(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)
mcrypt_enc_get_supported_key_sizes — �����鷽ʽ���ش��㷨��֧�ֵ���Կ����
This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.
$td
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�����ɼ���������ָ�����㷨���ܹ�֧�ֵ���Կ���ȡ� ������㷨֧�ִ� 1 �� mcrypt_enc_get_key_size() ֮�����ⳤ�ȵ���Կ���ؿ����顣
Example #1 mcrypt_enc_get_supported_key_sizes() ����
<?php
$td = mcrypt_module_open('rijndael-256', '', 'ecb', '');
var_dump(mcrypt_enc_get_supported_key_sizes($td));
?>
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array(3) {
[0]=>
int(16)
[1]=>
int(24)
[2]=>
int(32)
}