<?php
/**
 * 重庆赤晓店信息科技有限公司
 * https://www.chixiaodian.com
 * Copyright (c) 2023 赤店商城 All rights reserved.
 */
namespace app\utils;
class QrCode{
    public static function image($text, $pixel = 200, $icon = false, $distinguish = 'L', $type = 'PNG', $margin = 0, $color = false, $spec=1, $stream = false, $OutputPath = null){
        //string 文字
        $string = new qrcode_string();
        $string->initial($text, $distinguish, intval($spec));
        $datacode = $string->getByteStream();
        $version = $string->version;
        //pattern 模式
        $pattern = new qrcode_pattern();
        $width = $pattern->getWidth($version);
        $frame = $pattern->newFrame($version);
        //exchange 转换
        $exchange = new qrcode_exchange();
        $masked = $exchange->run($string, $width, $frame, $datacode);
        $tab = $exchange->binarize($masked);
        if(true === $stream) return $tab;
        //image 图像
        $img = new qrcode_image();
        $im = $img->ImgColor($tab, $pixel, $icon, $margin, $color);
        if(!is_string($OutputPath)){
            $OutputPath = null;
        }
        if(strtoupper($type) == 'PNG'){
            header('Content-type: image/PNG');
            ImagePNG($im, $OutputPath);
        }else{
            header('Content-type: image/JPEG');
            ImageJPEG($im, $OutputPath);//合成输出
        }
        ImageDestroy($im); //结束图形
        return $im;
    }
}//END class qrcode

/*
* QR Code Image 图像处理
* Author: weibo.com/yakeing
* ImageCreate 256色
* ImageCreateTrueColor 真彩色
* ImageCopyResized  粗糙速度快
* ImageCopyResampled  平滑速度慢
*/
class qrcode_image{
    //图像与颜色
    function ImgColor($frame, $pixel, $iconurl, $margin, $color){
        //$pixel = $pixel/count($frame);
        if(is_array($color) && 2 == count($color)){ //RGB
            $RGB = array();
            foreach($color as $value){
                $matches = array();
                if(preg_match('/^([0-9]{0,3}),([0-9]{0,3}),([0-9]{0,3})$/', $value, $matches)){
                    array_shift($matches);
                    $RGB[] = array_map(
                        function($person) {
                            return ($person > 255) ? 255 : $person;
                        }, $matches);
                }else{
                    $RGB[] = array(255, 0, 0);
                }
            }
        }else if(preg_match('/^[#]?([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2}),[#]?([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/i', $color, $matches)){ //十六进制
                array_shift($matches);
                 $RGB = array_chunk(
                    array_map(function($person) {
                            return hexdec($person);
                        }, $matches), 3);
        }else{
            $RGB = array(array(255, 0, 0), array(0, 0, 0));
        }
        $im = $this->image($frame, $pixel, $margin, $RGB);
        if(is_file($iconurl)) $im = $this->addIcon($im, $iconurl, $RGB);
        return $im;
    } //END img

    //构造图层
    private function image($frame, $PixelPoint, $blank, $RGB){
        $PixelPoint = intval($PixelPoint);
        $blank = intval($blank);
        if($PixelPoint < 1) $PixelPoint = 1;
        $h = count($frame);
        $w = strlen($frame[0]);
        // $imgW = $h * $PixelPoint;
        // $imgH = $w * $PixelPoint;
        $imgW = $imgH = $PixelPoint;
        $chart = ImageCreateTrueColor($w, $h);//真彩
        $black = ImageColorAllocate($chart, $RGB[1][0], $RGB[1][1], $RGB[1][2]);//底色黑
        ImageFill($chart, 0, 0, ImageColorAllocate($chart, $RGB[0][0], $RGB[0][1], $RGB[0][2]));//图形着色->底色白
        for($y=0; $y<$h; ++$y){
            for($x=0; $x<$w; ++$x){
                if ($frame[$y][$x] == '1'){
                    ImageSetPixel($chart,$x,$y,$black); //画一个单一像素
                }
            }
        }
        $basics = ImageCreateTrueColor($imgW, $imgH);
        ImageCopyResized($basics, $chart, 0, 0, 0, 0, $imgW, $imgH, $w, $h);//复制新图并调整大小
        ImageDestroy($chart); //销毁一图像
        if($blank > 0){//追加边框
            $rimW = $imgW+$blank;
            $rimH = $imgH+$blank;
            $rim = ImageCreateTrueColor($rimW, $rimH);
            ImageFill($rim, 0, 0, ImageColorAllocate($rim, $RGB[0][0], $RGB[0][1], $RGB[0][2]));
            ImageCopyResized($rim, $basics, $blank/2, $blank/2, 0, 0, $imgW, $imgH, $imgW, $imgH);
            ImageDestroy($basics);
            return $rim;
        }else{
            return $basics;
        }
    } //END image

    //ADD ICON  (3.7948)
    // http://php.net/manual/zh/function.exif-imagetype.php 图像类型常量
    private function addIcon($im, $icon, $RGB){
        if(function_exists('exif_imagetype')){
            $type = exif_imagetype($icon);
        }else{
            list($width, $height, $type, $attr) = getimagesize($icon);
        }
        switch($type){
            case 1: //IMAGETYPE_GIF
                $ico = ImageCreateFromGIF($icon);
                break;
            case 2: //IMAGETYPE_JPEG
                $ico = ImageCreateFromJPEG($icon);
                break;
            case 3: //IMAGETYPE_PNG
                $ico = ImageCreateFromPNG($icon);
                break;
            default: exit('Image type or image path error. Support type: GIF JPG PNG');
        }
        $x = ImagesX($ico);
        $y = ImagesY($ico);
        $RadiusIco = $this->radiusImage($ico, $x, $y);
        //white Background
        $BackgX = $x/8+$x;
        $BackgY = $y/8+$y;
        $white_im = ImageCreateTrueColor($BackgX, $BackgY);
        $white_colo = ImageColorAllocate($white_im, $RGB[0][0], $RGB[0][1], $RGB[0][2]);
        ImageFill($white_im, 0, 0, $white_colo);
        $white_icox = $BackgX/2-$x/2+1;
        $white_icoy = $BackgY/2-$y/2+1;
        ImageCopyResized($white_im, $RadiusIco, $white_icox, $white_icoy, 0, 0, $x, $y, $x, $y);
        ImageDestroy($RadiusIco);
        $RadiusWhite = $this->radiusImage($white_im, $BackgX, $BackgY);
        ImageDestroy($white_im);
        //Transparent Background + alpha
        $AlphaIm = ImageCreateTrueColor($BackgX, $BackgY);
        $AlphaColo = ImageColorAllocateAlpha($AlphaIm, 255, 0, 0, 127);//分配颜色 + alpha
        ImageFill($AlphaIm, 0, 0, $AlphaColo);
        ImageCopyResized($AlphaIm, $RadiusWhite, 0, 0, 0, 0, $BackgX, $BackgY, $BackgX, $BackgY);
        ImageDestroy($RadiusWhite);
        imagesavealpha($AlphaIm, true);
        //QR Background Synthesis
        $radiusX = ImagesX($AlphaIm);
        $RadiusY = ImagesY($AlphaIm);
        $qrX = ImagesX($im);
        $qrY = ImagesY($im);
        $w = $qrX/3.7948;
        $h = $qrY/3.7948;
        $newX = $qrX/2-($w/2)+1;
        $newY = $qrY/2-($h/2)+1;
        ImageCopyResampled($im,$AlphaIm,$newX,$newY,0,0,$w,$h,$radiusX,$RadiusY);
        ImageDestroy($AlphaIm);
        return $im;
    } //END addIcon

    //图片圆角
    //GD 2.0.1 或更高版本
    private function radiusImage($im, $width, $height){
        $image = ImageCreateTrueColor($width, $height); //新建真彩图像
        $bgcolor = ImageColorAllocate($image, 255, 0, 0);
        ImageFill($image, 0, 0, $bgcolor);
        ImageCopyMerge($image, $im, 0, 0, 0, 0, $width, $height, 100);
        //radius Image
        $radiusX = $width/4;
        $radiusY = $height/4;
        $img = ImageCreateTrueColor($radiusX, $radiusY); //新建真彩图像
        $fgcolor = ImageColorAllocate($img, 0, 0, 0);
        $bgcolor = ImageColorAllocate($img, 255, 0, 0);
        ImageFill($img, 0, 0, $bgcolor);
        //180 270 开始角度到结束角度
        ImageFilledArc($img, $radiusX, $radiusY, $radiusX*2, $radiusY*2, 180, 270, $fgcolor, IMG_ARC_PIE);
        imagecolortransparent($img, $fgcolor);
        // Top left
        ImageCopyMerge($image, $img, 0, 0, 0, 0, $width, $height, 100);
        // Bottom left
        $bottom_left  = ImageRotate($img, 90, $bgcolor);  //角度旋转
        ImageCopyMerge($image, $bottom_left, 0, $height - $radiusY+1, 0, 0, $width, $height, 100);
        ImageDestroy($bottom_left);
        // Top right
        $top_right  = ImageRotate($img, 180, $bgcolor);
        ImageCopyMerge($image, $top_right, $width - $radiusX+1, $height - $radiusY+1, 0, 0, $width, $height, 100);
        ImageDestroy($top_right);
        // Bottom right
        $bottom_right  = ImageRotate($img, 270, $bgcolor);
        ImageCopyMerge($image, $bottom_right, $width - $radiusX+1, 0, 0, 0, $width, $height, 100);
        ImageDestroy($bottom_right);
        ImageDestroy($img);
        ImageColorTransparent($image, $bgcolor);  //设置颜色为透明
        return $image;
    } //END radiusImage

}//END class qrcode_image


/*
* QR Code Exchange 转换
*
* PHP QR Code is distributed under LGPL 3
* Copyright (C) 2010 Dominik Dzienia
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
class qrcode_exchange{

    //二进制转换
    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;
    }//END binarize

    //run 初始run
    function run($input, $width, $frame, $datacode){
        $this->runLength = array();
        $this->runLength = array_fill(0, 177 + 1, 0);
        $raw = new qrcode_string();
        $raw->datacode = $datacode;
        $raw->setString($input);
        $filler = new qrcode_exchange();
        $filler->initframe($width, $frame);
        for($i=0; $i<$raw->dataLength + $raw->eccLength; ++$i) {
            $code = $raw->getCode();
            $bit = 0x80;
            for($j=0; $j<8; ++$j) {
                $addr = $filler->nexts();
                $filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
                $bit = $bit >> 1;
            }
        }
        $j = $this->getRemainder($input->version);
        for($i=0; $i<$j; ++$i) {
            $addr = $filler->nexts();
            $filler->setFrameAt($addr, 0x02);
        }
        return $this->mask($width, $filler->frame, $input->level);
    }//END run

    //initframe 初始框架数据
    private function initframe($width, $frame){
            $this->width = $width;
            $this->frame = $frame;
            $this->x = $width - 1;
            $this->y = $width - 1;
            $this->dir = -1;
            $this->bit = -1;
    }//END initframe

    //get 得到剩余
    private function getRemainder($version){
            return qrcode_table::$capacity[$version][2];
    }//END getRemainder

    //set设置框架
    private function setFrameAt($at, $val){
            $this->frame[$at['y']][$at['x']] = chr($val);
    }//END setFrameAt

    //next 紧邻
    private function nexts(){
        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);
    }//END next

    //mask 掩码
    private function mask($width, $frame, $level){
        $minDemerit = PHP_INT_MAX;
        $bestMaskNum = 0;
        $bestMask = array();
        $checked_masks = array(0,1,2,3,4,5,6,7);
            $howManuOut = 8-(2 % 9);
            for ($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) * 10);
            $demerit += $this->evaluateSymbol($width, $mask);
            if($demerit < $minDemerit) {
                $minDemerit = $demerit;
                $bestMask = $mask;
                $bestMaskNum = $i;
            }
        }
        return $bestMask;
    }//END mask

    //make 做掩码开关
    private function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) {
        $b = 0;
        $bitMask = array();
        $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;
    }//NED makeMaskNo

    //generate 生成掩码开关
    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;
    }//NED generateMaskNo

    private function mask0($x, $y) { return ($x+$y)&1; }
    private function mask1($x, $y) { return ($y&1); }
    private function mask2($x, $y) { return ($x%3); }
    private function mask3($x, $y) { return ($x+$y)%3; }
    private function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; }
    private function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3; }
    private function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1; }
    private function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1; }
    //write 写信息

    private function writeFormatInformation($width, &$frame, $mask, $level){
        $blacks = 0;
        $format =  $this->getFormatInfo($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;
    }//END writeFormatInformation

    //get 获得格式信息
    private function getFormatInfo($mask, $level){
        if($mask < 0 || $mask > 7) return 0;
        if($level < 0 || $level > 3) return 0;
        return qrcode_table::$formatInfo[$level][$mask];
    }//END getFormatInfo

    //evaluate 评价符号
    private 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) $demerit += 3;
                }
                if(($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;
    }//END evaluateSymbol

    //calc 计算n1 n3模式
    private function calcN1N3($length){
        $demerit = 0;
        for($i=0; $i<$length; ++$i) {
            if($this->runLength[$i] >= 5) {
                $demerit += (3 + ($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))) {
                            $demerit += 40;
                        } else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) {
                            $demerit += 40;
                        }
                    }
                }
            }
        }
        return $demerit;
    }//END calcN1N3
}//END class qrcode_exchange

/*
* QR Code String 文本处理
*
* PHP QR Code is distributed under LGPL 3
* Copyright (C) 2010 Dominik Dzienia
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
class qrcode_string{

    //initial 初始化 public
    function initial($dataStr, $level, $spec){
        $this->dataStr = $dataStr; //Str 字符串
        $this->level = $this->GetGrade($level); //level 识别率
        if($spec < 1 ){
            $spec = 1;
        }elseif($spec > 40 ){
            $spec = 40;
        }
        $this->version = $spec; //version 版本
        $this->splitString();
    }//END initial

    //get 获取当前识别率 lovel
    private function GetGrade($i){
        return qrcode_table::$grade[strtoupper($i)];
    }//END GetGrade

    //----------------------------------------NO: 第四分支 附加 to------------------------------------------

    //set 字符 public
    function setString($input){
        $this->newcode();
        $spec = array(0,0,0,0,0);
        $this->getEccSpec($input->version, $input->level, $spec);

        $this->version = $input->version;
        $this->b1 = $this->rsBlockNum1($spec);
        $this->dataLength = $this->rsDataLength($spec);
        $this->eccLength = $this->rsEccLength($spec);
        $this->ecccode = array_fill(0, $this->eccLength, 0);
        $this->blocks = $this->rsBlockNum($spec);
        $ret = $this->init($spec);
        if($ret < 0)  return null;
        $this->count = 0;
        return $this;
    }//END setString

    //new 新类
    private function newinit(){
        $this->alpha_to = $this->index_of = $this->genpoly = array();   // Generator polynomial
        $this->mm = $this->nn = $this->nroots = $this->fcr = $this->prim = $this->iprim = $this->pad = $this->gfpoly = NULL;
    }//NED newinit

    //new 新类
    private function newcode(){
        $this->ecccode = $this->rsblocks = array(); //of RSblock
        $this->blocks = $this->count = $this->dataLength = $this->eccLength = $this->b1 = NULL;
    }//NED newcode

    //ECC 获得ECC规格 ok
    private function getEccSpec($version, $level, array &$spec){
        if (count($spec) < 5) $spec = array(0,0,0,0,0);
        $b1   = qrcode_table::$eccTable[$version][$level][0];
        $b2   = qrcode_table::$eccTable[$version][$level][1];
        $data = $this->getDataLength($version, $level);
        $ecc  = $this->getECCLength($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;
        }
    }//END getEccSpec

    //get 获取ECC长度
    private function getECCLength($version, $level){
        return qrcode_table::$capacity[$version][3][$level];
    }//END getECCLength

    private function rsBlockNum($spec)     { return $spec[0] + $spec[3]; }
    private function rsEccLength($spec)    { return ($spec[0] + $spec[3]) * $spec[2]; }
    private function rsDataLength($spec)   { return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);    }
    private function rsBlockNum1($spec)    { return $spec[0]; }

    private function rsDataCodes1($spec)   { return $spec[1]; }
    private function rsEccCodes1($spec)    { return $spec[2]; }
    private function rsBlockNum2($spec)    { return $spec[3]; }
    private function rsDataCodes2($spec)   { return $spec[4]; }
    private function rsEccCodes2($spec)    { return $spec[2]; }

    //init 初始init
    private function init(array $spec){
        $this->items = array();
        $dl = $this->rsDataCodes1($spec);
        $el = $this->rsEccCodes1($spec);
        $rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
        $blockNo = 0;
        $dataPos = 0;
        $eccPos = 0;
        for($i=0; $i<$this->rsBlockNum1($spec); ++$i) {
            $ecc = array_slice($this->ecccode,$eccPos);
            $this->rsblocks[$blockNo] = $this->qrrsblock($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($this->rsBlockNum2($spec) == 0) return 0;
        $dl = $this->rsDataCodes2($spec);
        $el = $this->rsEccCodes2($spec);
        $rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
        if($rs == NULL) return -1;
        for($i=0; $i<$this->rsBlockNum2($spec); ++$i) {
            $ecc = array_slice($this->ecccode,$eccPos);
            $this->rsblocks[$blockNo] = $this->qrrsblock($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;
    }//END init

    //get 获取带吗 public
    function getCode(){
        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;
    }//END get Code

    //init RS
    private function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad){
        foreach($this->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 = $this->init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
        array_unshift($this->items, $rs);
        return $rs;
    }//END init_rs

    //init RS字符
    private function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad){
        $rs = null;
        // Check parameter ranges
        if($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 qrcode_string();
        $rs->newinit();
        $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;
        }
        $rs->genpoly = array_fill(0, $nroots+1, 0);
        $rs->fcr = $fcr;
        $rs->prim = $prim;
        $rs->nroots = $nroots;
        $rs->gfpoly = $gfpoly;
        for($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;
    }//END init_rs_char

    //modnn
    private function modnn($x){
        while ($x >= $this->nn) {
            $x -= $this->nn;
            $x = ($x >> $this->mm) + ($x & $this->nn);
        }
        return $x;
    }//END modnn

    //qrrsblock RSB锁
    private function qrrsblock($dl, $data, $el, &$ecc, $rs){
        $qrcode = new qrcode_string();
        $rs->encode_rs_char($data, $ecc);
        $qrcode->dataLength = $dl;
        $qrcode->data = $data;
        $qrcode->eccLength = $el;
        $qrcode->ecc = $ecc;
        return $qrcode;
    }//END qrrsblock

    //encode 编码RS字符
    private 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 = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);
                for($j=1;$j<$NROOTS;++$j) {
                    $parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS-$j])];
                }
            }
            array_shift($parity);
            if($feedback != $A0) {
                array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
            } else {
                array_push($parity, 0);
            }
        }
    }//END encode_rs_char

    //----------------------------------------NO: 第三分支 流系列 to------------------------------------------

    //get 得到字节流 public
    function getByteStream(){
        $bstream = $this->getBitStream();
        if($bstream == null) return null;
        return $bstream->toByte();
    }// END getByteStream

    //get  编码流
    private function getBitStream(){
        $bstream = $this->mergeBitStream();
        if($bstream == null) return null;
        $ret = $this->appendPaddingBit($bstream);
        if($ret < 0) return null;
        return $bstream;
    }//END getBitStream

    //to 字节
    private 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;
    }// toByte

    //merge 合并流
    private function mergeBitStream(){
        if($this->convertData() < 0) return null;
        $bstream = new qrcode_string();
        $bstream->data = array();
        foreach($this->items as $item){
            $ret = $bstream->append_size($item->bstream);
            if($ret < 0) return null;
        }
        return $bstream;
    }//END mergeBitStream

    //size 数组数量
    private function size(){
        return count($this->data);
    }//END size

    //append 追加
    private function append($mode, $size, $data){
        try {
            $entry = new qrcode_string();
            $entry->data = array();
            $entry->assignment($mode, $size, $data);
            $this->items[] = $entry;
            return 0;
        } catch (\Exception $e){
            return -1;
        }
    }//END append

    //size 追加size
    private function append_size($arg){
        if (is_null($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;
    }//END append_size

    //QRinputItem 赋值
    private function assignment($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(!$this->check($mode, $size, $setData)){
            //ERR::\Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));
            return null;
        }
        $this->mode = $mode;
        $this->size = $size;
        $this->data = $setData;
        $this->bstream = $bstream;
        return $this;
    }//END assignment

    //check  检查
    private function check($mode, $size, $data){
        if($size <= 0) return false;
        switch($mode) {
            case 0: return $this->checkModeNum($size, $data);   break;
            case 1: return $this->checkModeAn($size, $data);    break;
            // case 3: return self::checkModeKanji($size, $data); break;
            case 2: return true; break;
            case 4: return true; break;
            default: break;
        }
        return false;
    }//END check

    //check 检查数模式
    private 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;
    }//END checkModeNum

    //check 检查单模式
    private function checkModeAn($size, $data){
        for($i=0; $i<$size; ++$i) {
            if ($this->lookAnTable(ord($data[$i])) == -1) return false;
        }
        return true;
    }//END checkModeAn

    //append 附加填充位
    private function appendPaddingBit($bstream){
        $bits = $bstream->size();
        $maxwords = $this->getDataLength($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 qrcode_string();
        $padding->data = array();
        $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 = $bstream->append_size($padding);
        return $ret;
    }//END appendPaddingBit

            //get 得到数据长度
    private function getDataLength($version, $level){
        return qrcode_table::$capacity[$version][1] - qrcode_table::$capacity[$version][3][$level];
    }//END getDataLength

    //appendNum 追加数
    private function appendNum($bits, $num){
        if ($bits == 0)  return 0;
        $bstream = new qrcode_string();
        $bstream->data = array();
        $b = $this->newFromNum($bits, $num);
        if(is_null($b)) return -1;
        $ret = $this->append_size($b);
        unset($b);
        return $ret;
    }//END appendNum

    //new  新数
    private function newFromNum($bits, $num){
        $bstream = new qrcode_string();
        $bstream->data = array();
        $bstream->allocate($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;
    }//END newFromNum

    //allocate 分配
    private function allocate($setLength){
        $this ->data = array_fill(0, $setLength, 0);
        return 0;
    }//END allocate

    //append 追加字节
    private function appendBytes($size, $data){
        if ($size == 0) return 0;
        $bstream = new qrcode_string();
        $bstream->data = array();
        $b = $bstream->newFromBytes($size, $data);
        if(is_null($b)) return -1;
        $ret = $this->append_size($b);
        unset($b);
        return $ret;
    }//END appendBytes

    //new 新的字节
    private function newFromBytes($size, $data){
        $bstream = new qrcode_string();
        $bstream->data = array();
        $bstream->allocate($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;
    }//END newFromBytes

    //set 设置版本
    private function setVersion($version){
        $this->version = $version;
    }//END setVersion

    //convert 转换数据
    private function convertData(){
        $ver = $this->estimateVersion();
        if($ver > $this->version) $this->setVersion($ver);
        for(;;){//to 死循环 break 条件停止
                $bits = $this->createBitStream();
                if($bits < 0) return -1;
                $ver = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
                if($ver < 0){
                    //ERR::newerr( __LINE__ ,'ERROR: WRONG VERSION');
                    return -1;
                } else if($ver > $this->version){
                    $this->setVersion($ver);
                } else {
                    break;
                }
            }
            return 0;
    }//END convertData

    //estimate 估计版本
    private function estimateVersion(){
        $version = 0;
        $prev = 0;
        do {
            $prev = $version;
            $bits = $this->estimateBitStreamSize($prev);
            $version = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
            if ($version < 0){
                return -1;
            }
        } while ($version > $prev);
        return $version;
    }//END estimateVersion

    //create 创建流
    private function createBitStream(){
        $total = 0;
        foreach($this->items as $item){
            $bits = $item->encodeBitStream($this->version);
            if($bits < 0) return -1;
            $total += $bits;
        }
        return $total;
    }//END createBitStream

    //encodeBitStream 编码比特流
    private function encodeBitStream($version){
        try {
            unset($this->bstream);
            $words = $this->maximumWords($this->mode, $version);
            if($this->size > $words){
                $st1 = $st2 = new qrcode_string();
                $st1->data = $st2->data = array();
                $st1->assignment($this->mode, $words, $this->data);
                $st2->assignment($this->mode, $this->size - $words, array_slice($this->data, $words));
                $st1->encodeBitStream($version);
                $st2->encodeBitStream($version);
                $this->bstream = new qrcode_string();
                $this->bstream->data = array();
                $this->append_size($st1->bstream);
                $this->append_size($st2->bstream);
                unset($st1);
                unset($st2);
            } else {
                $ret = 0;
                switch($this->mode){
                    case 0: $ret = $this->encodeModeNum($version);    break;
                    case 1: $ret = $this->encodeModeAn($version);    break;
                    case 2: $ret = $this->encodeMode8($version);    break;
                //--------------------------  case 3: $ret = $this->encodeModeKanji($version);break; ----------
                    case 4: $ret = $this->encodeModeStructure();    break;
                    default: break;
                }
                if($ret < 0) return -1;
            }
            return $this->size();
        } catch (\Exception $e){
            return -1;
        }
    }//END encodeBitStream

    //maximum 最大词
    private function maximumWords($mode, $version){
        if($mode == 4) return 3;
        if($version <= 9){
            $l = 0;
        } else if($version <= 26){
            $l = 1;
        } else {
            $l = 2;
        }
        $bits = qrcode_table::$lengthTableBits[$mode][$l];
        $words = (1 << $bits) - 1;
        if($mode == 3) $words *= 2; // the number of bytes is required
        return $words;
    }//END maximumWords

    //encode 数编码模式
    private function encodeModeNum($version){
        try {
            $words = (int)($this->size / 3);
            $bstream = new qrcode_string();
            $bstream->data = array();
            $val = 0x1;
            $bstream->appendNum(4, $val);
            $bstream->appendNum($this->lengthIndicator(0, $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'));
                $bstream->appendNum(10, $val);
            }
            if($this->size - $words * 3 == 1){
                $val = ord($this->data[$words*3]) - ord('0');
                $bstream->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'));
                $bstream->appendNum(7, $val);
            }
            $this->bstream = $bstream;
            return 0;

        } catch (\Exception $e){
            return -1;
        }
    }//END encodeModeNum

    //encode 编码单方式
    private function encodeModeAn($version){
            try {
                $words = (int)($this->size / 2);
                $bstream = new qrcode_string();
                $bstream->data = array();
                $bstream->appendNum(4, 0x02);
                $bstream->appendNum($this->lengthIndicator(1, $version), $this->size);
                for($i=0; $i<$words; ++$i) {
                    $val  = (int)$this->lookAnTable(ord($this->data[$i*2  ])) * 45;
                    $val += (int)$this->lookAnTable(ord($this->data[$i*2+1]));
                    $bstream->appendNum(11, $val);
                }
                if($this->size & 1) {
                    $val = $this->lookAnTable(ord($this->data[$words * 2]));
                    $bstream->appendNum(6, $val);
                }
                $this->bstream = $bstream;
                return 0;
            } catch (\Exception $e) {
                return -1;
            }
    }//END encodeModeAn

    //encode 编码8模式
    private function encodeMode8($version){
        try {
            $bstream = new qrcode_string();
            $bstream->data = array();
            $bstream->appendNum(4, 0x4);
            $bstream->appendNum($this->lengthIndicator(2, $version), $this->size);
            for($i=0; $i<$this->size; ++$i) {
                $bstream->appendNum(8, ord($this->data[$i]));
            }
            $this->bstream = $bstream;
            return 0;
        } catch (\Exception $e) {
            return -1;
        }
    }//END encodeMode8

    //encode 编码结构模式
    private function encodeModeStructure(){
        try {
            $bstream = new qrcode_string();
            $bstream->data = array();
            $bstream->appendNum(4, 0x03);
            $bstream->appendNum(4, ord($this->data[1]) - 1);
            $bstream->appendNum(4, ord($this->data[0]) - 1);
            $bstream->appendNum(8, ord($this->data[2]));
            $this->bstream = $bstream;
            return 0;
        } catch (\Exception $e) {
            return -1;
        }
    }// END encodeModeStructure

    //get  获得最小版本
    private function getMinimumVersion($size, $level){
        for($i=1; $i<= 40; ++$i){
            $words  = qrcode_table::$capacity[$i][1] - qrcode_table::$capacity[$i][3][$level];
            if($words >= $size) return $i;
        }
        return -1;
    }//END getMinimumVersion

    //estimate 估计比特流大小
    private function estimateBitStreamSize($version){
        $bits = 0;
        foreach($this->items as $item){
            $bits += $item->estimateBitStreamSizeOfEntry($version);
        }
        return $bits;
    }//END estimateBitStreamSize

    //estimate 输入估计比特流大小
    private function estimateBitStreamSizeOfEntry($version){
        $bits = 0;
        if($version == 0) $version = 1;
        switch($this->mode){
            case 0: $bits = $this->estimateBitsModeNum($this->size); break;
            case 1: $bits = $this->estimateBitsModeAn($this->size); break;
            case 2: $bits = $this->estimateBitsMode8($this->size); break;
            // --------------- case 3: $bits = $this->estimateBitsModeKanji($this->size); break;
            case 4:    return 20;
            default: return 0;
        }
        $l = $this->lengthIndicator($this->mode, $version);
        $m = 1 << $l;
        $num = (int)(($this->size + $m - 1) / $m);
        $bits += $num * (4 + $l);
        return $bits;
    }//END estimateBitStreamSizeOfEntry

    //----------------------------------------NO: 第二分支 字符串系列 to------------------------------------------

    //split 拆分字符串
    private function splitString(){
        while (strlen($this->dataStr) > 0){
            if($this->dataStr == '') return 0;
            $mode = $this->identifyMode(0);
            switch ($mode){
                case 0: $length = $this->eatNum(); break;
                case 1: $length = $this->eatAn(); break;
                //----------------  case 3: $length = $this->eatKanji(); break;
                default: $length = $this->eat8(); break;
            }
            if($length == 0) return 0;
            if($length < 0)  return -1;
            $this->dataStr = substr($this->dataStr, $length);
        }
        $items = $this->items;
        unset($this->dataStr);//delete
        return $items;
    }//END splitString

    //Num  数字
    private function eatNum(){
        $ln = $this->lengthIndicator(0, $this->version);
        $p = 0;
        while($this->isdigitat($this->dataStr, $p)){
            ++$p;
        }
        $run = $p;
        $mode = $this->identifyMode($p);
        if($mode == 2){
            $dif = $this->estimateBitsModeNum($run) + 4 + $ln
                + $this->estimateBitsMode8(1)         // + 4 + l8
                - $this->estimateBitsMode8($run + 1); // - 4 - l8
            if($dif > 0) return $this->eat8();
        }
        if($mode == 1){
            $dif = $this->estimateBitsModeNum($run) + 4 + $ln
                + $this->estimateBitsModeAn(1)        // + 4 + la
                - $this->estimateBitsModeAn($run + 1);// - 4 - la
            if($dif > 0) return $this->eatAn();
        }
        $ret = $this->append(0, $run, str_split($this->dataStr));
        if($ret < 0) return -1;
        return $run;
    }//END eatNum

    //An 单个
    private function eatAn(){
        $la = $this->lengthIndicator(1,  $this->version);
        $ln = $this->lengthIndicator(0, $this->version);
        $p = 0;
        while($this->isalnumat($this->dataStr, $p)){
            if($this->isdigitat($this->dataStr, $p)){
                $q = $p;
                while($this->isdigitat($this->dataStr, $q)){
                    ++$q;
                }
                $dif = $this->estimateBitsModeAn($p) // + 4 + la
                    + $this->estimateBitsModeNum($q - $p) + 4 + $ln
                    - $this->estimateBitsModeAn($q); // - 4 - la
                if($dif < 0){
                    break;
                } else {
                    $p = $q;
                }
            } else {
                ++$p;
            }
        }
        $run = $p;
        if(!$this->isalnumat($this->dataStr, $p)){
            $dif = $this->estimateBitsModeAn($run) + 4 + $la
                + $this->estimateBitsMode8(1) // + 4 + l8
                - $this->estimateBitsMode8($run + 1); // - 4 - l8
            if($dif > 0) return $this->eat8();
        }
        $ret = $this->append(1, $run, str_split($this->dataStr));
        if($ret < 0) return -1;
        return $run;
    }//END eatAn

    /*----------------------------------
    //Kanji  汉字
    function eatKanji(){
        $p = 0;
        while($this->identifyMode($p) == 3){
            $p += 2;
        }
        $ret = $this->append(3, $p, str_split($this->dataStr));
        if($ret < 0) return -1;
        return $run;
    }//END eatKanji
    ------------------------------ */

    //eat8
    private function eat8(){
        $la = $this->lengthIndicator(1, $this->version);
        $ln = $this->lengthIndicator(0, $this->version);
        $p = 1;
        $dataStrLen = strlen($this->dataStr);
        while($p < $dataStrLen){
            $mode = $this->identifyMode($p);
            if($mode == 3) break; //xxxxxxx
            if($mode == 0){
                $q = $p;
                while($this->isdigitat($this->dataStr, $q)){
                    ++$q;
                }
                $dif = $this->estimateBitsMode8($p) // + 4 + l8
                    + $this->estimateBitsModeNum($q - $p) + 4 + $ln
                    - $this->estimateBitsMode8($q); // - 4 - l8
                if($dif < 0){
                    break;
                } else {
                    $p = $q;
                }
            } else if($mode == 1){
                $q = $p;
                while($this->isalnumat($this->dataStr, $q)){
                    ++$q;
                }
                $dif = $this->estimateBitsMode8($p)  // + 4 + l8
                    + $this->estimateBitsModeAn($q - $p) + 4 + $la
                    - $this->estimateBitsMode8($q); // - 4 - l8
                if($dif < 0){
                    break;
                } else {
                    $p = $q;
                }
            } else {
                ++$p;
            }
        }
        $run = $p;
        $ret = $this->append(2, $run, str_split($this->dataStr));
        if($ret < 0) return -1;
        return $run;
    }//END eat8

    //length 长度指示
    private function lengthIndicator($mode, $version){
        if ($mode == 4) return 0;
        if ($version <= 9){
            $l = 0;
        } else if ($version <= 26){
            $l = 1;
        } else {
            $l = 2;
        }
        return qrcode_table::$lengthTableBits[$mode][$l];
    }//END lengthIndicator

    //estimate 估算位数 数字
    private 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;
    }//END estimateBitsModeNum

    //estimate 估算位数 模式8
    private function estimateBitsMode8($size){
        return $size * 8;
    }//END estimateBitsMode8

    /*-------------------------
    //estimate 估计比特模式汉字
    function estimateBitsModeKanji($size){
            return (int)(($size / 2) * 13);
    }//END estimate
    -------------------------------------------*/

    //estimate 估算位数 单个
    private function estimateBitsModeAn($size){
        $w = (int)($size / 2);
        $bits = $w * 11;
        if($size & 1) $bits += 6;
        return $bits;
    }//END estimateBitsModeAn

    //----------------------------------------NO: 第一分支 模式系列 to------------------------------------------

    //identify 匹配ID模式
    private function identifyMode($pos){
        if($pos >= strlen($this->dataStr)) return -1;
        $c = $this->dataStr[$pos];
        if($this->isdigitat($this->dataStr, $pos)){
            return 0;
        }else if($this->isalnumat($this->dataStr, $pos)){
            return 1;
        }
        /*----------------------------------------------
        else if($this->modeHint == 3){ // modeHint =0/2  不可能是3
            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 3;
                }
            }
        }
        ---------------------------------- */
        return 2;
    }//END identifyMode

    //isdigitat  是否数字
    private function isdigitat($str, $pos){
            if ($pos >= strlen($str)) return false;
            return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
    }//END isdigitat

    //isalnumat  是否
    private function isalnumat($str, $pos){
            if ($pos >= strlen($str)) return false;
            return ($this->lookAnTable(ord($str[$pos])) >= 0);
    }//END isalnumat

    //Table  查询表
    private function lookAnTable($c){
            return (($c > 127) ? -1 : qrcode_table::$anTable[$c]);
    }//END lookAnTable

}//END class qrcode_string

/*
 * QR Code Table 表
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
class qrcode_table{

    //Info 格式信息
    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)
    );

    //ECC表
    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
        );

    //length 长度表位
    public static $lengthTableBits = array(array(10, 12, 14), array( 9, 11, 13), array( 8, 16, 16), array( 8, 10, 12));

    //grade 识别等级
    public static $grade = array('L'=> 0, 'M'=> 1, 'Q'=> 2,'H'=> 3);

    //an 单一表
    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);

    //versionPattern 版本模式表
    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);

    //Pattern 排列方式表
    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

    //capacity 容量
    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

}//END class qrcode_table

/*
  * QR Code Pattern 40种模式
  * PHP QR Code is distributed under LGPL 3
  * Copyright (C) 2010 Dominik Dzienia
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
class qrcode_pattern{
        public $frames = array();

    //get 获得宽度 public
    function getWidth($version){
        return qrcode_table::$capacity[$version][0];
    }//END getWidth

    //new 新框架 public
    function newFrame($version){
        if($version < 1 || $version > 40) return null;
        if(!isset($this->frames[$version])) $this->frames[$version] = $this->createFrame($version);
        if(is_null($this->frames[$version])) return null;
        return $this->frames[$version];
    }//END newFrame

    //create 创建框架
    private function createFrame($version){
        $width = qrcode_table::$capacity[$version][0];
        $frameLine = str_repeat ("\0", $width);
        $frame = array_fill(0, $width, $frameLine);
        // Finder pattern
        $this->putFinderPattern($frame, 0, 0);
        $this->putFinderPattern($frame, $width - 7, 0);
        $this->putFinderPattern($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);
        $this->set($frame, 0, 7, $setPattern);
        $this->set($frame, $width-8, 7, $setPattern);
        $this->set($frame, 0, $width - 8, $setPattern);
        // Format info
        $setPattern = str_repeat("\x84", 9);
        $this->set($frame, 0, 8, $setPattern);
        $this->set($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
        $this->putAlignmentPattern($version, $frame, $width);
        // Version information
        if($version >= 7){
            $vinf =  $this->getVersionPattern($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;
    }//END createFrame

    //get 获得版本模式
    private function getVersionPattern($version){
        if($version < 7 || $version > 40){
            return 0;
        }else{
            return qrcode_table::$versionPattern[$version -7];
        }
    } //END getVersionPattern

    //put 搜索模式
    private 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){
            $this->set($frame, $ox, $oy+$y, $finder[$y]);
        }
    } //END putFinderPattern

    //put 排列方式
    private function putAlignmentPattern($version, &$frame, $width){
        if($version < 2) return;
        $d = qrcode_table::$alignmentPattern[$version][1] - qrcode_table::$alignmentPattern[$version][0];
        if($d < 0){
            $w = 2;
        } else {
            $w = (int)(($width - qrcode_table::$alignmentPattern[$version][0]) / $d + 2);
        }
        if($w * $w - 3 == 1){
            $x = qrcode_table::$alignmentPattern[$version][0];
            $y = qrcode_table::$alignmentPattern[$version][0];
            $this->putAlignmentMarker($frame, $x, $y);
            return;
        }
        $cx = qrcode_table::$alignmentPattern[$version][0];
        for($x=1; $x<$w - 1; ++$x){
            $this->putAlignmentMarker($frame, 6, $cx);
            $this->putAlignmentMarker($frame, $cx,  6);
            $cx += $d;
        }
        $cy = qrcode_table::$alignmentPattern[$version][0];
        for($y=0; $y<$w-1; ++$y){
            $cx = qrcode_table::$alignmentPattern[$version][0];
            for($x=0; $x<$w-1; ++$x){
                $this->putAlignmentMarker($frame, $cx, $cy);
                $cx += $d;
            }
            $cy += $d;
        }
    } //END putAlignmentPattern

    //put 对准标记
    private 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){
            $this->set($frame, $xStart, $yStart+$y, $finder[$y]);
        }
    } //END putAlignmentMarker

    //set 填入数据
    private 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));
    } //END set
}//END class qrcode_pattern