类的代码:
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));
}
}
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
class QRtools {
public static function binarize($frame){
$len = count($frame);
foreach ($frame as &$frameLine) {
for($i=0; $i$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 $frame = QRspec::newFrame($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; $maskNo$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($y=0;$yfor($x=0;$xecho 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;
$p = 0;
echo '
BENCHMARK | |
till '.$markerId.': | '.number_format($thisTime-$lastTime, 6).'s |
---|---|
TOTAL: | '.number_format($lastTime-$startTime, 6).'s |
}
}
//##########################################################################
QRtools::markTime('start');
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; $i$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 $l = 0;
} else if ($version $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 $l = 0;
} else if($version $l = 1;
} else {
$l = 2;
}
$bits = self::$lengthTableBits[$mode][$l];
$words = (1 if($mode == QR_MODE_KANJI) {
$words *= 2; // the number of bytes is required
}
return $words;
}
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) $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;
}
}
public static $alignmentPattern = array(
array( 0, 0),
array( 0, 0), array(18, 0), array(22, 0), array(26, 0), array(30, 0), // 1- 5
array(34, 0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), //11-15
array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), //16-20
array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), //21-25
array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), //26-30
array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), //31-35
array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58), //35-40
);
public static function putAlignmentMarker(array &$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; $yQRstr::set($frame, $xStart, $yStart+$y, $finder[$y]);
}
}
public static function putAlignmentPattern($version, &$frame, $width){
if($version return;
$d = self::$alignmentPattern[$version][1] - self::$alignmentPattern[$version][0];
if($d $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; $xself::putAlignmentMarker($frame, 6, $cx);
self::putAlignmentMarker($frame, $cx, 6);
$cx += $d;
}
$cy = self::$alignmentPattern[$version][0];
for($y=0; $y$cx = self::$alignmentPattern[$version][0];
for($x=0; $xself::putAlignmentMarker($frame, $cx, $cy);
$cx += $d;
}
$cy += $d;
}
}
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($version QRSPEC_VERSION_MAX)
return 0;
return self::$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 7)
return 0;
if($level 3)
return 0;
return self::$formatInfo[$level][$mask];
}
// Frame ---------------------------------------------------------------
// Cache of initial frames.
public static $frames = array();
public static function putFinderPattern(&$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; $yQRstr::set($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; $y$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; $y$frame[$y][8] = "\x84";
$frame[$yOffset][8] = "\x84";
}
// Timing pattern
for($i=1; $i$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; $xfor($y=0; $y$frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
$v = $v >> 1;
}
}
$v = $vinf;
for($y=0; $yfor($x=0; $x$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(' ', explode('0', $frameLine));
$frameLine = join('██', explode('1', $frameLine));
}
echo '
<tt><br><br><br> '; <br>echo join("<br> ", $frame); <br>echo '</tt>
';
} else {
foreach ($frame as &$frameLine) {
$frameLine = join(' ', explode("\xc0", $frameLine));
$frameLine = join('▒', explode("\xc1", $frameLine));
$frameLine = join(' ', explode("\xa0", $frameLine));
$frameLine = join('▒', explode("\xa1", $frameLine));
$frameLine = join('◇', explode("\x84", $frameLine)); //format 0
$frameLine = join('◆', explode("\x85", $frameLine)); //format 1
$frameLine = join('☢', explode("\x81", $frameLine)); //special bit
$frameLine = join(' ', explode("\x90", $frameLine)); //clock 0
$frameLine = join('◷', explode("\x91", $frameLine)); //clock 1
$frameLine = join(' ', explode("\x88", $frameLine)); //version
$frameLine = join('▒', explode("\x89", $frameLine)); //version
$frameLine = join('♦', explode("\x01", $frameLine));
$frameLine = join('⋅', explode("\0", $frameLine));
}
echo "
<tt>"; <br>echo join("<br>", $frame); <br>echo "</tt>";
}
}
public static function serial($frame){
return gzcompress(join("\n", $frame), 9);
}
public static function unserial($code){
return explode("\n", gzuncompress($code));
}
public static function newFrame($version){
if($version QRSPEC_VERSION_MAX)
return null;
if(!isset(self::$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]) * $spec[2]; }
}
define('QR_IMAGE', true);
class QRimage {
public static function png($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; $yfor($x=0; $xif ($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;
}
}
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) $setData = array_merge($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; $i$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; $i$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; $isize; $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; $isize; $i+=2) {
$val = (ord($this->data[$i]) data[$i+1]);
if($val $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 $num = (int)(($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 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 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 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 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; $iif((ord($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; $iif (self::lookAnTable(ord($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; $i$val = (ord($data[$i]) if( $val || ($val > 0x9ffc && $val || $val > 0xebbf) {
return false;
}
}
return true;
}
public static function check($mode, $size, $data){
if($size 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 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 if($size > $maxsize) $size = $maxsize;
return $size;
}
public function createBitStream(){
$total = 0;
foreach($this->items as $item) {
$bits = $item->encodeBitStream($this->version);
if($bits 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 return -1;
$ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
if($ver 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 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 return $ret;
$padlen = $maxwords - $words;
if($padlen > 0) {
$padbuf = array();
for($i=0; $i$padbuf[$i] = ($i&1)?0x11:0xec;
}
$ret = $padding->appendBytes($padlen, $padbuf);
if($ret return $ret;
}
$ret = $bstream->append($padding);
return $ret;
}
public function mergeBitStream(){
if($this->convertData() return null;
}
$bstream = new QRbitstream();
foreach($this->items as $item) {
$ret = $bstream->append($item->bstream);
if($ret return null;
}
}
return $bstream;
}
public function getBitStream(){
$bstream = $this->mergeBitStream();
if($bstream == null) {
return null;
}
$ret = $this->appendPaddingBit($bstream);
if($ret return null;
}
return $bstream;
}
public function getByteStream(){
$bstream = $this->getBitStream();
if($bstream == null) {
return null;
}
return $bstream->toByte();
}
}
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);
$mask = 1 for($i=0; $iif($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; $i$mask = 0x80;
for($j=0; $jif($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; $i$v = 0;
for($j=0; $j$v = $v $v |= $this->data[$p];
$p++;
}
$data[$i] = $v;
}
if($size & 7) {
$v = 0;
for($j=0; $j$v = $v $v |= $this->data[$p];
$p++;
}
$data[$bytes] = $v;
}
return $data;
}
}
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[$pos]) }
public static function isalnumat($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 dataStr))
{
$d = $this->dataStr[$pos+1];
$word = (ord($c) if(($word >= 0x8140 && $word = 0xe040 && $word 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 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 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 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 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 $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 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 break;
} else {
$p = $q;
}
} else {
$p++;
}
}
$run = $p;
$ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
if($ret 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 $this->dataStr = substr($this->dataStr, $length);
}
}
public function toUpper(){
$stringLen = strlen($this->dataStr);
$p = 0;
while ($p$mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
if($mode == QR_MODE_KANJI) {
$p += 2;
} else {
if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) $this->dataStr[$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();
}
}
class QRrsItem {
public $mm; // Bits per symbol
public $nn; // Symbols per block (= (1public $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 8) return $rs;
if($fcr = (1if($prim = (1if($nroots = (1if($pad = ((1$rs = new QRrsItem();
$rs->mm = $symsize;
$rs->nn = (1$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; $inn; $i++) {
$rs->index_of[$sr] = $i;
$rs->alpha_to[$i] = $sr;
$sr if($sr & (1$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 $rs->genpoly[$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 $rs->genpoly[$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; $i$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;$j$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;
}
}
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; $iif($format & 1) {
$blacks += 2;
$v = 0x85;
} else {
$v = 0x84;
}
$frame[8][$width - 1 - $i] = chr($v);
if($i $frame[$i][8] = chr($v);
} else {
$frame[$i + 1][8] = chr($v);
}
$format = $format >> 1;
}
for($i=0; $iif($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; $yfor($x=0; $xif(ord($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; $yfor($x=0; $xif($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; $iif($this->runLength[$i] >= 5) {
$demerit += (N1 + ($this->runLength[$i] - 5));
}
if($i & 1) {
if(($i >= 3) && ($i 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[$i-3] runLength[$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; $y$head = 0;
$this->runLength[0] = 1;
$frameY = $frame[$y];
if ($y>0)
$frameYM = $frame[$y-1];
for($x=0; $xif(($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; $x$head = 0;
$this->runLength[0] = 1;
for($y=0; $yif($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 $remPos = rand (0, count($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 = $demerit;
$bestMask = $mask;
$bestMaskNum = $i;
}
}
return $bestMask;
}
}
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 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; $i<:rsblocknum1>$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; $i<:rsblocknum2>$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 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 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() 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; $idataLength + $raw->eccLength; $i++) {
$code = $raw->getCode();
$bit = 0x80;
for($j=0; $j$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; $i$addr = $filler->next();
$filler->setFrameAt($addr, 0x02);
}
$frame = $filler->frame;
unset($filler);
// masking
$maskObj = new QRmask();
if($mask 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($ret unset($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;

Le type PHP invite à améliorer la qualité et la lisibilité du code. 1) Conseils de type scalaire: Depuis PHP7.0, les types de données de base sont autorisés à être spécifiés dans les paramètres de fonction, tels que INT, Float, etc. 2) Invite de type de retour: Assurez la cohérence du type de valeur de retour de fonction. 3) Invite de type d'union: Depuis PHP8.0, plusieurs types peuvent être spécifiés dans les paramètres de fonction ou les valeurs de retour. 4) Invite de type nullable: permet d'inclure des valeurs nulles et de gérer les fonctions qui peuvent renvoyer les valeurs nulles.

Dans PHP, utilisez le mot-clé Clone pour créer une copie de l'objet et personnalisez le comportement de clonage via la méthode de magie du clone \ _ \ _. 1. Utilisez le mot-clé Clone pour faire une copie peu profonde, en clonant les propriétés de l'objet mais pas aux propriétés de l'objet. 2. La méthode du clone \ _ \ _ peut copier profondément les objets imbriqués pour éviter les problèmes de copie superficiels. 3. Faites attention pour éviter les références circulaires et les problèmes de performance dans le clonage et optimiser les opérations de clonage pour améliorer l'efficacité.

PHP convient aux systèmes de développement Web et de gestion de contenu, et Python convient aux scripts de science des données, d'apprentissage automatique et d'automatisation. 1.Php fonctionne bien dans la création de sites Web et d'applications rapides et évolutifs et est couramment utilisé dans CMS tel que WordPress. 2. Python a permis de manière remarquable dans les domaines de la science des données et de l'apprentissage automatique, avec des bibliothèques riches telles que Numpy et Tensorflow.

Les acteurs clés des en-têtes de cache HTTP incluent le contrôle du cache, l'ETAG et la dernière modification. 1.CACHE-Control est utilisé pour contrôler les politiques de mise en cache. Exemple: Cache-Control: Max-Age = 3600, public. 2. Etag vérifie les changements de ressources par le biais d'identifiants uniques, exemple: ETAG: "686897696A7C876B7E". 3.Last-modifié indique le dernier temps de modification de la ressource, exemple: dernier modifié: mer, 21oct201507: 28: 00gmt.

Dans PHP, Password_Hash et Password_verify Les fonctions doivent être utilisées pour implémenter le hachage de mot de passe sécurisé, et MD5 ou SHA1 ne doit pas être utilisé. 1) Password_hash génère un hachage contenant des valeurs de sel pour améliorer la sécurité. 2) Password_verify Vérifiez le mot de passe et assurez-vous la sécurité en comparant les valeurs de hachage. 3) MD5 et SHA1 sont vulnérables et manquent de valeurs de sel, et ne conviennent pas à la sécurité de mot de passe moderne.

PHP est un langage de script côté serveur utilisé pour le développement Web dynamique et les applications côté serveur. 1.Php est un langage interprété qui ne nécessite pas de compilation et convient au développement rapide. 2. Le code PHP est intégré à HTML, ce qui facilite le développement de pages Web. 3. PHP traite la logique côté serveur, génère une sortie HTML et prend en charge l'interaction utilisateur et le traitement des données. 4. PHP peut interagir avec la base de données, traiter la soumission du formulaire et exécuter les tâches côté serveur.

PHP a façonné le réseau au cours des dernières décennies et continuera de jouer un rôle important dans le développement Web. 1) PHP est originaire de 1994 et est devenu le premier choix pour les développeurs en raison de sa facilité d'utilisation et de son intégration transparente avec MySQL. 2) Ses fonctions principales incluent la génération de contenu dynamique et l'intégration à la base de données, ce qui permet au site Web d'être mis à jour en temps réel et affiché de manière personnalisée. 3) La large application et l'écosystème de PHP ont motivé son impact à long terme, mais il fait également face à des mises à jour de version et à des défis de sécurité. 4) Les améliorations des performances ces dernières années, telles que la sortie de PHP7, lui permettent de rivaliser avec les langues modernes. 5) À l'avenir, PHP doit faire face à de nouveaux défis tels que la conteneurisation et les microservices, mais sa flexibilité et sa communauté active le rendent adaptable.

Les principaux avantages du PHP comprennent la facilité d'apprentissage, un soutien solide sur le développement Web, les bibliothèques et les cadres riches, les performances élevées et l'évolutivité, la compatibilité multiplateforme et la rentabilité. 1) Facile à apprendre et à utiliser, adapté aux débutants; 2) une bonne intégration avec les serveurs Web et prend en charge plusieurs bases de données; 3) ont des cadres puissants tels que Laravel; 4) Des performances élevées peuvent être obtenues grâce à l'optimisation; 5) prendre en charge plusieurs systèmes d'exploitation; 6) Open source pour réduire les coûts de développement.


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