mcrypt_enc_get_key_size

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

mcrypt_enc_get_key_size — Returns the maximum supported keysize of the opened mode

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.

function mcrypt_enc_get_key_size(resource $td): int

Gets the maximum supported key size of the algorithm in bytes.

Returns the maximum supported key size of the algorithm in bytes.