ID: 45816
Comment by: gmtfn at yahoo dot com
Reported By: gmtfn at yahoo dot com
Status: Feedback
Bug Type: Session related
Operating System: Linux
PHP Version: 5.2.6
Assigned To: fb-req-jani
New Comment:
register_globals is on on Linux servers and off on Vista. But whatever
its value is, getting a string representation of an object, which
serialization is, shouldn't change the object. It's completely
counterintuitive, and I can't imagine a valid reason for ruining a still
perfectly usable object. It's analogous to changing a variable's type
just because it's been typecasted to something else.
Previous Comments:
------------------------------------------------------------------------
[2008-08-14 17:42:38] [EMAIL PROTECTED]
Check your phpinfo() output that register_globals is Off.
------------------------------------------------------------------------
[2008-08-14 07:48:52] gmtfn at yahoo dot com
line 25, not 26
------------------------------------------------------------------------
[2008-08-14 07:37:54] gmtfn at yahoo dot com
Description:
------------
Calling serialize() on an object whose name is the same as the key
under which it's saved in $_SESSION makes the object unusable (its
methods can't be called.
If I store store a serialized version of the object under a key that's
different from the name of the variable that points to the object, then
everything works fine. If this is by design and must remain this way, I
want to tell you that this is VERY counterintuitive and must be
prominently documented.
I can reproduce this on a Linux server (with PHP 5.2.5 and 5.2.6) but
not on Windows Vista.
Reproduce code:
---------------
<?php
session_start();
ob_start();
class GoodObject {
private $count = 0;
public function doSmth()
{
echo "$this->count <br>";
$this->count++;
}
}
if(!isset($_SESSION['myObj'])) {
$myObj = new GoodObject();
}
else {
$s = $_SESSION['myObj'];
$myObj = unserialize($s);
}
$myObj->doSmth();
$s = serialize($myObj);
$_SESSION['myObj'] = $s;
$myObj->doSmth(); // this fails on the second page load
?>
Expected result:
----------------
Converting an object to a string should not change the object, and the
last statement in this script should output the value of $count.
Actual result:
--------------
On the second load of the page, I get this:
Fatal error: Call to a member function doSmth() on a non-object in
[path to the file] on line 26
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=45816&edit=1
