I'm probably missing something simple but I'm unable to get redirects working for files with a .php extension. Other files, whether they have .htm or .html extensions redirect fine. I thought this had to do with the existing wordpress rewrite rules but deleting them changed nothing.
I'm working in a beta directory that is protected (monthlyreview.org/_beta01). The files don't even exist in this directory, they are in monthlyreview.org but this shouldn't matter according to the documentation (+ the .htm redirects work fine).
What is it about the .php extension that is causing the problem? Any help is much appreciated.
P.S. I've messed with the options quite a bit to no avail. And I've also searched the documentation.