mcrypt_module_is_block_algorithm

(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)

mcrypt_module_is_block_algorithm — This function checks whether the specified algorithm is a block algorithm

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This function has been DEPRECATED as of PHP 7.1.0 and REMOVED as of PHP 7.2.0. Relying on this function is highly discouraged.

mcrypt_module_is_block_algorithm(string $algorithm, string $lib_dir = ?): bool

This function returns true if the specified algorithm is a block algorithm, or false if it is a stream one.

algorithm: The algorithm to check.
lib_dir: The optional lib_dir parameter can contain the location where the algorithm module is on the system.

This function returns true if the specified algorithm is a block algorithm, or false if it is a stream one.

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