Bug #68262 [NEW]: Broken reference across clonned objects

From: Date: Sat, 18 Oct 2014 23:17:39 +0000
Subject: Bug #68262 [NEW]: Broken reference across clonned objects
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-188183@lists.php.net to get a copy of this message 
From:             miloslav dot hula at gmail dot com
Operating system: Linux
PHP version:      master-Git-2014-10-18 (Git)
Package:          Scripting Engine problem
Bug Type:         Bug
Bug description:Broken reference across clonned objects

Description:
------------
Tested on fb85d0322d39d49f37e32df6f68c9769f2cce0e4 (17.10.2014)

Code works on PHP 5.0.0 - 5.6.2 (via http://3v4l.org).

Hard to describe. Test script below is extracted from failing library
test.

Clonned object affects original one by reference in magic __get()
method.

Test script:
---------------
class C
{
    public $p;

    public function &__get($n)
    {
        return $this->p;
    }
}


$first = new C;
$first->p = 'init';

$clone = clone $first;
$clone->p = $first->magic;

$clone = clone $first;
$clone->p = 'foo';

var_dump($first->v);


Expected result:
----------------
string(4) "init"

Actual result:
--------------
string(3) "foo"

-- 
Edit bug report at https://bugs.php.net/bug.php?id=68262&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=68262&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=68262&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=68262&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=68262&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=68262&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=68262&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=68262&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=68262&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=68262&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=68262&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=68262&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=68262&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=68262&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68262&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=68262&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=68262&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=68262&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=68262&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=68262&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=68262&r=mysqlcfg

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