Mcrypt 函数
PHP Manual

mcrypt_module_is_block_algorithm

(PHP 4 >= 4.0.2, PHP 5)

mcrypt_module_is_block_algorithmThis function checks whether the specified algorithm is a block algorithm

说明

bool mcrypt_module_is_block_algorithm ( string $algorithm [, string $lib_dir ] )

This function returns TRUE if the specified algorithm is a block algorithm, or FALSE if it is a stream one.

参数

algorithm

The algorithm 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 specified algorithm is a block algorithm, or FALSE if it is a stream one.


Mcrypt 函数
PHP Manual