mcrypt_module_get_supported_key_sizes

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

    mcrypt_module_get_supported_key_sizes — Returns an array with the supported keysizes of the opened algorithm

    Warning

    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.

    Description

    mcrypt_module_get_supported_key_sizes(string $algorithm, string $lib_dir = ?): array

    Returns an array with the key sizes supported by the specified algorithm. If it returns an empty array then all key sizes between 1 and mcrypt_module_get_algo_key_size() are supported by the algorithm.

    Parameters

    algorithm

    The algorithm to be used.

    lib_dir

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

    Return Values

    Returns an array with the key sizes supported by the specified algorithm. If it returns an empty array then all key sizes between 1 and mcrypt_module_get_algo_key_size() are supported by the algorithm.

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