My .vimrc to alternate between WordPress, Drupal, HTML and Javascript coding (always work in progress)

.vimrc

"set shiftwidth=2
"set expandtab
set nowrapscan
set autoindent
set smarttab

" Wordpress
" set autoindent
" set cindent
" "set shiftwidth=8
" set noexpandtab
" set nowrapscan
" set smarttab
"
autocmd Filetype php setlocal shiftwidth=8
autocmd Filetype html setlocal shiftwidth=2
autocmd Filetype javascript setlocal shiftwidth=2

" Try this one
"autocmd FileType php setlocal omnifunc=phpcomplete#CompletePHP autoindent shiftwidth=8 softtabstop=4 tabstop=4 noexpandtab

"set foldmethod=indent

filetype on
filetype plugin on
colorscheme desert

function! DoPrettyXML()
  " save the filetype so we can restore it later
  let l:origft = &ft
  set ft=
  " delete the xml header if it exists. This will
  " permit us to surround the document with fake tags
  " without creating invalid xml.
  1s/<?xml .*?>//e
  " insert fake tags around the entire document.
  " This will permit us to pretty-format excerpts of
  " XML that may contain multiple top-level elements.
  0put ='<PrettyXML>'
  $put ='</PrettyXML>'
  silent %!xmllint --format -
  " xmllint will insert an <?xml?> header. it's easy enough to delete
  " if you don't want it.
  " delete the fake tags
  2d
  $d
  " restore the 'normal' indentation, which is one extra level
  " too deep due to the extra tags we wrapped around the document.
  silent %<
  " back to home
  1
  " restore the filetype
  exe "set ft=" . l:origft
endfunction
command! PrettyXML call DoPrettyXML()