from:https://blog.csdn.net/zsy16111/article/details/124427715
下载composer.phar文件
| 1 | curl -sS https://getcomposer.org/installer | php |
将composer.phar移动到环境变量中并且更名为composer
| 1 | mv composer.phar /usr/local/bin/composer |
使用国内镜像
| 1 | composer config -g repo.packagist composer https://packagist.phpcomposer.com |
| 1 | composer -v |