#21059 [Opn->Bgs]: Serialization of objects with references is redundant

[milan]

 ID:               21059
 User updated by:  [EMAIL PROTECTED]
 Reported By:      [EMAIL PROTECTED]
-Status:           Open
+Status:           Bogus
-Bug Type:         Scripting Engine problem
+Bug Type:         Class/Object related
 Operating System: Windows XP, Linux
 PHP Version:      4.2.3
 New Comment:

hello! i found out that THIS IS NOT A BUG. this is how objects work.
when using the = operator, the object is copied and the references
inside the object still point to the old object.

SORRY!


Previous Comments:
------------------------------------------------------------------------

[2002-12-17 12:00:07] [EMAIL PROTECTED]

here's the output of the script:
http://maldini.dyndns.org/~milan/bug.php

------------------------------------------------------------------------

[2002-12-16 20:23:58] [EMAIL PROTECTED]

<?PHP

class A
{
        var $Text;
        var $Parent;
        
        function A(&$parent, $s)
        {
                $this->Text = $s;
                $this->Parent = &$parent;
        }
}

class B
{
        var $Child;
        
        function B()
        {
                $this->Child =& new A($this, "Hello");
        }
}

class C
{
        var $Child;
        
        function C()
        {
                $this->Child = new A($this, "Hello");
        }
}


echo "<pre>\n\n";

$b= new B();
$s = serialize($b);
echo "$s\n" . strlen($s) . "\n";

$s = serialize(&$b);
echo "$s\n" . strlen($s) . "\n";

$b=& new B();
$s = serialize($b);
echo "$s\n" . strlen($s) . "\n";

$s = serialize(&$b);
echo "$s\n" . strlen($s) . "\n";

$c= new C();
$s = serialize($c);
echo "$s\n" . strlen($s) . "\n";

$c=& new C();
$s = serialize(&$c);
echo "$s\n" . strlen($s) . "\n";


echo "</pre>";

?>

-------cut-----------

hello! i tried this script both on windows and linux with PHP 4.2.3
installed. I saw, that the serialized code could be highly redundant,
depending on serializing the object or it's refference. there's also a
problem around the new constructor, or i guess, the problem might be at
copying objects with the '=' operator...


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Edit this bug report at http://bugs.php.net/?id=21059&edit=1