OK, maybe this will help. I went all the way back to version 3.1 and did a manual install. It worked. When I tried to upgrade, I got this message:
You cannot update because WordPress 3.4.1 requires PHP version 5.2.4 or higher. You are running version 4.4.9.
So it looks like because the hosting provider is not up to date, it was causing this error.
Kashif456, you might want to check if you have a similar situation.
Hope this was helpful.
I’m having the exact same problem/error with the option.php. I’ve tried several fresh uploads.