Returns if the specified mode outputs blocks or not


(PHP 4 >= 4.0.2, PHP 5)

mcrypt_module_is_block_modeReturns if the specified mode outputs blocks or not

Описание

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).

Список параметров

mode

Одна из констант MCRYPT_MODE_modename, либо одна из следующих строк: "ecb", "cbc", "cfb", "ofb", "nofb" и "stream".

lib_dir

The optional lib_dir parameter can contain the location where the algorithm module is on the system.

Возвращаемые значения

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).