I have now tracked down the cause of this. The new php.ini file writes session.save_path as your profile %tmp% path, which on windows is rarely writable by the application. This needs to be changed to something PHP and IIS can use such as c:\windows\temp., while it is being done it is best to reset upload_tmp_dir as well.

Once done and the server rebooted the wiki is back to normal.

Charlie

-----Original Message----- From: Charlie Markwick Sent: 21 November 2007 07:57 To: 'MediaWiki announcements and site admin list' Subject: Problem after upgrading to PHP Version 5.2.5

I have just upgraded my web server from 5.0.2 and now my wiki appears to be broken.

It displays content fine as far as I can tell. However in Firefox when I hut save after editing a page I'm taken to Preview and can't saved the edit whatever I try. When I try the same thing with IE7 just tells me that The page can not be displayed.