composer require simplesoftwareio/simple-qrcode 1.3.*
在 config/app.php/providers中 注册服务提供者:SimpleSoftwareIO\QrCode\QrCodeServiceProvider::class
同样在 config/app.php 添加 QrCode 门面:‘QrCode‘ => SimpleSoftwareIO\QrCode\Facades\QrCode::class
引用类:
use SimpleSoftwareIO\QrCode\Facades\QrCode;
return QrCode::encoding(‘UTF-8‘)->size(100)->generate(‘测试,生成二维码‘);

原文:https://www.cnblogs.com/yaoliuyang/p/12751387.html