PHP8 OpenSSL非对称加密的填充标志
OPENSSL_PKCS1_PADDING
(int)OPENSSL_SSLV23_PADDING
(int)OPENSSL_NO_PADDING
(int)OPENSSL_PKCS1_OAEP_PADDING
(int)OPENSSL_PKCS1_PADDING
(int)OPENSSL_SSLV23_PADDING
(int)OPENSSL_NO_PADDING
(int)OPENSSL_PKCS1_OAEP_PADDING
(int)