composer安装
作者：互联网
1.下载
curl -sS https://getcomposer.org/installer | php
2.配置全局composer
mv composer.phar /usr/local/bin/composer
3.切换国内源
composer config -g repo.packagist composer https://packagist.phpcomposer.com
4.使用composer更新项目框架
composer update
标签：composer,getcomposer,phpcomposer,https,packagist,installer,安装 来源： https://www.cnblogs.com/zuikeol/p/11713214.html