endroid/qr-code是二维码的外部内容渲染--比如标题 logo 外边距等 -- 也就是logo其实也可以自定义修改 bacon/bacon-qr-code是二维码码点的渲染---具体出什么问题找到对应位置函数进行调试修改即可---可以调试各种各样的二维码，草料二维码有很多的样式参考，具体想要什么样式可以参考着做，比如码点渐变色，码点的形状等（码点的渲染是从左到右，然后一行一行往下渲染，横竖由29个码点区--所以可以具体的区调整（你能拿到二维码的宽高，之后进行计算即可））

vendor\endroid\qr-code\src\Writer\PngWriter.php addMargin()和addLabel() 将上面两个函数中的 背景色的颜色渲染 imagecolorallocate 修改为 imagecolorallocatealpha imageToString（） 将上面函数修改为： ob_start(); //设置标记以在保存 PNG 图像时保存完整的 alpha 通道信息。 imagesavealpha($image, true); imagepng($image); $string = ob_get_clean(); return $string;

码点的渲染函数是：vendor\bacon\bacon-qr-code\src\BaconQrCode\Renderer\Image\Png.php 的 drawBlock() //矩形 --- 默认是矩形 imagefilledrectangle( $this->image, $x, $y, $x + $this->blockSize - 1, $y + $this->blockSize - 1, $this->colors[$colorId] ); 可以修改为： $totalWidth = $this->finalWidth; //总宽度 $totalHeight = $this->finalHeight; //总高度 //椭圆 --- 二维码 横向和纵向 由29个方块组成 间距2 imagefilledellipse ( $this->image, $x+($totalWidth/29)/2-2, //圆点的中心 == 横坐标加上椭圆的半径 -- 横向 $y+($totalHeight/29)/2-2, //圆点的中心 == 横坐标加上椭圆的半径 纵向 ($totalWidth/29)-1,//横坐标加上椭圆的直径-- 横向 --这里要减去1 ($totalHeight/29)-1,//横坐标加上椭圆的直径-- 纵向 $this->colors[$colorId] ); addColor() 定义 == $this->alphaColors[$colorId] ==//其实这个就是定义透明度的背景块 drawBackground() == 在这个函数里 除了增加透明度 你还可以增加背景图片 修改 imagefill($this->image, 0, 0, $this->alphaColors[$colorId]); getByteStream() 函数修改为：---如果要二维码内容区背景透明 就修改 ob_start(); //设置标记以在保存 PNG 图像时保存完整的 alpha 通道信息。 imagesavealpha($this->image, true); imagepng($this->image); return ob_get_clean();

By endroid

This library helps you generate QR codes in a jiffy. Makes use of bacon/bacon-qr-code to generate the matrix and khanamiryan/qrcode-detector-decoder for validating generated QR codes. Further extended with Twig extensions, generation routes, a factory and a Symfony bundle for easy installation and configuration. Different writers are provided to generate the QR code as PNG, SVG, EPS or in binary format.

Use Composer to install the library. Also make sure you have enabled and configured the GD extension if you want to generate images.

If you use a barcode scanner you can have some troubles while reading the generated QR codes. Depending on the encoding you chose you will have an extra amount of data corresponding to the ECI block. Some barcode scanner are not programmed to interpret this block of information. To ensure a maximum compatibility you can use the ISO-8859-1 encoding that is the default encoding used by barcode scanners (if your character set supports it, i.e. no Chinese characters are present).

By default block sizes are rounded to guarantee sharp images and improve readability. However some other rounding variants are available.

The readability of a QR code is primarily determined by the size, the input length, the error correction level and any possible logo over the image so you can tweak these parameters if you are looking for optimal results. You can also check $qrCode->getRoundBlockSize() value to see if block dimensions are rounded so that the image is more sharp and readable. Please note that rounding block size can result in additional padding to compensate for the rounding difference. And finally the encoding (default UTF-8 to support large character sets) can be set to ISO-8859-1 if possible to improve readability.

You can enable the built-in validation reader (disabled by default) by calling setValidateResult(true). This validation reader does not guarantee that the QR code will be readable by all readers but it helps you provide a minimum level of quality. Take note that the validator can consume quite amount of additional resources and it should be installed separately only if you use it.

The endroid/qr-code-bundle integrates the QR code library in Symfony for an even better experience.

Read the bundle documentation for more information.

Version numbers follow the MAJOR.MINOR.PATCH scheme. Backwards compatibility breaking changes will be kept to a minimum but be aware that these can occur. Lock your dependencies for production and test your code when upgrading.

This bundle is under the MIT license. For the full copyright and license information please view the LICENSE file that was distributed with this source code.