(PHP 4 >= 4.0.2)
mcrypt_enc_is_block_algorithm_mode -- Checks whether the encryption of the opened mode works on blocks
Description
int 
mcrypt_enc_is_block_algorithm_mode ( resource td)
     This function returns 1 if the mode is for use with block algorithms,
     otherwise it returns 0. (eg. 0 for stream, and 1 for cbc, cfb, ofb).