#20676 [Opn]: Reinitialization of a reference

[alex_boyer]

 ID:               20676
 User updated by:  [EMAIL PROTECTED]
 Reported By:      [EMAIL PROTECTED]
 Status:           Open
 Bug Type:         Variables related
 Operating System: All
 PHP Version:      4.2.3
 New Comment:

i thought that PHP count references on data before destroys it. This is
not the case. This is why $GLOBALS['ref'] is null isn't it ?


Previous Comments:
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[2002-11-27 09:22:51] [EMAIL PROTECTED]

I try to keep reference on all instances of a class. Even, unserialized
one.

<?php
class A {
    var $x=1;
    
    function __wakeup(){
        $GLOBALS['ref'] =& $this;
    }
}


function set(){
    //Serialize information
    $a =& new A();
    $a->x=2;
    $data = serialize($a);
    
    //Unserialize
    $b =& unserialize($data); // i try without '&'
    $result= $b === $GLOBALS['ref']; // $result == true;    
    echo "VALUE IN SET: {$b->x} \n"; // Echo 2
}

set();
echo "VALUE OUT SET: {$GLOBALS['ref']->x}\n"; //echo nothing,
$GLOBALS['ref'] is now NULL !
?>

I have read all docs, my eyes burns me but i really cannot understand.
I look in database too. 

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


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Edit this bug report at http://bugs.php.net/?id=20676&edit=1