$crypt = new Crypt();
$key = ".";
$text = '12345x67';
$encrypt = $crypt->encryptBase64($text, $key);
echo ($crypt->decryptBase64($encrypt, $key));
echo var_dump($crypt->decryptBase64($encrypt, $key));
the first line is 12345x67
but the second line is 12345x67������������������������'
(length=32) why?