mcrypt_module_is_block_algorithmmcrypt_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
说明
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).
参数
-
mode -
MCRYPT_MODE_modename常量中的一个，或以下字符串中的一个："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.
返回值
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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