解決在頁面中沒法獲取qrcode.js生成的base64的圖片

應用場景

     生成帶二維碼的推廣海報圖片

    舊方法:

    將用戶本身的推廣鏈接先經過qrcode.js生成二維碼，而後再用後臺返回的一張背景圖片和二維碼經過canvas繪製成一張海報。

    問題

    在部分安卓手機上獲取二維碼圖片後，onload事件不起做用，代碼演示以下。

<!---放二維碼--->
<div id="imgs" style="width:100px; height:100px; margin-top:15px;"hidden></div> <!-- 生成canvas海報 --> <canvas id="myCanvas" width="" height=""></canvas> <!-- 生成canvas海報 --> <!--海報彈窗--> <div class="shadow" onclick="shareHide()"></div> <img class="shareImg" id="imgShow" src=""> <script type="text/javascript"> document.onreadystatechange = loadingChange; // 當頁面加載狀態改變的時候執行這個方法. function loadingChange() { if(document.readyState == "Loading") { // 當頁面加載狀態爲徹底結束時進入 // $(".shodowS").show() } if(document.readyState == "complete") { // 當頁面加載狀態爲徹底結束時進入 var qrcodes = new QRCode(document.getElementById("imgs"), { width : 160, height : 160 }); qrcodes.makeCode('{$url}'); // 生成二維碼 shareImgs(); } } var canvas = document.getElementById('myCanvas'); canvas.width=$("#container").width()*2; canvas.height=$("#container").width()*1440/1080*2; $("#myCanvas").css("width",$("#container").width()); $("#myCanvas").css("height",$("#container").width()*1440/1080); // 分享圖片生成的 function shareImgs() { var qrcode=document.getElementById("imgss"); if (canvas.getContext) { var ctx = canvas.getContext('2d'); //建立新的圖片對象 var img = document.getElementById("imgs1"); var img = new Image; //指定圖片的URL // img.crossOrigin="anonymous"; // 這個能夠對蘋果手機作兼容(跨域) // img.src=img.src; img.src='{$bg[0]}'; img.onload = function() { var imgOw=img.width,imgOh=img.height; var imgW=canvas.width,imgH=(imgOh*canvas.width)/imgOw; var imgX=0,imgY=0; //以Canvas畫布上的座標(10,10)爲起始點，繪製圖像 ctx.drawImage(img, imgX, imgY,imgW,imgH); var qrcodeX, qrcodeY,qrcodeW,qrcodeH; qrcode.crossOrigin="anonymous"; qrcode.src=qrcode.src; qrcode.onload = function() { //以Canvas畫布上的座標(10,10)爲起始點，繪製圖像 ctx.drawImage(qrcode,846/1080*canvas.width, 1220/1440*(imgOh*canvas.width)/imgOw+(canvas.height-imgH)/2, 160/1440*img.width, 160/1440*img.width); var _imgSrc = canvas.toDataURL("image/png",1); 　　　　　　 var imgShow = document.getElementById('imgShow'); 　　　　　　 imgShow.setAttribute('src', _imgSrc); } } } } </script>

    

    

解決方法

雖然知道是頁面渲染的前後問題，可是時間很緊，只能跳過使用另外一種方式解決這種在有的手機上不能生成海報的問題。因此決定經過後臺生成二維碼放在頁面，而後JS只須要獲取後臺返回的base64二維碼和海報繪製再生成圖片，最後安卓蘋果手機都能顯示了。

1. 使用的是phpqrcode類，不過須要簡單的修改一下，讓其能生成base64的二維碼，這個我是在網上參考別人的源碼，具體是誰忘記了，記起後代碼原著我會補上，這裏就代碼先上了。

<?php /* * 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 $target_image; } public static function pngString($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE) { $image = self::image($frame, $pixelPerPoint, $outerFrame); if ($filename === false) { ImagePng($image); } else { if($saveandprint===TRUE){ ImagePng($image, $filename); ImagePng($image); }else{ ImagePng($image, $filename); } } ImageDestroy($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, $outfile); } public static function pngString($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false) { $enc = QRencode::factory($level, $size, $margin); return $enc->encodePNGString($text, $outfile, $saveandprint=false); } } //########################################################################## 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, $e->getMessage()); } } public function encodePNGString($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*$this->margin)); QRimage::pngString($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint); } catch (Exception $e) { QRtools::log($outfile, $e->getMessage()); } } }

 

2.  PHP後臺生成並返回

/*生成二維碼**/ //打開緩衝區 ob_start(); //生成二維碼圖片 $returnData = QRcode::pngString($url,false, "H", 3, 1); //這裏就是把生成的圖片流從緩衝區保存到內存對象上，使用base64_encode變成編碼字符串，經過json返回給頁面。 $imageString = base64_encode(ob_get_contents()); //關閉緩衝區 ob_end_clean(); $shareQrcode = "data:image/png;base64,".$imageString; /**生成二維碼*/

 

3. 前端顯示二維碼，並js獲取從新繪製

<!-- 二維碼圖片 -->
<img src="{$bg[0]}" hidden="hidden" id="imgs1">
<!--PHP生成的二維碼-->
<img src="{$shareQrcode}" hidden="hidden" id="phpQrcodeImg">

<script type="text/javascript">

	var canvas = document.getElementById('myCanvas');
	canvas.width=$("#container").width()*2;
	canvas.height=$("#container").width()*1440/1080*2;
	$("#myCanvas").css("width",$("#container").width());
	$("#myCanvas").css("height",$("#container").width()*1440/1080);

	// 分享圖片生成的
	function shareImgs() {
		var qrcode=document.getElementById("imgss");
		var testQrcode = document.getElementById("phpQrcodeImg");
		
		if (canvas.getContext) {
			var ctx = canvas.getContext('2d');
			//建立新的圖片對象
			var img = document.getElementById("imgs1");
			var img = new Image;
			
			img.src='{$bg[0]}';
			img.onload = function() {
				var imgOw=img.width,imgOh=img.height;
				var imgW=canvas.width,imgH=(imgOh*canvas.width)/imgOw;
				var imgX=0,imgY=0;
				//以Canvas畫布上的座標(10,10)爲起始點，繪製圖像
				ctx.drawImage(img, imgX, imgY,imgW,imgH);     
				
				// js生成二維碼在部分安卓機上沒法獲取到二維碼圖片資源最後onload不到
				var qrcodeX, qrcodeY,qrcodeW,qrcodeH;
				qrcode.crossOrigin="anonymous";
				qrcode.src=qrcode.src;
				
				// 修改成PHP生成的二維碼
				testQrcode.crossOrigin="anonymous";
				testQrcode.src = testQrcode.src;
				
				testQrcode.onload = function() {
					//以Canvas畫布上的座標(10,10)爲起始點，繪製圖像
					ctx.drawImage(testQrcode,846/1080*canvas.width, 1220/1440*(imgOh*canvas.width)/imgOw+(canvas.height-imgH)/2, 160/1440*img.width, 160/1440*img.width); 
					var _imgSrc = canvas.toDataURL("image/png",1);
					    // canvas.style.display="none";
			　　　　　　 var imgShow = document.getElementById('imgShow');
			　　　　　　     imgShow.setAttribute('src', _imgSrc);
				}   
			}
		}
	}
</script>

 

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