composer
查看当前版本
composer --version or composer -v
更新版本(慎用)
composer selfupdate 或者 composer self-update
回退composer 版本
composer self-update --rollback
清理缓存
composer clearcache
查看Composer配置中的镜像地址:
composer config -gl
修改镜像地址为中国镜像:
composer config -g repo.packagist composer Packagist / Composer
其它镜像
#阿里云
composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/
#腾讯云
composer config -g repo.packagist composer PHP Composer