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# mcrypt_enc_is_block_algorithm

(PHP 4 >= 4.0.2)

mcrypt_enc_is_block_algorithm -- Checks whether the algorithm of the opened mode is a block algorithm

## Description

``int mcrypt_enc_is_block_algorithm` (resource td)`

This function returns 1 if the algorithm is a block algorithm, or 0 if it is a stream algorithm.

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