#27646 [NEW]: Cannot serialize/unserialize non-finite numeric values
From: matthew_kay at ml1 dot net
Operating system: Linux 2.4.22 (Mandrake 9.2)
PHP version: 5.0.0RC1
PHP Bug Type: Zend Engine 2 problem
Bug description: Cannot serialize/unserialize non-finite numeric values
Description:
------------
It appears that unserialize() does not unserialize
numerics that are "non-finite", such as NAN and INF.
Instead, it simply fails and returns (bool)false.
If a NAN value is encountered anywhere during an
unserialize() (for example, in an array or an object), the
entire operation fails and unserialize will return false.
Reproduce code:
---------------
$testNan = (float)NAN;
var_dump($testNan); //outputs float(NAN)
$testNan2 = unserialize(serialize($testNan));
var_dump($testNan2); //outputs bool(false)
$testInf = (float)INF;
var_dump($testInf); //outputs float(INF)
$testInf2 = unserialize(serialize($testInf));
var_dump($testInf2); //outputs bool(false)
Expected result:
----------------
float(NAN)
float(NAN)
float(INF)
float(INF)
Actual result:
--------------
float(NAN)
bool(false)
float(INF)
bool(false)
--
Edit bug report at http://bugs.php.net/?id=27646&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=27646&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=27646&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=27646&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=27646&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=27646&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=27646&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=27646&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=27646&r=support
Expected behavior: http://bugs.php.net/fix.php?id=27646&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=27646&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=27646&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=27646&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=27646&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=27646&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=27646&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=27646&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=27646&r=float
Thread (3 messages)
- matthew_kay at ml1 dot net