composer安装

一、安装

下载安装

sudo curl -sS https://getcomposer.org/installer | php

复制到bin目录全局使用

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

二、切换中国镜像

全局切换

composer config -g repo.packagist composer https://packagist.phpcomposer.com

项目切换

composer config repo.packagist composer https://packagist.phpcomposer.com>

参考：https://pkg.phpcomposer.com/