(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)
mcrypt_enc_get_key_size — ���ش�ģʽ����֧�ֵ����Կ
This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.
$td
) : int���ش�ģʽ����֧�ֵ����Կ�����ֽ�Ϊ��λ��
td������������
���ش�ģʽ����֧�ֵ����Կ�����ֽ�Ϊ��λ��