#27646 [Opn->Fbk]: Cannot serialize/unserialize non-finite numeric values

ID: 27646 Updated by: helly@php.net Reported By: matthew_kay at ml1 dot net -Status: Open +Status: Feedback Bug Type: Zend Engine 2 problem Operating System: Linux 2.4.22 (Mandrake 9.2) PHP Version: 5.0.0RC1 New Comment: Please try using this CVS snapshot: http://snaps.php.net/php5-latest.tar.gz For Windows: http://snaps.php.net/win32/php5-win32-latest.zip Previous Comments: ------------------------------------------------------------------------ [2004-03-18 21:29:14] matthew_kay at ml1 dot net 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 this bug report at http://bugs.php.net/?id=27646&edit=1