mcrypt_module_get_algo_block_size

Returns the blocksize of the specified 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.

int mcrypt_module_get_algo_block_size(string $algorithm, string $lib_dir = ?)

Gets the blocksize of the specified algorithm.

algorithm: The algorithm name.
lib_dir: This optional parameter can contain the location where the mode module is on the system.

Returns the block size of the algorithm specified in bytes.