PHP生成一张含有二维码的图片（文章末尾附代码下载链接）

PHP生成一张图片用到的类有QRcode,QRencode ,QRtools , QRimage这四个类是主要的。
主导类：QRcode
辅助类：QRencode, QRimage ,QRtools .
请看下图， 直接贴源码！！！

1、直接调用函数（参数赋值，返回图片）；

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

2、转码过程，进行工厂模式转化；

//QRencodepublic static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4){    // echo "run Qrencode::factory....<br/>";    $enc = new QRencode();    $enc->size = $size;    $enc->margin = $margin;        switch ($level.'') {        case '0':        case '1':        case '2':        case '3':                $enc->level = $level;            break;        case 'l':        case 'L':                $enc->level = QR_ECLEVEL_L;            break;        case 'm':        case 'M':                $enc->level = QR_ECLEVEL_M;            break;        case 'q':        case 'Q':                $enc->level = QR_ECLEVEL_Q;            break;        case 'h':        case 'H':                $enc->level = QR_ECLEVEL_H;            break;    }        return $enc;}

3、记录过程信息

//QRencodepublic function encodePNG($intext, $outfile = false, $saveandprint=false) {    // echo "run Qrencode::encodePNG....<br/>";    try {        ob_start();        $tab = $this->encode($intext);        $err = ob_get_contents();   //获取对象内容        ob_end_clean();             //清除        if ($err != '')            QRtools::log($outfile, $err);  //记录错误        $maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));        // echo "run Qrencode::maxSize....".$maxSize."<br/>".QR_PNG_MAXIMUM_SIZE."<br/>";        QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);    } catch (Exception $e) {        //记录信息        QRtools::log($outfile, $e->getMessage());    }}

4、生成二维码

//QRencodepublic function encode($intext, $outfile = false) {     //echo "run Qrencode::encode....<br/>";    $code = new QRcode();    if($this->eightbit) {        $code->encodeString8bit($intext, $this->version, $this->level);    } else {        $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);    }    // QRtools::markTime('after_encode');    $binarized = QRtools::binarize($code->data);    if ($outfile!== false) {        file_put_contents($outfile, join("\n", $binarized));    }    return $binarized;}

5、输出图片

//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);   }

这是主要的代码，全部代码稍后上传！
下载地址：http://download.csdn.net/detail/u013703963/9694960