Php/docs/function.mcrypt-module-is-block-algorithm

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mcrypt_module_is_block_algorithm

(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)

mcrypt_module_is_block_algorithmThis function checks whether the specified algorithm is a block algorithm


Warning This function has been DEPRECATED as of PHP 7.1.0 and REMOVED as of PHP 7.2.0. Relying on this function is highly discouraged.


Description

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

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


Parameters

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


Return Values

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