This is my .vimrc file. It will get update since UpdateCTags function for some reason breaks in some cases...

.vimrc

"mark trailing whitespaces

hi link localWhitespaceError Error
au Syntax * syn match localWhitespaceError /\(\zs\%#\|\s\)\+$/ display
au Syntax * syn match localWhitespaceError / \+\ze\t/ display
highlight WhitespaceEOL ctermbg=red guibg=red
match WhitespaceEOL /\s\+$/

"change tabs for 4 spaces
set tabstop=4
set shiftwidth=4
set expandtab

" tags
set tags=./tags;~/tags.telexfree

"php autocomplete
autocmd FileType php set omnifunc=phpcomplete#CompletePHP

" Remap code completion to Ctrl+Space {{{2
inoremap <Nul> <C-x><C-o>

" line number
set number

" NERDTree Toggle
map <C-n> :NERDTreeToggle<CR>


" ctags update
autocmd VimEnter *.php call UpdateCTags()

" pathogen
execute pathogen#infect()

function! UpdateCTags()
  echom "Indexing files..."
  redraw | execute "!sh $HOME/update_ctags.sh 2> /dev/null &" | echom
endfun

Tilango demais!