composer更改阿里云镜像地址

composer config -gl

阿里云

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

中国镜像

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

 腾讯云

composer config -g repo.packagist composer https://mirrors.cloud.tencent.com/composer/

composer 忽略版本加载文件：composer install --ignore-platform-reqs