php aes_encrypt

Question

我有一个问题：

Insert into user2 (User_Email,User_Password)Values(AES_ENCRYPT('$email','$this->seed'),AES_ENCRYPT('$password','$this->seed

和

Select AES_DECRYPT('User_Email','$this->seed') as Email, AES_DECRYPT('User_Password','$this->seed') as Password from user2 where User_ID =$id

The table is Innodb
The columns are varbinary(200)
The key is private $seed = 'YourTheBestYourTheBesYourTheBes';

我在数据库中有这个：电子邮件：E -？Y ？ c 密码：2cc37143d1cf0bc9eade4e87121f458e6866dcc0218041bc1a932caf78628b24

我的参数是$ U-＆gt; NewUser（'XXXXX @ gmail.com'，'Mypassword'）;我改变了这些

我的问题是我为返回值返回NULL并且不确定原因。