mcrypt_module_is_block_mode
(PHP 4 >= 4.0.2, PHP 5)
mcrypt_module_is_block_mode — Returns if the specified mode outputs blocks or not
說明
bool mcrypt_module_is_block_mode
( string
$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).
參數
-
mode -
MCRYPT_MODE_modename常數中的一個，或以下字串中的一個："ecb"，"cbc"，"cfb"，"ofb"，"nofb" 和 "stream"。 -
lib_dir -
The optional
lib_dirparameter can contain the location where the algorithm module is on the system.
回傳值
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).
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