启用 OpenSSL 扩展并不意味着它配置正确.

Having the OpenSSL extension enabled does not mean it is configured correctly.

无法验证 getcomposer.org 的证书.这意味着要么一些中间人服务器混淆了您的请求，要么您以某种方式没有配置默认 CA 授权集.您的服务器运营商可以告诉您更多信息.

It fails to validate the certificate for getcomposer.org. That means either some man-in-the-middle server messes with your request or you somehow did not configure the set of default CA Authorities. Your server operator can tell you more.