I have the following options in my .config/nvim/init.vim:
set tabstop=4
set shiftwidth=4
set expandtab
set ai
set smartindent
filetype on
filetype plugin on
filetype indent on
So, the indentation engine should work on all files, but it does not.
When I edit my config file for example, :set ai returns: autoindent and :set si returns: smartindent.
But when I run the same commands on a php file they return:
noautoindent
nosmartindent
EDIT:
The file that was overriding my config is:
/usr/share/nvim/runtime/indent/php.vim
It's the default php indent file.