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

mcrypt_module_get_algo_key_sizeReturns the maximum supported keysize of the opened mode


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_get_algo_key_size(string $algorithm, string $lib_dir = ?): int

Gets the maximum supported keysize of the opened mode.

Elenco dei parametri


The algorithm name.


This optional parameter can contain the location where the mode module is on the system.

Valori restituiti

This function returns the maximum supported key size of the algorithm specified in bytes.

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