(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
This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.
$td
)Gets the maximum supported key size of the algorithm in bytes.
tdThe encryption descriptor.
Returns the maximum supported key size of the algorithm in bytes.