【PHP】扩展 qrcode 二维码生成 **一、执行命令安装** composer require dh2y/think-qrcode **二、require安装** thinkphp5.0 安装 "require": { "dh2y/think-qrcode":"1.*" }, thinkphp5.1 安装 "require": { "dh2y/think-qrcode":"2.*" }, **三、autoload psr-4标准安装** a) 进入vendor/dh2y目录 (没有dh2y目录 mkdir dh2y) b) git clone c) 修改 git clone下来的项目名称为think-qrcode d) 添加下面配置 "autoload": { "psr-4": { "dh2y\\qrcode\\": "vendor/dh2y/think-qrcode/src" } }, e) php composer.phar update **添加配置文件** return [ 'cache_dir' => 'uploads'.DS.'qrcode', //缓存地址 'background'=> 'static/image/icon_cover.png' //背景图 ]; **使用方法** $code = new QRcode(); $code_path = $code->png($register_url) //生成二维码 ->logo('static/image/avatar-m.jpg') //生成logo二维码 ->background(180,500) //给二维码加上背景 ->text($role,20,['center',740],'#ff4351') //添加文字水印 ->text($nick_name,20,['center',780],'#000000') ->getPath(); //获取二维码生成的地址