mcrypt_module_is_block_mode Returns if the specified mode outputs blocks or not php函数


mcrypt_module_is_block_mode

(PHP 4 >= 4.0.2, PHP 5)

mcrypt_module_is_block_modeReturns 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

The mode to check.

lib_dir

The optional lib_dir parameter 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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