安装 Composer 前确定系统中有 PHP
Composer 中文网地址 https://www.phpcomposer.com/
# 查看PHP版本号
php -v
下载 Composer
php -r "copy('https://install.phpcomposer.com/installer', 'composer-setup.php');"
php composer-setup.php
php -r "unlink('composer-setup.php');"
Composer添加到全局
sudo mv composer.phar /usr/local/bin/composer
Composer更新
# 覆盖系统中的Composer文件
https://install.phpcomposer.com/composer.phar
Composer使用国内镜像
composer config -g repo.packagist composer https://packagist.phpcomposer.com