使用composer安裝錯誤提示：
The "https://packagist.laravel-china.org/packages.json" file could not be downloaded: Peer certificate CN=*.phphub.org' did not match expected CN=packagist.laravel-china.org'
Failed to enable crypto
failed to open stream: operation failed
https://packagist.laravel-china.org could not be fully loaded, package information was loaded from the local cache and may be out of date
按說明是鏡像地址請求出錯，於是去https://packagist.laravel-china.org查看，發現Laravel China在一個月前發了篇文章《Laravel China 鏡像完成歷史使命，將於兩個月后停用》，所以很明白了，你需要換鏡像。
阿里雲 Composer 全量鏡像
Packagist 官方實時同步，推薦使用最新的 Composer 版本。
鏡像類型：全量鏡像
更新時間：1 分鍾
鏡像說明：阿里雲 CDN 加速，更新速度快，推薦使用
全局配置（推薦）
所有項目都會使用該鏡像地址：
composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/
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composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/
取消配置：
composer config -g --unset repos.packagist
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composer config -g --unset repos.packagist
項目配置
僅修改當前工程配置，僅當前工程可使用該鏡像地址：composer config repo.packagist composer https://mirrors.aliyun.com/composer/
取消配置：composer config --unset repos.packagist
調試
composer 命令增加 -vvv 可輸出詳細的信息，命令如下：composer -vvv require alibabacloud/sdk