Bug #68889 [Com]: Serialization issue on DateTime objects by using PHP 5.4.35-0+deb7u2

Edit report at https://bugs.php.net/bug.php?id=68889&edit=1 ID: 68889 Comment by: adam dot conway at carus dot com Reported by: loic dot cotonea at sogeti dot com Summary: Serialization issue on DateTime objects by using PHP 5.4.35-0+deb7u2 Status: Open Type: Bug Package: Reflection related Operating System: Debian Wheezy PHP Version: 5.4.36 Block user comment: N Private report: N New Comment: Just had this with PHP 5.4.45 on Centos 6.5. From session_start() Previous Comments: ------------------------------------------------------------------------ [2015-04-29 11:51:06] intercity at massiveimpact dot ch In mycase https://github.com/symfony/symfony/issues/3691#issuecomment-9831914 helped me. I had to add the format to the serialize like so: public function serialize() { return \serialize(array( $this->myDateTimeObj->format('Y-m-d H:i:s'), ------------------------------------------------------------------------ [2015-01-22 14:47:30] loic dot cotonea at sogeti dot com Description: ------------ On the Debian Wheezy distribution, since the last update of PHP5 to the version 5.4.35-0+deb7u2, the serialization of DateTime seems to be broken. The problem occurs periodically and is reproducible with difficulties. In my test environment, the problem occurs when I want to read data that are stored into the Redis Server. Examples: During the authentication, when the problem occurs, the stack trace is : [{"message":"Error: Invalid serialization data for DateTime object in \/var\/www\/XXXX\/front\/vendor\/symfony\/symfony\/src\/Symfony\/Component\/Security\/Core\/Authentication\/Token\/AbstractToken.php line 163","class":"Symfony\\Component\\Debug\\Exception\\FatalErrorException","trace":[{"namespace":"","short_class":"","class":"","type":"","function":"","file":"\/var\/www\/XXXX\/front\/vendor\/symfony\/symfony\/src\/Symfony\/Component\/Security\/Core\/Authentication\/Token\/AbstractToken.php","line":163,"args":[]}]}] Another example during data retrieval from cache: {"message":"Error: Invalid serialization data for DateTime object in \/var\/www\/XXXX\/front\/src\/XXXX\/APIBundle\/Service\/YYYYService.php line 144","class":"Symfony\\Component\\Debug\\Exception\\FatalErrorException","trace":[{"namespace":"","short_class":"","class":"","type":"","function":"","file":"\/var\/www\/XXXX\/front\/src\/XXXX\/APIBundle\/Service\/YYYYService.php","line":144,"args":[]}]}] I've found a recent bug report in the EZPublish project that seems to be built on Symfony 2 components: https://jira.ez.no/browse/EZP-23713. Attached files to this issue are interesting because we have a valid and an invalid DateTime serialization. Then I've downgraded my Debian Wheezy PHP5 package to this version : 5.4.4-14+deb7u14 , and the problem doesn't exists. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=68889&edit=1