(no version information, might be only in CVS)
hash_final -- Finalize an incremental hash and return resulting digest
contextHashing context returned by hash_init().
raw_outputWhen set to TRUE, outputs raw binary data. Default value (FALSE) outputs lowercase hexits.
Returns a string containing the calculated message digest as lowercase hexits
unless raw_output is set to true in which case the raw
binary representation of the message digest is returned.