Php/docs/openssl.padding
From Get docs
Padding flags for asymmetric encryption
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)