Bug #67363 [Opn]: Unserialize corrupts data

Edit report at https://bugs.php.net/bug.php?id=67363&edit=1 ID: 67363 Updated by: nikic@php.net Reported by: mg at artigo dot pl Summary: Unserialize corrupts data Status: Open Type: Bug Package: Variables related Operating System: Irrelavant PHP Version: Irrelevant Block user comment: N Private report: N New Comment: @laszlokorte: That is most likely bug #66085, which is fixed in PHP 7.0 (but not 5.6). Previous Comments: ------------------------------------------------------------------------ [2017-01-07 17:45:03] php at laszlokorte dot de Not sure if this is the correct issue but I came across some problem with serialize/unserialize. (php-5.6.14) I have created a gist to reproduce it: https://gist.github.com/laszlokorte/3948f40873346cc1fd9b8c11ab06ae04 The problem is that if an object contains a another object as child in multiple places that child does not get (un)serialized correctly. Not just that the identity of the multiple occurrences is not preserved but the object is not unserialized correctly at all. It's easier to understand by looking at gist. ------------------------------------------------------------------------ [2017-01-01 13:36:14] mg at artigo dot pl Maybe I should add that the issue was present for sure without opcache and it was not the case of shared memory, because we could repeat it any time, on any day with the same result and same corruption. ------------------------------------------------------------------------ [2017-01-01 13:31:19] mg at artigo dot pl Dear Nikita, I wish you a Happy New Year with lots of happiness and joy. It has been so long since the issue was reported, that we managed to implement some workarounds in the meantime and we do not encounter it anymore. That said, if I encounter it again, I will open another issue, ok? Thanks, Marcin ------------------------------------------------------------------------ [2017-01-01 12:44:29] nikic@php.net Is someone still encountering this problem in PHP >= 5.6? If so, could you please specify whether you use opcache? If you do, can you check whether you get a reproducible crash if you set opcache.protect_memory=1? ------------------------------------------------------------------------ [2014-06-27 11:25:35] mg at artigo dot pl 3 more: "ticketshop-kilometer-bank" => "ticketshop-kilomfter-(NUL)ank" "ticketshop-promo-spar-holiday" => "ticketshop-promo.spar(NUL)holiday" "ticketshop-promo-weekend" => "ticketshop-promo.week(NUL)nd" ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=67363 -- Edit this bug report at https://bugs.php.net/bug.php?id=67363&edit=1