composer require endroid/qr-codeCopy

use Endroid\QrCode\QrCode;

$qrCode = new QrCode('Life is too short to be generating QR codes');

header('Content-Type: '.$qrCode->getContentType());
echo $qrCode->writeString();
exit(); //需加上这行 不然会乱码Copy

composer require khanamiryan/qrcode-detector-decoderCopy

use Zxing\QrReader;

$qrcode = new QrReader('path/to_image');
$text = $qrcode->text(); //return decoded text from QR CodeCopy

pip install qrcodeCopy

import qrcode

# 二维码内容
data = "https://www.baidu.com"
# 生成二维码
img = qrcode.make(data=data)
# 直接显示二维码
img.show()
# 保存二维码为文件
# img.save("baidu.jpg")Copy

pip install zxingCopy

import zxing

reader = zxing.BarCodeReader()
barcode = reader.decode("baidu.jpg")
print(barcode.parsed)Copy

<script src="https://cdn.bootcss.com/jquery.qrcode/1.0/jquery.qrcode.min.js"></script>Copy

<div id="qrcode"></div>Copy

jquery('#qrcode').qrcode("this plugin is great");
jquery('#qrcode').qrcode({width: 64,height: 64,text: "size doesn't matter"}); //自定义二维码大小Copy