PHP:在$ _SESSION中存储'对象'

class User implements Serializable {
    private $name;
    private $email;

    public function __construct($name, $email) {
        $this->name = $name;
        $this->email = $email;
    }

    public function getName() {
        return $this->name;
    }

    public function getEmail() {
        return $this->email;
    }

    public function serialize() {
        return serialize(array(
            'name' => $this->name,
            'email' => $this->email
        ));
    }

    public function unserialize($data) {
        $data = unserialize($data);
        $this->name = $data['name'];
        $this->email = $data['email'];
    }
}

// 创建一个对象
$user = new User('John Doe', 'john.doe@example.com');

// 将对象存储在$_SESSION中
$_SESSION['user'] = $user;

// 从$_SESSION中读取对象
$user = $_SESSION['user'];

// 输出对象的属性
echo $user->getName(); // 输出：John Doe
echo $user->getEmail(); // 输出：john.doe@example.com