我可以在$ _SESSION空间中存储类实例吗？ [英] Can I store a class instance in a $_SESSION space?

问题描述

 类用户{
 
 public $ id; 
 public $ username; 
 public $ password; 
 public $ email; 
 public $ steam; 
 public $ donator; 
 public $ active; 
 
 public function __construct（$ username，$ email，$ password，$ id，$ active，$ donator，$ steam）{
 $ this-> id = $ id; 
 $ this-> username = $ username; 
 $ this-> password = $ password; 
 $ this-> email = $ email; 
 $ this-> steam = $ steam; 
 $ this-> donator = $ donator; 
 $ this-> active = $ active; 
}} 
  

是我的课程（简化）

以下是我的代码：

  $ _ SESSION ['loggedIn'] = $ user; 
  

$ user是用户的类实例

现在这是print_r（$ _ SESSION ['loggedIn']）显示我：

  __PHP_Incomplete_Class Object 
 
 [__PHP_Incomplete_Class_Name] => User 
 [id] => 22 
 [username] => xxxx 
 [password] => xxxx 
 [email ] => xxxx 
 [steam] => 1234567 
 [donator] => 0 
 [活动] => 1 
）
  
 
 
 
其中xxxx是正确的值。
 
 
 
从我的会话检索数据。像这样：$ _SESSION ['loggedIn']  - > username它返回一个null值给我。
解决方案
首先将对象序列化为字符串：
 
 
 
  $ _ SESSION ['user'] = serialize（$ user）;  
 
 
 
和：
 
 
 
  $ user = unserialize（$ _ SESSION ['user' ]）;  
 
 
 
只要确保在反序列化对象之前首先定义类。
 
 Class User{

public $id;
public $username;
public $password;
public $email;
public $steam;
public $donator;
public $active;

public function __construct($username, $email, $password, $id, $active, $donator, $steam){
    $this->id = $id;
    $this->username = $username;
    $this->password = $password;
    $this->email = $email;
    $this->steam = $steam;
    $this->donator = $donator;
    $this->active = $active;
}}
is my class (simplified) 

the following is my code:
$_SESSION['loggedIn'] = $user;
$user is a class instance of User

now this is what print_r($_SESSION['loggedIn']) shows me:
    __PHP_Incomplete_Class Object
(
    [__PHP_Incomplete_Class_Name] => User
    [id] => 22
    [username] => xxxx
    [password] => xxxx
    [email] => xxxx
    [steam] => 1234567
    [donator] => 0
    [active] => 1
)
in which xxxx are values that are correct.

but when i try to retrieve data from my session. like so: "$_SESSION['loggedIn']->username" it returns a null value to me.
解决方案
You must first serialize the object in to a string:

$_SESSION['user'] = serialize($user);

and:

$user = unserialize($_SESSION['user']);

Just make sure that the class is first defined before unserializing the object.

                        
这篇关于我可以在$ _SESSION空间中存储类实例吗？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！