syntax on
set expandtab
set number
set autoindent
set smartindent
set shiftwidth=4
set tabstop=4
set showmatch
set showcmd
set laststatus=2
set statusline=%<%f\ %m%r%h%w%{'['.(&fenc!=''?&fenc:&enc).']['.&ff.']'}%=%l,%c%V%8P
set encoding=utf-8
set fileencoding=utf-8
set ignorecase
set smartcase
set wrapscan
set list
set listchars=tab:>\ ,extends:<
set smarttab
set whichwrap=b,s,h,l,<,>,[,]
set backspace=indent,eol,start
set wildmenu
set wildmode=list:full
autocmd FileType php :set dictionary=~/.vim/dict/PHP.dict
set complete+=k
set tags=./tagsmap
set tags+=tagsmap;
set tags+=./**/tagsmap
" "
au BufRead,BufNew * match ZenkakuSpace / /
highlight ZenkakuSpace term=underline cterm=underline ctermfg=Blue guifg=Blue
if &encoding !=# 'utf-8'
set encoding=japan
set fileencoding=japan
endif
if has('iconv')
let s:enc_euc = 'euc-jp'
let s:enc_jis = 'iso-2022-jp'
if iconv("\x87\x64\x87\x6a", 'cp932', 'eucjp-ms') ==# "\xad\xc5\xad\xcb"
let s:enc_euc = 'eucjp-ms'
let s:enc_jis = 'iso-2022-jp-3'
elseif iconv("\x87\x64\x87\x6a", 'cp932', 'euc-jisx0213') ==# "\xad\xc5\xad\xcb"
let s:enc_euc = 'euc-jisx0213'
let s:enc_jis = 'iso-2022-jp-3'
endif
if &encoding ==# 'utf-8'
let s:fileencodings_default = &fileencodings
let &fileencodings = s:enc_jis .','. s:enc_euc .',cp932'
let &fileencodings = &fileencodings .','. s:fileencodings_default
unlet s:fileencodings_default
else
let &fileencodings = &fileencodings .','. s:enc_jis
set fileencodings+=utf-8,ucs-2le,ucs-2
if &encoding =~# '^\(euc-jp\|euc-jisx0213\|eucjp-ms\)$'
set fileencodings+=cp932
set fileencodings-=euc-jp
set fileencodings-=euc-jisx0213
set fileencodings-=eucjp-ms
let &encoding = s:enc_euc
let &fileencoding = s:enc_euc
else
let &fileencodings = &fileencodings .','. s:enc_euc
endif
endif
unlet s:enc_euc
unlet s:enc_jis
endif
if has('autocmd')
function! AU_ReCheck_FENC()
if &fileencoding =~# 'iso-2022-jp' && search("[^\x01-\x7e]", 'n') == 0
let &fileencoding=&encoding
endif
endfunction
autocmd BufReadPost * call AU_ReCheck_FENC()
endif
set fileformats=unix,dos,mac
if exists('&ambiwidth')
set ambiwidth=double
endif
追記
linuxでデフォルトeuc-jpの環境で自動エンコーディングしましたが
たまに間違えます。