该镜像源 Packagist / Composer 中国全量镜像 已经使用了好多年了，怎么突然就挂了呢？网上也搜不到它的 停服 消息。

考虑到国内的网络环境，得重新找一个镜像源。

经过一番网罗，笔者最终敲定选用 阿里云 Composer 全量镜像，配置命令：

$ composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/

其他的推荐镜像源：

• 华为云 https://mirrors.huaweicloud.com/repository/php/

次选镜像源：

• 腾讯云 https://mirrors.cloud.tencent.com/composer/
• 上海交通大学https://packagist.mirrors.sjtug.sjtu.edu.cn

列为次选是因为还未支持 Composer2，运行时会有 黄色警告

Composer 2 repository support for https://mirrors.xxx.com/composer has been disabled due to what seems like a misconfiguration. If this is a packagist.org mirror we recommend removing it as Composer 2 handles network operations much faster and should work fine without.

来源：

https://zhuanlan.zhihu.com/p/329062713