#30674 [Opn]: Unexpected results and core dump with recursive references serializing

ID: 30674 User updated by: fmmarzoa at gmx dot net -Summary: Unexpected results and crashes with recursive references serializing Reported By: fmmarzoa at gmx dot net Status: Open Bug Type: Zend Engine 2 problem Operating System: Linux (probably others) PHP Version: 5.0.2 New Comment: (just changed "crashed" by "core dump" in subject) Previous Comments: ------------------------------------------------------------------------ [2004-11-03 16:29:49] fmmarzoa at gmx dot net Description: ------------ serialize function lost references to itself on an array and produces a segfault in some other circunstances. I send the code with which I've discovered the problem, but Andrey Hristov has also cooked some code based on this that crash the PHP engine. Complete quoted thread with more code samples can be found on the internals list archive: http://marc.theaimsgroup.com/?l=php-dev&m=109949534625983&w=2 Reproduce code: --------------- <pre> <?php $Arr = array(); $Arr['self'] = &$Arr; var_dump ( $Arr ); $serdata = serialize ($Arr); $Arr2 = unserialize ( $serdata ); echo "\n\n"; var_dump ( $Arr2 ); ?> </pre> Complete quoted thread with more code samples, including segfaults, can be found on the internals list archive: http://marc.theaimsgroup.com/?l=php-dev&m=109949534625983&w=2 Expected result: ---------------- array(1) { ["self"]=> array(1) { ["self"]=> *RECURSION* } } array(1) { ["self"]=> array(1) { ["self"]=> *RECURSION* } } Actual result: -------------- array(1) { ["self"]=> array(1) { ["self"]=> *RECURSION* } } array(1) { ["self"]=> array(1) { ["self"]=> NULL } } ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=30674&edit=1