预定义常量
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Ciphers

OPENSSL_CIPHER_RC2_40 (integer)
OPENSSL_CIPHER_RC2_128 (integer)
OPENSSL_CIPHER_RC2_64 (integer)
OPENSSL_CIPHER_DES (integer)
OPENSSL_CIPHER_3DES (integer)

Note:

These constants were added in 4.3.0.

OPENSSL_CIPHER_AES_128_CBC (integer)
OPENSSL_CIPHER_AES_192_CBC (integer)
OPENSSL_CIPHER_AES_256_CBC (integer)

Note:

These constants were added in 5.4.0.


预定义常量
在线手册:中文 英文
PHP手册