polynomials constructed by init_rs()
    $feedback = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);

    for($j=1;$j<$NROOTS;$j++) {
    $parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS-$j])];
    }
    }

    // Shift
    array_shift($parity);
    if($feedback != $A0) {
    array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
    } else {
    array_push($parity, 0);
    }
    }
    }
    }

    //##########################################################################

    class QRrs {

    public static $items = array();

    //----------------------------------------------------------------------
    public static function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
    {
    foreach(self::$items as $rs) {
    if($rs->pad != $pad) continue;
    if($rs->nroots != $nroots) continue;
    if($rs->mm != $symsize) continue;
    if($rs->gfpoly != $gfpoly) continue;
    if($rs->fcr != $fcr) continue;
    if($rs->prim != $prim) continue;

    return $rs;
    }

    $rs = QRrsItem::init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
    array_unshift(self::$items, $rs);

    return $rs;
    }
    }

    //---- qrmask.php -----------------------------
    /*
    * PHP QR Code encoder
    *
    * Masking
    *
    * 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>
    *
    * 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('N1', 3);
    define('N2', 3);
    define('N3', 40);
    define('N4', 10);

    class QRmask {

    public $runLength = array();

    //----------------------------------------------------------------------
    public function __construct()
    {
    $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
    }

    //----------------------------------------------------------------------
    public function writeFormatInformation($width, &$frame, $mask, $level)
    {
    $blacks = 0;
    $format = QRspec::getFormatInfo($mask, $level);

    for($i=0; $i<8; $i++) {
    if($format & 1) {
    $blacks += 2;
    $v = 0x85;
    } else {
    $v = 0x84;
    }

    $frame[8][$width - 1 - $i] = chr($v);
    if($i < 6) {
    $frame[$i][8] = chr($v);
    } else {
    $frame[$i + 1][8] = chr($v);
    }
    $format = $format >> 1;
    }

    for($i=0; $i<7; $i++) {
    if($format & 1) {
    $blacks += 2;
    $v = 0x85;
    } else {
    $v = 0x84;
    }

    $frame[$width - 7 + $i][8] = chr($v);
    if($i == 0) {
    $frame[8][7] = chr($v);
    } else {
    $frame[8][6 - $i] = chr($v);
    }

    $format = $format >> 1;
    }

    return $blacks;
    }

    //----------------------------------------------------------------------
    public function mask0($x, $y) { return ($x+$y)&1; }
    public function mask1($x, $y) { return ($y&1); }
    public function mask2($x, $y) { return ($x%3); }
    public function mask3($x, $y) { return ($x+$y)%3; }
    public function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; }
    public function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3; }
    public function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1; }
    public function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1; }

    //----------------------------------------------------------------------
    private function generateMaskNo($maskNo, $width, $frame)
    {
    $bitMask = array_fill(0, $width, array_fill(0, $width, 0));

    for($y=0; $y<$width; $y++) {
    for($x=0; $x<$width; $x++) {
    if(ord($frame[$y][$x]) & 0x80) {
    $bitMask[$y][$x] = 0;
    } else {
    $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
    $bitMask[$y][$x] = ($maskFunc == 0)?1:0;
    }

    }
    }

    return $bitMask;
    }

    //----------------------------------------------------------------------
    public static function serial($bitFrame)
    {
    $codeArr = array();

    foreach ($bitFrame as $line)
    $codeArr[] = join('', $line);

    return gzcompress(join("\n", $codeArr), 9);
    }

    //----------------------------------------------------------------------
    public static function unserial($code)
    {
    $codeArr = array();

    $codeLines = explode("\n", gzuncompress($code));
    foreach ($codeLines as $line)
    $codeArr[] = str_split($line);

    return $codeArr;
    }

    //----------------------------------------------------------------------
    public function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false)
    {
    $b = 0;
    $bitMask = array();

    $fileName = QR_CACHE_DIR.'mask_'.$maskNo.DIRECTORY_SEPARATOR.'mask_'.$width.'_'.$maskNo.'.dat';

    if (QR_CACHEABLE) {
    if (file_exists($fileName)) {
    $bitMask = self::unserial(file_get_contents($fileName));
    } else {
    $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
    if (!file_exists(QR_CACHE_DIR.'mask_'.$maskNo))
    mkdir(QR_CACHE_DIR.'mask_'.$maskNo);
    file_put_contents($fileName, self::serial($bitMask));
    }
    } else {
    $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
    }

    if ($maskGenOnly)
    return;

    $d = $s;

    for($y=0; $y<$width; $y++) {
    for($x=0; $x<$width; $x++) {
    if($bitMask[$y][$x] == 1) {
    $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
    }
    $b += (int)(ord($d[$y][$x]) & 1);
    }
    }

    return $b;
    }

    //----------------------------------------------------------------------
    public function makeMask($width, $frame, $maskNo, $level)
    {
    $masked = array_fill(0, $width, str_repeat("\0", $width));
    $this->makeMaskNo($maskNo, $width, $frame, $masked);
    $this->writeFormatInformation($width, $masked, $maskNo, $level);

    return $masked;
    }

    //----------------------------------------------------------------------
    public function calcN1N3($length)
    {
    $demerit = 0;

    for($i=0; $i<$length; $i++) {

    if($this->runLength[$i] >= 5) {
    $demerit += (N1 + ($this->runLength[$i] - 5));
    }
    if($i & 1) {
    if(($i >= 3) && ($i < ($length-2)) && ($this->runLength[$i] % 3 == 0)) {
    $fact = (int)($this->runLength[$i] / 3);
    if(($this->runLength[$i-2] == $fact) &&
    ($this->runLength[$i-1] == $fact) &&
    ($this->runLength[$i+1] == $fact) &&
    ($this->runLength[$i+2] == $fact)) {
    if(($this->runLength[$i-3] < 0) || ($this->runLength[$i-3] >= (4 * $fact))) {
    $demerit += N3;
    } else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) {
    $demerit += N3;
    }
    }
    }
    }
    }
    return $demerit;
    }

    //----------------------------------------------------------------------
    public function evaluateSymbol($width, $frame)
    {
    $head = 0;
    $demerit = 0;

    for($y=0; $y<$width; $y++) {
    $head = 0;
    $this->runLength[0] = 1;

    $frameY = $frame[$y];

    if ($y>0)
    $frameYM = $frame[$y-1];

    for($x=0; $x<$width; $x++) {
    if(($x > 0) && ($y > 0)) {
    $b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
    $w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);

    if(($b22 | ($w22 ^ 1))&1) {
    $demerit += N2;
    }
    }
    if(($x == 0) && (ord($frameY[$x]) & 1)) {
    $this->runLength[0] = -1;
    $head = 1;
    $this->runLength[$head] = 1;
    } else if($x > 0) {
    if((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
    $head++;
    $this->runLength[$head] = 1;
    } else {
    $this->runLength[$head]++;
    }
    }
    }

    $demerit += $this->calcN1N3($head+1);
    }

    for($x=0; $x<$width; $x++) {
    $head = 0;
    $this->runLength[0] = 1;

    for($y=0; $y<$width; $y++) {
    if($y == 0 && (ord($frame[$y][$x]) & 1)) {
    $this->runLength[0] = -1;
    $head = 1;
    $this->runLength[$head] = 1;
    } else if($y > 0) {
    if((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
    $head++;
    $this->runLength[$head] = 1;
    } else {
    $this->runLength[$head]++;
    }
    }
    }

    $demerit += $this->calcN1N3($head+1);
    }

    return $demerit;
    }

    //----------------------------------------------------------------------
    public function mask($width, $frame, $level)
    {
    $minDemerit = PHP_INT_MAX;
    $bestMaskNum = 0;
    $bestMask = array();

    $checked_masks = array(0,1,2,3,4,5,6,7);

    if (QR_FIND_FROM_RANDOM !== false) {

    $howManuOut = 8-(QR_FIND_FROM_RANDOM % 9);
    for ($i = 0; $i < $howManuOut; $i++) {
    $remPos = rand (0, count($checked_masks)-1);
    unset($checked_masks[$remPos]);
    $checked_masks = array_values($checked_masks);
    }

    }

    $bestMask = $frame;

    foreach($checked_masks as $i) {
    $mask = array_fill(0, $width, str_repeat("\0", $width));

    $demerit = 0;
    $blacks = 0;
    $blacks = $this->makeMaskNo($i, $width, $frame, $mask);
    $blacks += $this->writeFormatInformation($width, $mask, $i, $level);
    $blacks = (int)(100 * $blacks / ($width * $width));
    $demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
    $demerit += $this->evaluateSymbol($width, $mask);

    if($demerit < $minDemerit) {
    $minDemerit = $demerit;
    $bestMask = $mask;
    $bestMaskNum = $i;
    }
    }

    return $bestMask;
    }

    //----------------------------------------------------------------------
    }
    //---- qrencode.php -----------------------------
    /*
    * PHP QR Code encoder
    *
    * Main encoder classes.
    *
    * 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>
    *
    * 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
    */

    class QRrsblock {
    public $dataLength;
    public $data = array();
    public $eccLength;
    public $ecc = array();

    public function __construct($dl, $data, $el, &$ecc, QRrsItem $rs)
    {
    $rs->encode_rs_char($data, $ecc);

    $this->dataLength = $dl;
    $this->data = $data;
    $this->eccLength = $el;
    $this->ecc = $ecc;
    }
    };

    //##########################################################################

    class QRrawcode {
    public $version;
    public $datacode = array();
    public $ecccode = array();
    public $blocks;
    public $rsblocks = array(); //of RSblock
    public $count;
    public $dataLength;
    public $eccLength;
    public $b1;

    //----------------------------------------------------------------------
    public function __construct(QRinput $input)
    {
    $spec = array(0,0,0,0,0);

    $this->datacode = $input->getByteStream();
    if(is_null($this->datacode)) {
    throw new Exception('null imput string');
    }

    QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);

    $this->version = $input->getVersion();
    $this->b1 = QRspec::rsBlockNum1($spec);
    $this->dataLength = QRspec::rsDataLength($spec);
    $this->eccLength = QRspec::rsEccLength($spec);
    $this->ecccode = array_fill(0, $this->eccLength, 0);
    $this->blocks = QRspec::rsBlockNum($spec);

    $ret = $this->init($spec);
    if($ret < 0) {
    throw new Exception('block alloc error');
    return null;
    }

    $this->count = 0;
    }

    //----------------------------------------------------------------------
    public function init(array $spec)
    {
    $dl = QRspec::rsDataCodes1($spec);
    $el = QRspec::rsEccCodes1($spec);
    $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);

    $blockNo = 0;
    $dataPos = 0;
    $eccPos = 0;
    for($i=0; $i<QRspec::rsBlockNum1($spec); $i++) {
    $ecc = array_slice($this->ecccode,$eccPos);
    $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
    $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);

    $dataPos += $dl;
    $eccPos += $el;
    $blockNo++;
    }

    if(QRspec::rsBlockNum2($spec) == 0)
    return 0;

    $dl = QRspec::rsDataCodes2($spec);
    $el = QRspec::rsEccCodes2($spec);
    $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);

    if($rs == NULL) return -1;

    for($i=0; $i<QRspec::rsBlockNum2($spec); $i++) {
    $ecc = array_slice($this->ecccode,$eccPos);
    $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
    $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);

    $dataPos += $dl;
    $eccPos += $el;
    $blockNo++;
    }

    return 0;
    }

    //----------------------------------------------------------------------
    public function getCode()
    {
    $ret;

    if($this->count < $this->dataLength) {
    $row = $this->count % $this->blocks;
    $col = $this->count / $this->blocks;
    if($col >= $this->rsblocks[0]->dataLength) {
    $row += $this->b1;
    }
    $ret = $this->rsblocks[$row]->data[$col];
    } else if($this->count < $this->dataLength + $this->eccLength) {
    $row = ($this->count - $this->dataLength) % $this->blocks;
    $col = ($this->count - $this->dataLength) / $this->blocks;
    $ret = $this->rsblocks[$row]->ecc[$col];
    } else {
    return 0;
    }
    $this->count++;

    return $ret;
    }
    }

    //##########################################################################

    class QRcode {

    public $version;
    public $width;
    public $data;

    //----------------------------------------------------------------------
    public function encodeMask(QRinput $input, $mask)
    {
    if($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
    throw new Exception('wrong version');
    }
    if($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
    throw new Exception('wrong level');
    }

    $raw = new QRrawcode($input);

    QRtools::markTime('after_raw');

    $version = $raw->version;
    $width = QRspec::getWidth($version);
    $frame = QRspec::newFrame($version);

    $filler = new FrameFiller($width, $frame);
    if(is_null($filler)) {
    return NULL;
    }

    // inteleaved data and ecc codes
    for($i=0; $i<$raw->dataLength + $raw->eccLength; $i++) {
    $code = $raw->getCode();
    $bit = 0x80;
    for($j=0; $j<8; $j++) {
    $addr = $filler->next();
    $filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
    $bit = $bit >> 1;
    }
    }

    QRtools::markTime('after_filler');

    unset($raw);

    // remainder bits
    $j = QRspec::getRemainder($version);
    for($i=0; $i<$j; $i++) {
    $addr = $filler->next();
    $filler->setFrameAt($addr, 0x02);
    }

    $frame = $filler->frame;
    unset($filler);

    // masking
    $maskObj = new QRmask();
    if($mask < 0) {

    if (QR_FIND_BEST_MASK) {
    $masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
    } else {
    $masked = $maskObj->makeMask($width, $frame, (intval(QR_DEFAULT_MASK) % 8), $input->getErrorCorrectionLevel());
    }
    } else {
    $masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
    }

    if($masked == NULL) {
    return NULL;
    }

    QRtools::markTime('after_mask');

    $this->version = $version;
    $this->width = $width;
    $this->data = $masked;

    return $this;
    }

    //----------------------------------------------------------------------
    public function encodeInput(QRinput $input)
    {
    return $this->encodeMask($input, -1);
    }

    //----------------------------------------------------------------------
    public function encodeString8bit($string, $version, $level)
    {
    if(string == NULL) {
    throw new Exception('empty string!');
    return NULL;
    }

    $input = new QRinput($version, $level);
    if($input == NULL) return NULL;

    $ret = $input->append($input, QR_MODE_8, strlen($string), str_split($string));
    if($ret < 0) {
    unset($input);
    return NULL;
    }
    return $this->encodeInput($input);
    }

    //----------------------------------------------------------------------
    public function encodeString($string, $version, $level, $hint, $casesensitive)
    {

    if($hint != QR_MODE_8 && $hint != QR_MODE_KANJI) {
    throw new Exception('bad hint');
    return NULL;
    }

    $input = new QRinput($version, $level);
    if($input == NULL) return NULL;

    $ret = QRsplit::splitStringToQRinput($string, $input, $hint, $casesensitive);
    if($ret < 0) {
    return NULL;
    }

    return $this->encodeInput($input);
    }

    //----------------------------------------------------------------------
    public static function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false)
    {
    $enc = QRencode::factory($level, $size, $margin);
    return $enc->encodePNG($text, $outfile, $saveandprint=false);
    }

    //----------------------------------------------------------------------
    public static function text($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4)
    {
    $enc = QRencode::factory($level, $size, $margin);
    return $enc->encode($text, $outfile);
    }

    //----------------------------------------------------------------------
    public static function raw($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4)
    {
    $enc = QRencode::factory($level, $size, $margin);
    return $enc->encodeRAW($text, $outfile);
    }
    }

    //##########################################################################

    class FrameFiller {

    public $width;
    public $frame;
    public $x;
    public $y;
    public $dir;
    public $bit;

    //----------------------------------------------------------------------
    public function __construct($width, &$frame)
    {
    $this->width = $width;
    $this->frame = $frame;
    $this->x = $width - 1;
    $this->y = $width - 1;
    $this->dir = -1;
    $this->bit = -1;
    }

    //----------------------------------------------------------------------
    public function setFrameAt($at, $val)
    {
    $this->frame[$at['y']][$at['x']] = chr($val);
    }

    //----------------------------------------------------------------------
    public function getFrameAt($at)
    {
    return ord($this->frame[$at['y']][$at['x']]);
    }

    //----------------------------------------------------------------------
    public function next()
    {
    do {

    if($this->bit == -1) {
    $this->bit = 0;
    return array('x'=>$this->x, 'y'=>$this->y);
    }

    $x = $this->x;
    $y = $this->y;
    $w = $this->width;

    if($this->bit == 0) {
    $x--;
    $this->bit++;
    } else {
    $x++;
    $y += $this->dir;
    $this->bit--;
    }

    if($this->dir < 0) {
    if($y < 0) {
    $y = 0;
    $x -= 2;
    $this->dir = 1;
    if($x == 6) {
    $x--;
    $y = 9;
    }
    }
    } else {
    if($y == $w) {
    $y = $w - 1;
    $x -= 2;
    $this->dir = -1;
    if($x == 6) {
    $x--;
    $y -= 8;
    }
    }
    }
    if($x < 0 || $y < 0) return null;

    $this->x = $x;
    $this->y = $y;

    } while(ord($this->frame[$y][$x]) & 0x80);

    return array('x'=>$x, 'y'=>$y);
    }

    } ;

    //##########################################################################

    class QRencode {

    public $casesensitive = true;
    public $eightbit = false;

    public $version = 0;
    public $size = 3;
    public $margin = 4;

    public $structured = 0; // not supported yet

    public $level = QR_ECLEVEL_L;
    public $hint = QR_MODE_8;

    //----------------------------------------------------------------------
    public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4)
    {
    $enc = new QRencode();
    $enc->size = $size;
    $enc->margin = $margin;

    switch ($level.'') {
    case '0':
    case '1':
    case '2':
    case '3':
    $enc->level = $level;
    break;
    case 'l':
    case 'L':
    $enc->level = QR_ECLEVEL_L;
    break;
    case 'm':
    case 'M':
    $enc->level = QR_ECLEVEL_M;
    break;
    case 'q':
    case 'Q':
    $enc->level = QR_ECLEVEL_Q;
    break;
    case 'h':
    case 'H':
    $enc->level = QR_ECLEVEL_H;
    break;
    }

    return $enc;
    }

    //----------------------------------------------------------------------
    public function encodeRAW($intext, $outfile = false)
    {
    $code = new QRcode();

    if($this->eightbit) {
    $code->encodeString8bit($intext, $this->version, $this->level);
    } else {
    $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
    }

    return $code->data;
    }

    //----------------------------------------------------------------------
    public function encode($intext, $outfile = false)
    {
    $code = new QRcode();

    if($this->eightbit) {
    $code->encodeString8bit($intext, $this->version, $this->level);
    } else {
    $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
    }

    QRtools::markTime('after_encode');

    if ($outfile!== false) {
    file_put_contents($outfile, join("\n", QRtools::binarize($code->data)));
    } else {
    return QRtools::binarize($code->data);
    }
    }

    //----------------------------------------------------------------------
    public function encodePNG($intext, $outfile = false,$saveandprint=false)
    {
    try {

    ob_start();
    $tab = $this->encode($intext);
    $err = ob_get_contents();
    ob_end_clean();

    if ($err != '')
    QRtools::log($outfile, $err);

    $maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));

    QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);

    } catch (Exception $e) {

    QRtools::log($outfile, $e->getMessage());

    }
    }
    }

    转载请注明:RAIN MAN » PHP生成二维码案例

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