TYPO3 Core

This also happened in at least TYPO3 3.8, I don't remember about 3.5-3.7. I guess it's not a bug, it's a feature ;)

The bug only occurres after installing the latest PHP Security Update.

As soon aus you downgrade to an older Version the pagetree works fine.
Also the BE User Group has some Problems after the PHP Security Fix.

see Forum Post http://typo3.net/forum/list/list_post//44893/?page=2#pid168689
(german only)

Well, I would say that this is a bug in PHP. Or maybe a default behaviour has been changed due to a security issue - maybe I will look further into this issue tomorrow.

Recently there has been a bug in PHP, I think in 5.1.2. I don't know the impact of this bug anymore, but after an upgrade to 5.1.4 solved the issue. I also remember a bug in PHP that screw up MySQL-databases, in 5.1.3, IIRC. So maybe the PHP-bugtracker already shows this issue?!

btw.: My comment above was nonsense, I just didn't correctly read the description of the issue ;)

Hi,

the collapse Pagetree problem appears also in TYPO version 3.71.

And please take a look , if you can confirm this second "bad" thing
concerning this "update":
In many configuration fields
in the groups-Configuration-page oder user-configurations-page (for example: group-membership-field), there are
suddenly "new entries" with "Invalid value". And its not possible to unmark them.
After downgrade to prior apache2_mod_php4 version everything behave properly again.

The PHP-Patch:

apache2-mod_php4-52923

solves the issue

Closed as this is a PHP bug and not a TYPO3 bug.