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qrcode-generator.php
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qrcode-generator.php
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<?php namespace Processwire\FieldtypeQRCode;
//---------------------------------------------------------------
// QRCode for PHP5, updated to use namespaced constants instead
// of define()
//
// Copyright (c) 2009 Kazuhiko Arase, updated by Romain Cazier
//
// URLS:
// http://www.d-project.com/
// https://eprc.studio
//
// Licensed under the MIT license:
// http://www.opensource.org/licenses/mit-license.php
//
// The word "QR Code" is registered trademark of
// DENSO WAVE INCORPORATED
// http://www.denso-wave.com/qrcode/faqpatent-e.html
//
//---------------------------------------------------------------
//---------------------------------------------------------------
// QRCode
//---------------------------------------------------------------
const QR_PAD0 = 0xEC;
const QR_PAD1 = 0x11;
class QRCode {
var $typeNumber;
var $modules;
var $moduleCount;
var $errorCorrectLevel;
var $qrDataList;
function __construct() {
$this->typeNumber = 1;
$this->errorCorrectLevel = QR_ERROR_CORRECT_LEVEL_H;
$this->qrDataList = array();
}
function getTypeNumber() {
return $this->typeNumber;
}
function setTypeNumber($typeNumber) {
$this->typeNumber = $typeNumber;
}
function getErrorCorrectLevel() {
return $this->errorCorrectLevel;
}
function setErrorCorrectLevel($errorCorrectLevel) {
$this->errorCorrectLevel = $errorCorrectLevel;
}
function addData($data, $mode = 0) {
if ($mode == 0) {
$mode = QRUtil::getMode($data);
}
switch($mode) {
case QR_MODE_NUMBER :
$this->addDataImpl(new QRNumber($data) );
break;
case QR_MODE_ALPHA_NUM :
$this->addDataImpl(new QRAlphaNum($data) );
break;
case QR_MODE_8BIT_BYTE :
$this->addDataImpl(new QR8BitByte($data) );
break;
case QR_MODE_KANJI :
$this->addDataImpl(new QRKanji($data) );
break;
default :
trigger_error("mode:$mode", E_USER_ERROR);
}
}
function clearData() {
$this->qrDataList = array();
}
function addDataImpl($qrData) {
$this->qrDataList[] = $qrData;
}
function getDataCount() {
return count($this->qrDataList);
}
function getData($index) {
return $this->qrDataList[$index];
}
function isDark($row, $col) {
if ($this->modules[$row][$col] !== null) {
return $this->modules[$row][$col];
} else {
return false;
}
}
function getModuleCount() {
return $this->moduleCount;
}
// used for converting fg/bg colors (e.g. #0000ff = 0x0000FF)
// added 2015.07.27 ~ DoktorJ
function hex2rgb($hex = 0x0) {
return array(
'r' => floor($hex / 65536),
'g' => floor($hex / 256) % 256,
'b' => $hex % 256
);
}
function make() {
$this->makeImpl(false, $this->getBestMaskPattern() );
}
function getBestMaskPattern() {
$minLostPoint = 0;
$pattern = 0;
for ($i = 0; $i < 8; $i++) {
$this->makeImpl(true, $i);
$lostPoint = QRUtil::getLostPoint($this);
if ($i == 0 || $minLostPoint > $lostPoint) {
$minLostPoint = $lostPoint;
$pattern = $i;
}
}
return $pattern;
}
function createNullArray($length) {
$nullArray = array();
for ($i = 0; $i < $length; $i++) {
$nullArray[] = null;
}
return $nullArray;
}
function makeImpl($test, $maskPattern) {
$this->moduleCount = $this->typeNumber * 4 + 17;
$this->modules = array();
for ($i = 0; $i < $this->moduleCount; $i++) {
$this->modules[] = $this->createNullArray($this->moduleCount);
}
$this->setupPositionProbePattern(0, 0);
$this->setupPositionProbePattern($this->moduleCount - 7, 0);
$this->setupPositionProbePattern(0, $this->moduleCount - 7);
$this->setupPositionAdjustPattern();
$this->setupTimingPattern();
$this->setupTypeInfo($test, $maskPattern);
if ($this->typeNumber >= 7) {
$this->setupTypeNumber($test);
}
$dataArray = $this->qrDataList;
$data = $this->createData($this->typeNumber, $this->errorCorrectLevel, $dataArray);
$this->mapData($data, $maskPattern);
}
function mapData(&$data, $maskPattern) {
$inc = -1;
$row = $this->moduleCount - 1;
$bitIndex = 7;
$byteIndex = 0;
for ($col = $this->moduleCount - 1; $col > 0; $col -= 2) {
if ($col == 6) $col--;
while (true) {
for ($c = 0; $c < 2; $c++) {
if ($this->modules[$row][$col - $c] === null) {
$dark = false;
if ($byteIndex < count($data) ) {
$dark = ( ( ($data[$byteIndex] >> $bitIndex) & 1) == 1);
}
if (QRUtil::getMask($maskPattern, $row, $col - $c)) {
$dark = !$dark;
}
$this->modules[$row][$col - $c] = $dark;
$bitIndex--;
if ($bitIndex == -1) {
$byteIndex++;
$bitIndex = 7;
}
}
}
$row += $inc;
if ($row < 0 || $this->moduleCount <= $row) {
$row -= $inc;
$inc = -$inc;
break;
}
}
}
}
function setupPositionAdjustPattern() {
$pos = QRUtil::getPatternPosition($this->typeNumber);
for ($i = 0; $i < count($pos); $i++) {
for ($j = 0; $j < count($pos); $j++) {
$row = $pos[$i];
$col = $pos[$j];
if ($this->modules[$row][$col] !== null) {
continue;
}
for ($r = -2; $r <= 2; $r++) {
for ($c = -2; $c <= 2; $c++) {
$this->modules[$row + $r][$col + $c] =
$r == -2 || $r == 2 || $c == -2 || $c == 2 || ($r == 0 && $c == 0);
}
}
}
}
}
function setupPositionProbePattern($row, $col) {
for ($r = -1; $r <= 7; $r++) {
for ($c = -1; $c <= 7; $c++) {
if ($row + $r <= -1 || $this->moduleCount <= $row + $r
|| $col + $c <= -1 || $this->moduleCount <= $col + $c) {
continue;
}
$this->modules[$row + $r][$col + $c] =
(0 <= $r && $r <= 6 && ($c == 0 || $c == 6) )
|| (0 <= $c && $c <= 6 && ($r == 0 || $r == 6) )
|| (2 <= $r && $r <= 4 && 2 <= $c && $c <= 4);
}
}
}
function setupTimingPattern() {
for ($i = 8; $i < $this->moduleCount - 8; $i++) {
if ($this->modules[$i][6] !== null || $this->modules[6][$i] !== null) {
continue;
}
$this->modules[$i][6] = ($i % 2 == 0);
$this->modules[6][$i] = ($i % 2 == 0);
}
}
function setupTypeNumber($test) {
$bits = QRUtil::getBCHTypeNumber($this->typeNumber);
for ($i = 0; $i < 18; $i++) {
$mod = (!$test && ( ($bits >> $i) & 1) == 1);
$this->modules[(int)floor($i / 3)][$i % 3 + $this->moduleCount - 8 - 3] = $mod;
$this->modules[$i % 3 + $this->moduleCount - 8 - 3][floor($i / 3)] = $mod;
}
}
function setupTypeInfo($test, $maskPattern) {
$data = ($this->errorCorrectLevel << 3) | $maskPattern;
$bits = QRUtil::getBCHTypeInfo($data);
for ($i = 0; $i < 15; $i++) {
$mod = (!$test && ( ($bits >> $i) & 1) == 1);
if ($i < 6) {
$this->modules[$i][8] = $mod;
} else if ($i < 8) {
$this->modules[$i + 1][8] = $mod;
} else {
$this->modules[$this->moduleCount - 15 + $i][8] = $mod;
}
if ($i < 8) {
$this->modules[8][$this->moduleCount - $i - 1] = $mod;
} else if ($i < 9) {
$this->modules[8][15 - $i - 1 + 1] = $mod;
} else {
$this->modules[8][15 - $i - 1] = $mod;
}
}
$this->modules[$this->moduleCount - 8][8] = !$test;
}
function createData($typeNumber, $errorCorrectLevel, $dataArray) {
$rsBlocks = QRRSBlock::getRSBlocks($typeNumber, $errorCorrectLevel);
$buffer = new QRBitBuffer();
for ($i = 0; $i < count($dataArray); $i++) {
/** @var \QRData $data */
$data = $dataArray[$i];
$buffer->put($data->getMode(), 4);
$buffer->put($data->getLength(), $data->getLengthInBits($typeNumber) );
$data->write($buffer);
}
$totalDataCount = 0;
for ($i = 0; $i < count($rsBlocks); $i++) {
$totalDataCount += $rsBlocks[$i]->getDataCount();
}
if ($buffer->getLengthInBits() > $totalDataCount * 8) {
trigger_error("code length overflow. ("
. $buffer->getLengthInBits()
. ">"
. $totalDataCount * 8
. ")", E_USER_ERROR);
}
// end code.
if ($buffer->getLengthInBits() + 4 <= $totalDataCount * 8) {
$buffer->put(0, 4);
}
// padding
while ($buffer->getLengthInBits() % 8 != 0) {
$buffer->putBit(false);
}
// padding
while (true) {
if ($buffer->getLengthInBits() >= $totalDataCount * 8) {
break;
}
$buffer->put(QR_PAD0, 8);
if ($buffer->getLengthInBits() >= $totalDataCount * 8) {
break;
}
$buffer->put(QR_PAD1, 8);
}
return $this->createBytes($buffer, $rsBlocks);
}
/**
* @param \QRBitBuffer $buffer
* @param \QRRSBlock[] $rsBlocks
*
* @return array
*/
function createBytes(&$buffer, &$rsBlocks) {
$offset = 0;
$maxDcCount = 0;
$maxEcCount = 0;
$dcdata = $this->createNullArray(count($rsBlocks) );
$ecdata = $this->createNullArray(count($rsBlocks) );
$rsBlockCount = count($rsBlocks);
for ($r = 0; $r < $rsBlockCount; $r++) {
$dcCount = $rsBlocks[$r]->getDataCount();
$ecCount = $rsBlocks[$r]->getTotalCount() - $dcCount;
$maxDcCount = max($maxDcCount, $dcCount);
$maxEcCount = max($maxEcCount, $ecCount);
$dcdata[$r] = $this->createNullArray($dcCount);
$dcDataCount = count($dcdata[$r]);
for ($i = 0; $i < $dcDataCount; $i++) {
$bdata = $buffer->getBuffer();
$dcdata[$r][$i] = 0xff & $bdata[$i + $offset];
}
$offset += $dcCount;
$rsPoly = QRUtil::getErrorCorrectPolynomial($ecCount);
$rawPoly = new QRPolynomial($dcdata[$r], $rsPoly->getLength() - 1);
$modPoly = $rawPoly->mod($rsPoly);
$ecdata[$r] = $this->createNullArray($rsPoly->getLength() - 1);
$ecDataCount = count($ecdata[$r]);
for ($i = 0; $i < $ecDataCount; $i++) {
$modIndex = $i + $modPoly->getLength() - count($ecdata[$r]);
$ecdata[$r][$i] = ($modIndex >= 0)? $modPoly->get($modIndex) : 0;
}
}
$totalCodeCount = 0;
for ($i = 0; $i < $rsBlockCount; $i++) {
$totalCodeCount += $rsBlocks[$i]->getTotalCount();
}
$data = $this->createNullArray($totalCodeCount);
$index = 0;
for ($i = 0; $i < $maxDcCount; $i++) {
for ($r = 0; $r < $rsBlockCount; $r++) {
if ($i < count($dcdata[$r]) ) {
$data[$index++] = $dcdata[$r][$i];
}
}
}
for ($i = 0; $i < $maxEcCount; $i++) {
for ($r = 0; $r < $rsBlockCount; $r++) {
if ($i < count($ecdata[$r]) ) {
$data[$index++] = $ecdata[$r][$i];
}
}
}
return $data;
}
static function getMinimumQRCode($data, $errorCorrectLevel) {
$mode = QRUtil::getMode($data);
$qr = new QRCode();
$qr->setErrorCorrectLevel($errorCorrectLevel);
$qr->addData($data, $mode);
$qrData = $qr->getData(0);
$length = $qrData->getLength();
for ($typeNumber = 1; $typeNumber <= 40; $typeNumber++) {
if ($length <= QRUtil::getMaxLength($typeNumber, $mode, $errorCorrectLevel) ) {
$qr->setTypeNumber($typeNumber);
break;
}
}
$qr->make();
return $qr;
}
// added $fg (foreground), $bg (background), and $bgtrans (use transparent bg) parameters
// also added some simple error checking on parameters
// updated 2015.07.27 ~ DoktorJ
function createImage($size = 2, $margin = 2, $fg = 0x000000, $bg = 0xFFFFFF, $bgtrans = false) {
// size/margin EC
if (!is_numeric($size)) $size = 2;
if (!is_numeric($margin)) $margin = 2;
if ($size < 1) $size = 1;
if ($margin < 0) $margin = 0;
$image_size = $this->getModuleCount() * $size + $margin * 2;
$image = imagecreatetruecolor($image_size, $image_size);
// fg/bg EC
if ($fg < 0 || $fg > 0xFFFFFF) $fg = 0x0;
if ($bg < 0 || $bg > 0xFFFFFF) $bg = 0xFFFFFF;
// convert hexadecimal RGB to arrays for imagecolorallocate
$fgrgb = $this->hex2rgb($fg);
$bgrgb = $this->hex2rgb($bg);
// replace $black and $white with $fgc and $bgc
$fgc = imagecolorallocate($image, $fgrgb['r'], $fgrgb['g'], $fgrgb['b']);
$bgc = imagecolorallocate($image, $bgrgb['r'], $bgrgb['g'], $bgrgb['b']);
if ($bgtrans) imagecolortransparent($image, $bgc);
// update $white to $bgc
imagefilledrectangle($image, 0, 0, $image_size, $image_size, $bgc);
for ($r = 0; $r < $this->getModuleCount(); $r++) {
for ($c = 0; $c < $this->getModuleCount(); $c++) {
if ($this->isDark($r, $c) ) {
// update $black to $fgc
imagefilledrectangle($image,
$margin + $c * $size,
$margin + $r * $size,
$margin + ($c + 1) * $size - 1,
$margin + ($r + 1) * $size - 1,
$fgc);
}
}
}
return $image;
}
function printHTML($size = "2px") {
$style = "border-style:none;border-collapse:collapse;margin:0px;padding:0px;";
print("<table style='$style'>");
for ($r = 0; $r < $this->getModuleCount(); $r++) {
print("<tr style='$style'>");
for ($c = 0; $c < $this->getModuleCount(); $c++) {
$color = $this->isDark($r, $c)? "#000000" : "#ffffff";
print("<td style='$style;width:$size;height:$size;background-color:$color'></td>");
}
print("</tr>");
}
print("</table>");
}
public function printSVG($size = 2)
{
$width = $this->getModuleCount() * $size;
$height = $width;
print('<svg width="' . $width . '" height="' . $height . '" viewBox="0 0 ' . $width . ' ' . $height . '" xmlns="http://www.w3.org/2000/svg">');
for ($r = 0; $r < $this->getModuleCount(); $r++) {
for ($c = 0; $c < $this->getModuleCount(); $c++) {
$color = $this->isDark($r, $c) ? "#000000" : "#ffffff";
print('<rect x="' . ($c * $size) . '" y="' . ($r * $size) . '" width="' . $size . '" height="' . $size . '" fill="' . $color . '"/>');
}
}
print("</svg>");
}
}
//---------------------------------------------------------------
// QRUtil
//---------------------------------------------------------------
const QR_G15 = (1 << 10) | (1 << 8) | (1 << 5)
| (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0);
const QR_G18 = (1 << 12) | (1 << 11) | (1 << 10)
| (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0);
const QR_G15_MASK = (1 << 14) | (1 << 12) | (1 << 10)
| (1 << 4) | (1 << 1);
class QRUtil {
static $QR_MAX_LENGTH = array(
array( array(41, 25, 17, 10), array(34, 20, 14, 8), array(27, 16, 11, 7), array(17, 10, 7, 4) ),
array( array(77, 47, 32, 20), array(63, 38, 26, 16), array(48, 29, 20, 12), array(34, 20, 14, 8) ),
array( array(127, 77, 53, 32), array(101, 61, 42, 26), array(77, 47, 32, 20), array(58, 35, 24, 15) ),
array( array(187, 114, 78, 48), array(149, 90, 62, 38), array(111, 67, 46, 28), array(82, 50, 34, 21) ),
array( array(255, 154, 106, 65), array(202, 122, 84, 52), array(144, 87, 60, 37), array(106, 64, 44, 27) ),
array( array(322, 195, 134, 82), array(255, 154, 106, 65), array(178, 108, 74, 45), array(139, 84, 58, 36) ),
array( array(370, 224, 154, 95), array(293, 178, 122, 75), array(207, 125, 86, 53), array(154, 93, 64, 39) ),
array( array(461, 279, 192, 118), array(365, 221, 152, 93), array(259, 157, 108, 66), array(202, 122, 84, 52) ),
array( array(552, 335, 230, 141), array(432, 262, 180, 111), array(312, 189, 130, 80), array(235, 143, 98, 60) ),
array( array(652, 395, 271, 167), array(513, 311, 213, 131), array(364, 221, 151, 93), array(288, 174, 119, 74) )
);
static $QR_PATTERN_POSITION_TABLE = array(
array(),
array(6, 18),
array(6, 22),
array(6, 26),
array(6, 30),
array(6, 34),
array(6, 22, 38),
array(6, 24, 42),
array(6, 26, 46),
array(6, 28, 50),
array(6, 30, 54),
array(6, 32, 58),
array(6, 34, 62),
array(6, 26, 46, 66),
array(6, 26, 48, 70),
array(6, 26, 50, 74),
array(6, 30, 54, 78),
array(6, 30, 56, 82),
array(6, 30, 58, 86),
array(6, 34, 62, 90),
array(6, 28, 50, 72, 94),
array(6, 26, 50, 74, 98),
array(6, 30, 54, 78, 102),
array(6, 28, 54, 80, 106),
array(6, 32, 58, 84, 110),
array(6, 30, 58, 86, 114),
array(6, 34, 62, 90, 118),
array(6, 26, 50, 74, 98, 122),
array(6, 30, 54, 78, 102, 126),
array(6, 26, 52, 78, 104, 130),
array(6, 30, 56, 82, 108, 134),
array(6, 34, 60, 86, 112, 138),
array(6, 30, 58, 86, 114, 142),
array(6, 34, 62, 90, 118, 146),
array(6, 30, 54, 78, 102, 126, 150),
array(6, 24, 50, 76, 102, 128, 154),
array(6, 28, 54, 80, 106, 132, 158),
array(6, 32, 58, 84, 110, 136, 162),
array(6, 26, 54, 82, 110, 138, 166),
array(6, 30, 58, 86, 114, 142, 170)
);
static function getPatternPosition($typeNumber) {
return self::$QR_PATTERN_POSITION_TABLE[$typeNumber - 1];
}
static function getMaxLength($typeNumber, $mode, $errorCorrectLevel) {
$t = $typeNumber - 1;
$e = 0;
$m = 0;
switch($errorCorrectLevel) {
case QR_ERROR_CORRECT_LEVEL_L : $e = 0; break;
case QR_ERROR_CORRECT_LEVEL_M : $e = 1; break;
case QR_ERROR_CORRECT_LEVEL_Q : $e = 2; break;
case QR_ERROR_CORRECT_LEVEL_H : $e = 3; break;
default :
trigger_error("e:$errorCorrectLevel", E_USER_ERROR);
}
switch($mode) {
case QR_MODE_NUMBER : $m = 0; break;
case QR_MODE_ALPHA_NUM : $m = 1; break;
case QR_MODE_8BIT_BYTE : $m = 2; break;
case QR_MODE_KANJI : $m = 3; break;
default :
trigger_error("m:$mode", E_USER_ERROR);
}
return self::$QR_MAX_LENGTH[$t][$e][$m];
}
static function getErrorCorrectPolynomial($errorCorrectLength) {
$a = new QRPolynomial(array(1) );
for ($i = 0; $i < $errorCorrectLength; $i++) {
$a = $a->multiply(new QRPolynomial(array(1, QRMath::gexp($i) ) ) );
}
return $a;
}
static function getMask($maskPattern, $i, $j) {
switch ($maskPattern) {
case QR_MASK_PATTERN000 : return ($i + $j) % 2 == 0;
case QR_MASK_PATTERN001 : return $i % 2 == 0;
case QR_MASK_PATTERN010 : return $j % 3 == 0;
case QR_MASK_PATTERN011 : return ($i + $j) % 3 == 0;
case QR_MASK_PATTERN100 : return (floor($i / 2) + floor($j / 3) ) % 2 == 0;
case QR_MASK_PATTERN101 : return ($i * $j) % 2 + ($i * $j) % 3 == 0;
case QR_MASK_PATTERN110 : return ( ($i * $j) % 2 + ($i * $j) % 3) % 2 == 0;
case QR_MASK_PATTERN111 : return ( ($i * $j) % 3 + ($i + $j) % 2) % 2 == 0;
default :
trigger_error("mask:$maskPattern", E_USER_ERROR);
}
}
/**
* @param \QRCode $qrCode
*
* @return float|int
*/
static function getLostPoint($qrCode) {
$moduleCount = $qrCode->getModuleCount();
$lostPoint = 0;
// LEVEL1
for ($row = 0; $row < $moduleCount; $row++) {
for ($col = 0; $col < $moduleCount; $col++) {
$sameCount = 0;
$dark = $qrCode->isDark($row, $col);
for ($r = -1; $r <= 1; $r++) {
if ($row + $r < 0 || $moduleCount <= $row + $r) {
continue;
}
for ($c = -1; $c <= 1; $c++) {
if (($col + $c < 0 || $moduleCount <= $col + $c) || ($r == 0 && $c == 0)) {
continue;
}
if ($dark == $qrCode->isDark($row + $r, $col + $c) ) {
$sameCount++;
}
}
}
if ($sameCount > 5) {
$lostPoint += (3 + $sameCount - 5);
}
}
}
// LEVEL2
for ($row = 0; $row < $moduleCount - 1; $row++) {
for ($col = 0; $col < $moduleCount - 1; $col++) {
$count = 0;
if ($qrCode->isDark($row, $col ) ) $count++;
if ($qrCode->isDark($row + 1, $col ) ) $count++;
if ($qrCode->isDark($row, $col + 1) ) $count++;
if ($qrCode->isDark($row + 1, $col + 1) ) $count++;
if ($count == 0 || $count == 4) {
$lostPoint += 3;
}
}
}
// LEVEL3
for ($row = 0; $row < $moduleCount; $row++) {
for ($col = 0; $col < $moduleCount - 6; $col++) {
if ($qrCode->isDark($row, $col)
&& !$qrCode->isDark($row, $col + 1)
&& $qrCode->isDark($row, $col + 2)
&& $qrCode->isDark($row, $col + 3)
&& $qrCode->isDark($row, $col + 4)
&& !$qrCode->isDark($row, $col + 5)
&& $qrCode->isDark($row, $col + 6) ) {
$lostPoint += 40;
}
}
}
for ($col = 0; $col < $moduleCount; $col++) {
for ($row = 0; $row < $moduleCount - 6; $row++) {
if ($qrCode->isDark($row, $col)
&& !$qrCode->isDark($row + 1, $col)
&& $qrCode->isDark($row + 2, $col)
&& $qrCode->isDark($row + 3, $col)
&& $qrCode->isDark($row + 4, $col)
&& !$qrCode->isDark($row + 5, $col)
&& $qrCode->isDark($row + 6, $col) ) {
$lostPoint += 40;
}
}
}
// LEVEL4
$darkCount = 0;
for ($col = 0; $col < $moduleCount; $col++) {
for ($row = 0; $row < $moduleCount; $row++) {
if ($qrCode->isDark($row, $col) ) {
$darkCount++;
}
}
}
$ratio = abs(100 * $darkCount / $moduleCount / $moduleCount - 50) / 5;
$lostPoint += $ratio * 10;
return $lostPoint;
}
static function getMode($s) {
if (QRUtil::isAlphaNum($s) ) {
if (QRUtil::isNumber($s) ) {
return QR_MODE_NUMBER;
}
return QR_MODE_ALPHA_NUM;
} else if (QRUtil::isKanji($s) ) {
return QR_MODE_KANJI;
} else {
return QR_MODE_8BIT_BYTE;
}
}
static function isNumber($s) {
for ($i = 0; $i < strlen($s); $i++) {
$c = ord($s[$i]);
if (!(QRUtil::toCharCode('0') <= $c && $c <= QRUtil::toCharCode('9') ) ) {
return false;
}
}
return true;
}
static function isAlphaNum($s) {
for ($i = 0; $i < strlen($s); $i++) {
$c = ord($s[$i]);
if (!(QRUtil::toCharCode('0') <= $c && $c <= QRUtil::toCharCode('9') )
&& !(QRUtil::toCharCode('A') <= $c && $c <= QRUtil::toCharCode('Z') )
&& strpos(" $%*+-./:", $s[$i]) === false) {
return false;
}
}
return true;
}
static function isKanji($s) {
$data = $s;
$i = 0;
while ($i + 1 < strlen($data) ) {
$c = ( (0xff & ord($data[$i]) ) << 8) | (0xff & ord($data[$i + 1]) );
if (!(0x8140 <= $c && $c <= 0x9FFC) && !(0xE040 <= $c && $c <= 0xEBBF) ) {
return false;
}
$i += 2;
}
if ($i < strlen($data) ) {
return false;
}
return true;
}
static function toCharCode($s) {
return ord($s[0]);
}
static function getBCHTypeInfo($data) {
$d = $data << 10;
while (QRUtil::getBCHDigit($d) - QRUtil::getBCHDigit(QR_G15) >= 0) {
$d ^= (QR_G15 << (QRUtil::getBCHDigit($d) - QRUtil::getBCHDigit(QR_G15) ) );
}
return ( ($data << 10) | $d) ^ QR_G15_MASK;
}
static function getBCHTypeNumber($data) {
$d = $data << 12;
while (QRUtil::getBCHDigit($d) - QRUtil::getBCHDigit(QR_G18) >= 0) {
$d ^= (QR_G18 << (QRUtil::getBCHDigit($d) - QRUtil::getBCHDigit(QR_G18) ) );
}
return ($data << 12) | $d;
}
static function getBCHDigit($data) {
$digit = 0;
while ($data != 0) {
$digit++;
$data >>= 1;
}
return $digit;
}
}
//---------------------------------------------------------------
// QRRSBlock
//---------------------------------------------------------------
class QRRSBlock {
var $totalCount;
var $dataCount;
static $QR_RS_BLOCK_TABLE = array(
// L
// M
// Q
// H
// 1
array(1, 26, 19),
array(1, 26, 16),
array(1, 26, 13),
array(1, 26, 9),
// 2
array(1, 44, 34),
array(1, 44, 28),
array(1, 44, 22),
array(1, 44, 16),
// 3
array(1, 70, 55),
array(1, 70, 44),
array(2, 35, 17),
array(2, 35, 13),
// 4
array(1, 100, 80),
array(2, 50, 32),
array(2, 50, 24),
array(4, 25, 9),
// 5
array(1, 134, 108),
array(2, 67, 43),
array(2, 33, 15, 2, 34, 16),
array(2, 33, 11, 2, 34, 12),
// 6
array(2, 86, 68),
array(4, 43, 27),
array(4, 43, 19),
array(4, 43, 15),
// 7
array(2, 98, 78),
array(4, 49, 31),
array(2, 32, 14, 4, 33, 15),
array(4, 39, 13, 1, 40, 14),
// 8
array(2, 121, 97),
array(2, 60, 38, 2, 61, 39),
array(4, 40, 18, 2, 41, 19),
array(4, 40, 14, 2, 41, 15),
// 9
array(2, 146, 116),
array(3, 58, 36, 2, 59, 37),
array(4, 36, 16, 4, 37, 17),
array(4, 36, 12, 4, 37, 13),
// 10
array(2, 86, 68, 2, 87, 69),
array(4, 69, 43, 1, 70, 44),
array(6, 43, 19, 2, 44, 20),
array(6, 43, 15, 2, 44, 16),
// 11
array(4, 101, 81),
array(1, 80, 50, 4, 81, 51),
array(4, 50, 22, 4, 51, 23),
array(3, 36, 12, 8, 37, 13),
// 12
array(2, 116, 92, 2, 117, 93),
array(6, 58, 36, 2, 59, 37),
array(4, 46, 20, 6, 47, 21),
array(7, 42, 14, 4, 43, 15),
// 13
array(4, 133, 107),
array(8, 59, 37, 1, 60, 38),
array(8, 44, 20, 4, 45, 21),
array(12, 33, 11, 4, 34, 12),
// 14