PHP生成条形码

首先找到强大的开源资料，在barcode官网下载barcodegen.1d-php5.v5.0.1.zip版本，然后解压文件放到你的Apache服务器的根目录下。

$text = $_GET['code'];
        
        require_once('./barcodegen/BCGFontFile.php');
        require_once('./barcodegen/BCGColor.php');
        require_once('./barcodegen/BCGDrawing.php');
        require_once('./barcodegen/BCGcode128.barcode.php');
        $font = new BCGFontFile('./barcodegen/font/Arial.ttf', 18);
        
        $color_black = new BCGColor(0, 0, 0);
        $color_white = new BCGColor(255, 255, 255);
        
        $drawException = null;
        try {
            $code = new BCGcode128();
            $code->setScale(2); // Resolution
            $code->setThickness(30); // Thickness
            $code->setForegroundColor($color_black); // Color of bars
            $code->setBackgroundColor($color_white); // Color of spaces
            $code->setFont($font); // Font (or 0)
            $code->parse($text); // Text
        } catch(Exception $exception) {
            $drawException = $exception;
        }
        
        
        $drawing = new BCGDrawing('', $color_white);
        if($drawException) {
            $drawing->drawException($drawException);
        } else {
            $drawing->setBarcode($code);
            $drawing->draw();
        }
        header('Content-Type: image/png');
        header('Content-Disposition: inline; filename="barcode.png"');
        $drawing->finish(BCGDrawing::IMG_FORMAT_PNG);

参考 http://www.cnblogs.com/ForEvErNoME/archive/2012/04/21/2460944.html