<?php Swoole\Coroutine\Client->getPeerCert(): string|false
When successful, it returns
X509 certificate information, when it fails it returns
Obtain server-side certificate information.
This method can only be used once SSL has been completed and the handshake is successful.
openssl_x509_parse which is provided by the OpenSSL library can be used to parse the certificate information.
You must have installed Swoole using
--enable-openssl for this to work.