Bug #69210 [NEW]: serialize function return corrupted data when sleep has non-string values

From: Date: Tue, 10 Mar 2015 03:59:35 +0000
Subject: Bug #69210 [NEW]: serialize function return corrupted data when sleep has non-string values
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-191276@lists.php.net to get a copy of this message
From:             jrbasso at gmail dot com
Operating system: Any
PHP version:      5.6.6
Package:          *General Issues
Bug Type:         Bug
Bug description:serialize function return corrupted data when sleep has non-string values

Description:
------------
When serializing an object that has a sleep method and this method
returns a non-string value the value generated by serialize is corrupted
and can't be unserialized.

It works fine with values that are strings but not attribute (see
http://3v4l.org/Fprda), but it doesn't with non-string
values (see
http://3v4l.org/81nem or the test script below).

HHVM works fine with non-strings. I wrote a patch that makes the PHP to
works the same way (patch attached and available on
https://github.com/php/php-src/pull/1057).

Test script:
---------------
<?php

class C {
	public $a = true;

	public function __sleep() {
		return ['a', 1];
	}
}

$a = new C;

$s = serialize($a);
var_dump($s);
var_dump(unserialize($s));

Expected result:
----------------
Notice: serialize(): "1" returned as member variable from __sleep() but
does not exist in /in/81nem on line 13
string(30) "O:1:"C":2:{s:1:"a";b:1;i:1;N;}"
object(C)#2 (2) {
  ["a"]=>
  bool(true)
  ["1"]=>
  NULL
}

Actual result:
--------------
Notice: serialize(): __sleep should return an array only containing the
names of instance-variables to serialize. in /in/81nem on line 13
string(26) "O:1:"C":2:{s:1:"a";b:1;N;}"

Notice: unserialize(): Error at offset 25 of 26 bytes in /in/81nem on
line 15
bool(false)

-- 
Edit bug report at https://bugs.php.net/bug.php?id=69210&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=69210&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=69210&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=69210&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=69210&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=69210&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=69210&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=69210&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=69210&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=69210&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=69210&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=69210&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=69210&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=69210&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=69210&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=69210&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=69210&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=69210&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=69210&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=69210&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=69210&r=mysqlcfg



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