fixed in r54641.

• Bug 18251 has been marked as a duplicate of this bug. ***

This also affect the 1.15 branch as I was seeing this error in my 1.15.1 install. I implemented the fix mentioned and it seems to have fixed the problem.

(In reply to comment #3)

This also affect the 1.15 branch as I was seeing this error in my 1.15.1
install. I implemented the fix mentioned and it seems to have fixed the
problem.

This issue has been fixed on trunk, and is not serious enough to backport to 1.15 (it's just a PHP warning). Reclosing.

tim wrote:

I am on 1.15.1. I grabbed the fixed file (SpecialRecentchangeslinked.php), but now I have a different error:

PHP Fatal error: Call to undefined method DatabaseMysql::unionQueries() in C:\inetpub\wwwroot\MediaWiki\includes\specials\SpecialRecentchangeslinked.php on line 163

Is there another file to go with the patch?

Of course, if you take one single file from the future version, it may require things introduced to other files since 1.15. But if you copy Database.php and DatabaseMysql.php to fix this warning, they may require newer GlobalFunctions and DefaultSettings, and so on, until you've dragged over whole trunk. Please just wait for 1.16 release.

tim wrote:

OK, sorry. I saw "patch" and assumed that was the entire fix. In my dev environment, we consider a "patch" to consist of all fixes for an issue. It seems there's a different definition here.

(In reply to comment #7)

OK, sorry. I saw "patch" and assumed that was the entire fix. In my dev
environment, we consider a "patch" to consist of all fixes for an issue. It
seems there's a different definition here.

We use the same definition, but the difference between SpecialRecentchanges.php in 1.15.1 and the same file in trunk consists of much more than just this one patch, and some of these differences rely on changes in other files.