(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)
mcrypt_module_is_block_mode — Returns if the specified mode outputs blocks or not
This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.
$mode
[, string $lib_dir
] ) : bool
This function returns TRUE if the mode outputs blocks of bytes or
FALSE if it outputs just bytes. (e.g. TRUE for cbc and ecb, and
FALSE for cfb and stream).
modeUma das constantes MCRYPT_MODE_modename, ou uma das strings: "ecb", "cbc", "cfb", "ofb", "nofb" ou "stream".
lib_dir
The optional lib_dir parameter can contain the
location where the algorithm module is on the system.
This function returns TRUE if the mode outputs blocks of bytes or
FALSE if it outputs just bytes. (e.g. TRUE for cbc and ecb, and
FALSE for cfb and stream).