From: sysadmin at interexa dot de
Operating system: linux
PHP version: 5.4.20
Package: *General Issues
Bug Type: Bug
Bug description:unserialize fails with object which is referenced multiple times
Description:
------------
Running the testscript fails. The second reference to Object A is null
after unserialize.
This happens in PHP 5.4.x as well as PHP 5.5.4.
Maybe this bug is related to bug 65724.
Test script:
---------------
<?php
class myObjA {}
class myObjB {
public $attrA;
public $attrB;
}
class myObjC {
public $attrC;
public $attrD;
}
class myList {
private $_serialized;
private $_obj;
public function __construct($obj)
{
$this->_obj = $obj;
$this->_serialized = serialize($this->_obj);
}
public function get()
{
return unserialize($this->_serialized);
}
public function __sleep()
{
$this->_serialized = serialize($this->_obj);
return array(
"\0" . __CLASS__ . "\0_serialized",
);
}
}
echo "SCRIPT START" . PHP_EOL;
$objA = new myObjA();
$objB = new myObjB();
$objC = new myObjC();
$objB->attrA = new ArrayIterator();
$objB->attrB = $objA;
$objC->attrC = $objB;
$objC->attrD = $objA;
$list = new myList($objC);
echo 'check ' . check($list->get()) . PHP_EOL;
file_put_contents('serialize.dmp', serialize($list));
echo "start serialize/unserialize" . PHP_EOL;
$newList = unserialize(serialize($list));
echo "finish serialize/unserialize" . PHP_EOL;
//after unserialize the property myObjC::attrD is null instead of
expected object
echo 'check ' . check($newList->get()) . PHP_EOL;
echo "SCRIPT END" . PHP_EOL ;
function check(myObjC $obj) {
if (!is_object($obj->attrC)) {
return 'failed (myObjC::attrC => ' . var_export($obj->attrC,
true) . ')';
}
if (!is_object($obj->attrD)) {
return 'failed (myObjC::attrD => ' . var_export($obj->attrD,
true) . ')';
}
return 'successful';
}
Expected result:
----------------
SCRIPT START
check successful
start serialize/unserialize
finish serialize/unserialize
check successful
SCRIPT END
Actual result:
--------------
SCRIPT START
check successful
start serialize/unserialize
finish serialize/unserialize
check failed (myObjC::attrD => NULL)
SCRIPT END
--
Edit bug report at https://bugs.php.net/bug.php?id=65806&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=65806&r=trysnapshot54
Try a snapshot (PHP 5.5):
https://bugs.php.net/fix.php?id=65806&r=trysnapshot55
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=65806&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=65806&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=65806&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=65806&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=65806&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=65806&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=65806&r=support
Expected behavior: https://bugs.php.net/fix.php?id=65806&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=65806&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=65806&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=65806&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=65806&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=65806&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=65806&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=65806&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=65806&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=65806&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=65806&r=mysqlcfg
