#25975 [NEW]: PHP 5 object references don't survive serialization

[reiersol at online dot no]

From:             reiersol at online dot no
Operating system: Linux RedHat 9.0
PHP version:      5CVS-2003-10-24 (dev)
PHP Bug Type:     Session related
Bug description:  PHP 5 object references don't survive serialization

Description:
------------
Object references inside PHP5 objects are not preserved through
serialize/unserialize like traditional PHP4 references. This means they
cannot be used in session-based applications.

Reproduce code:
---------------
class Bar {}
class Foo {
    var $v1;
    var $v2;
    function Foo() {
        $this->v1 = new Bar;
        $this->v2 = $this->v1;
    }
}

$f = new Foo;
var_dump($f);
$g = unserialize(serialize($f));
var_dump($g);
print $s1;


Expected result:
----------------
This is what I get if I use $this->v2 = &this->$v1 instead of $this->v2 =
$this->v1:

object(foo)#1 (2) {
  ["v1"]=>
  &object(bar)#2 (0) {
  }
  ["v2"]=>
  &object(bar)#2 (0) {
  }
}
object(foo)#3 (2) {
  ["v1"]=>
  &object(bar)#4 (0) {
  }
  ["v2"]=>
  &object(bar)#4 (0) {
  }
}

Actual result:
--------------
object(foo)#1 (2) {
  ["v1"]=>
  object(bar)#2 (0) {
  }
  ["v2"]=>
  object(bar)#2 (0) {
  }
}
object(foo)#3 (2) {
  ["v1"]=>
  object(bar)#4 (0) {
  }
  ["v2"]=>
  object(bar)#5 (0) {
  }
}


-- 
Edit bug report at http://bugs.php.net/?id=25975&edit=1
-- 
Try a CVS snapshot (php4):  http://bugs.php.net/fix.php?id=25975&r=trysnapshot4
Try a CVS snapshot (php5):  http://bugs.php.net/fix.php?id=25975&r=trysnapshot5
Fixed in CVS:               http://bugs.php.net/fix.php?id=25975&r=fixedcvs
Fixed in release:           http://bugs.php.net/fix.php?id=25975&r=alreadyfixed
Need backtrace:             http://bugs.php.net/fix.php?id=25975&r=needtrace
Try newer version:          http://bugs.php.net/fix.php?id=25975&r=oldversion
Not developer issue:        http://bugs.php.net/fix.php?id=25975&r=support
Expected behavior:          http://bugs.php.net/fix.php?id=25975&r=notwrong
Not enough info:            http://bugs.php.net/fix.php?id=25975&r=notenoughinfo
Submitted twice:            http://bugs.php.net/fix.php?id=25975&r=submittedtwice
register_globals:           http://bugs.php.net/fix.php?id=25975&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=25975&r=php3
Daylight Savings:           http://bugs.php.net/fix.php?id=25975&r=dst
IIS Stability:              http://bugs.php.net/fix.php?id=25975&r=isapi
Install GNU Sed:            http://bugs.php.net/fix.php?id=25975&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=25975&r=float