(PHP4 >= 4.0.2)
mcrypt_module_is_block_algorithm_mode -- This function returns if the the specified module is a block algorithm or not
Description
bool mcrypt_module_is_block_algorithm_mode (string mode [, string lib_dir])
This function returns TRUE if the mode is for use with block algorithms,
otherwise it returns 0. (eg. 0 for stream, and 1 for cbc, cfb, ofb).
The optional lib_dir parameter can contain
the location where the mode module is on the system.