(PHP 4 >= 4.0.2, PHP 5, PHP 7)
mcrypt_module_is_block_mode — Returns if the specified mode outputs blocks or not
$mode
[, string $lib_dir
] )
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).
mode
MCRYPT_MODE_modename
상수 중 하나이거나, 다음 문자열 중 하나: "ecb", "cbc", "cfb", "ofb", "nofb" or "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).