mcrypt_cbc
Description
string mcrypt_cbc ( int cipher, string key, string data, int mode [, string iv] )string mcrypt_cbc ( 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.