PHP生成一張含有二維碼的圖片（文章末尾附程式碼下載連結）

PHP生成一張圖片用到的類有QRcode,QRencode ,QRtools , QRimage這四個類是主要的。
主導類：QRcode
輔助類：QRencode, QRimage ,QRtools .
請看下圖， 直接貼原始碼！！！

1、直接呼叫函式（引數賦值，返回圖片）；

//QRcode
public 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、轉碼過程，進行工廠模式轉化；

//QRencode
public 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、記錄過程資訊

//QRencode
public function encodePNG($intext, $outfile = false, $saveandprint=false) 
{
    // echo "run Qrencode::encodePNG....<br/>";
    try {

        ob_start();
        $tab = $this->encode($intext);
        $err = ob_get_contents();   //獲取物件內容
        ob_end_clean();             //清除

        if ($err != '')
            QRtools::log($outfile, $err);  //記錄錯誤

        $maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($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 $e) {
        //記錄資訊
        QRtools::log($outfile, $e->getMessage());
    }
}

4、生成二維碼

//QRencode
public 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、輸出圖片

//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);
   }

這是主要的程式碼，全部程式碼稍後上傳！
下載地址：http://download.csdn.net/detail/u013703963/9694960