Can‘t see “php“ files on your server, and you're using Filezilla?”
Search the help files/forums at wordpress.org/com. If you’re still stumped, try this:In Filezilla, click on view/filename filters/Shift-Click Disable All, thenClick only on “configuration files” in both panels (remote and local host)Click Apply, and you should see your files! 
mm.. interesting.