#31313 [Fbk->Opn]: $this reference is bad during __wakeup

ID: 31313 User updated by: bugs dot php dot net at future dot shiny dot co dot il Reported By: bugs dot php dot net at future dot shiny dot co dot il -Status: Feedback +Status: Open Bug Type: Scripting Engine problem -Operating System: FreeBSD +Operating System: Linux PHP Version: 4.3.10 New Comment: Yes, I can reproduce this with the latest snapshot. No, despite all my attempts, I wasn't able to produce a minimized testcase. Even if I take the session file and run it through unserialize in the same environment, I cannot reproduce this. However, I *can* reliably reproduce this bug in my own environment. From this, I realize that the only solution is for me to debug it myself. I serialize an object, which has a member object. If, during wakeup, I replace that member object (with assignment '=') with another variable of type Object (ANY variable, as long as its type Object), I'd be replacing some other unrelated member variable -- and the variable I'd be trying to replace will remain the same. Any hints at debugging this? Previous Comments: ------------------------------------------------------------------------ [2005-01-17 18:42:15] sniper@php.net Please try using this CVS snapshot: http://snaps.php.net/php4-STABLE-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-STABLE-latest.zip And if you can reproduce it, please come up with simple test case. ------------------------------------------------------------------------ [2004-12-27 18:19:11] bugs dot php dot net at future dot shiny dot co dot il Description: ------------ This is a re-open of Bug #13968. I can still see the same issue happening with PHP 4.3.10. Just like the previous poster (in bug #13968), I cannot reproduce this with simple code. However, the general idea is this: class Base { var $resource = new Resource(); function __wakeup() { // In a saved session, the resource lost relevance, so we reopne it: $this->resource = open_resource(); // <-- this corrupts Thing's another_member } }; class Child extends Base { }; class Thing { var $member; var $another_member; // <-- when wakes up, this is equal to the Resource we open in Base's __wakeup. function Thing() { $this->member = new Child(); $this->another_member = 12345; } }; ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=31313&edit=1