Ubuntu下安装composer及配置

1.下载最新composer

 wget -c https://getcomposer.org/composer.phar 

2.可执行权限

 chmod u+x composer.phar 

3.放置到安装文件夹

mv composer.phar /usr/local/bin/composer

4.执行命令，出现欢迎界面即成功。

composer

 5.版本更新

composer selfupdate

 6.全局配置依赖包国内镜像地址

composer config -g repositories.packagist composer http://packagist.phpcomposer.com

 7.安装依赖包（guzzlehttp）

composer require guzzlehttp/guzzle