title: Selectively disabling 'filetype plugin indent' for particular filetypes in Vim 7.3
body: <p>I have vim 7.3, with the setup that's provided with Ubuntu 11.04 by default. My .vimrc looks like the following:</p>
  
  <pre><code>set nocompatible
  set autoindent
  set tabstop=4
  set softtabstop=4
  set shiftwidth=4
  set expandtab
  
  filetype plugin indent on
  let g:omni_sql_no_default_maps = 1 " Stops Omni from grabbing left/right keys
  
  " syntax, colorscheme and status line directives omitted.</code></pre>
  
  <p>How do I selectively disable this indentation for different filetypes (eg. php, phtml, rb)?</p>
  
  <p>So far I've tried <code>autocmd FileType php filetype plugin indent off</code> and a few variants, but I haven't had much luck yet.</p>
  
  <p>(Removing the <code>filetype plugin ...</code> line produces the desired behaviour, but obviously affects all filetypes instead of just a few.)</p>