mcrypt_cfb
(PHP 4, PHP 5)
mcrypt_cfb — Encrypt/decrypt data in CFB mode
Description
string mcrypt_cfb
( int $cipher
, string $key
, string $data
, int $mode
, string $iv
)
string mcrypt_cfb
( string $cipher
, string $key
, string $data
, int $mode
[, string $iv
] )
The first prototype is when linked against libmcrypt 2.2.x, the second when linked against libmcrypt 2.4.x or higher. The mode should be either MCRYPT_ENCRYPT or MCRYPT_DECRYPT.
This function should not be used anymore, see mcrypt_generic() and mdecrypt_generic() for replacements.