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# mcrypt_enc_is_block_algorithm

(PHP 4 >= 4.0.2, PHP 5)

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

## Description

bool mcrypt_enc_is_block_algorithm ( resource td)

This function returns `TRUE` if the algorithm is a block algorithm, or `FALSE` if it is a stream algorithm.

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