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[2005-01-12 02:15 UTC] kubis at pawouk dot net
Description:
------------
I have found that sometimes if you have an object A as a member of a another object B and your try to store the object B in session AND you are using wddx serializer as default session serializer, after deserialization back from session the object A in member of object B deserializes wrong. While using the standard php serializer, all seems working perfectly.
Reproduce code:
---------------
class Logger {
public $logfile;
public $logtype;
function __construct(){
$this->logfile = '/tmp/user.log';
}
// some logger class implementation
}
class User {
public $logger;
function __construct()
$this->logger = new Logger();
}
function __wakeup(){
$this->logger->logtype .... // you won't find '/tmp/user.log' here, you won't find the $logtype variable at all.
}
Expected result:
----------------
I am expecting that the value of $this->logger->logtype would be the '/tmp/user.log' string; but there is not any value at all, and it seems there is not any member 'logfile' at all. While debugging using Zend studio i have seen that all members of the Logger class have lost their names; there were just some numbers.
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Last updated: Fri Oct 24 21:00:01 2025 UTC |
once more the __wakeup() function; i messed it up: function __wakeup(){ $this->logger->logfile.... // you won't find '/tmp/user.log' here, you won't find the $logtype variable at all. }It seems that the problem appears when the wddx serializer tries to serialize and then deserialize objects with private members; private members are not serialized and the deserialized values of private members are NULL with session.serialize_handler = wddx in php.ini try this and then look at file, in which session data are stored --- session_start(); class Petr { private $priv; public $pub; protected $prot; public $pavel; function __construct() { $this->priv = "private"; $this->pub = "public"; $this->prot = "protected"; $this->pavel = new Pavel(); } } class Pavel { private $priv; public $pub; protected $prot; function __construct() { $this->priv = "private"; $this->pub = "public"; $this->prot = "protected"; } } $petr = new Petr(); $_SESSION['test'] = $petr; --- you will see <wddxPacket version='1.0'><header/><data><struct><var name='test'><struct><var name='php_class_name'><string>Petr</string></var><var name=''><string>private</string></var><var name='pub'><string>public</string></var><var name=''><string>protected</string></var><var name='pavel'><struct><var name='php_class_name'><string>Pavel</string></var><var name=''><string>private</string></var><var name='pub'><string>public</string></var><var name=''><string>protected</string></var></struct></var></struct></var></struct></data></wddxPacket> --- protected and private members are not serialized correctly - only value of variable, nor its name, is serialized