php检测ssl证书匹配,OpenSSL命令行校验SSL/TLS连接检查HTTPS证书配置是否正常

# on a successful verification

# 注意需要指定端口，如果是https协议，默认端口也需要指定端口443

$ openssl s_client -quiet -connect jvt.me:443

depth=2 O = Digital Signature Trust Co., CN = DST Root CA X3

verify return:1

depth=1 C = US, O = Let's Encrypt, CN = Let's Encrypt Authority X3

verify return:1

depth=0 CN = jamietanna.co.uk

verify return:1

# on an unsuccessful verification

$ openssl s_client -quiet -connect keystore.openbanking.org.uk:443

depth=2 C = GB, O = OpenBanking, CN = OpenBanking Root CA

verify error:num=19:self signed certificate in certificate chain

verify return:1

depth=2 C = GB, O = OpenBanking, CN = OpenBanking Root CA

verify return:1

depth=1 C = GB, O = OpenBanking, CN = OpenBanking Issuing CA

verify