If I am coding in PHP and I type out a PHP built-in function (e.g. explode()) vims standard omni-complete would normally provide a function signature in a preview window.
I recently installed a couple of plugins and now the function signature preview doesnt seem to work, is there any way to manually invoke this preview window with function signature?
asked Oct 8, 2015 at 2:07
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1 Answer
In theory you could go to the end of the function and and press <c-x><c-o> if 'completeopt' has menuone set. However this will add an extra paren at the end of the function.
I use the following snippet in my ~/.vim/after/ftplugin/php.vim file:
function! s:PHPQuickMan(word)
if !exists('g:php_builtin_functions')
call phpcomplete#LoadData()
endif
let word = a:word . '('
if !get(b:, 'php_quick_man_color', get(g:, 'php_quick_man_color', 1))
echo word . get(g:php_builtin_functions, word, ' can not be found')
else
let sig = get(g:php_builtin_functions, word, '')
if sig == ''
echohl WarningMsg
echo word . ' can not be found'
echohl None
else
echon word
for part in split(matchstr(sig, '.*\ze|\s\+\w\+$'), '\<')
echohl Directory
let w = matchstr(part, '\v^(int|array|mixed|callable|object|string|bool|void|resource)')
echon w
echohl None
echon strpart(part, len(w))
endfor
echon ") | "
echohl WarningMsg
echon matchstr(sig, '|\s\+\zs\w\+$')
echohl None
endif
endif
endfunction
nnoremap <buffer> K :call <SID>PHPQuickMan(expand('<cword>'))<cr>
This leverages the php's omni-complete database to print out at the bottom of the screen the function signature when you press K on a function.
For more help see:
:h 'completeopt'
:h compl-omni
:h i_CTRL-X_CTRL-O
:h K
:h 'keywordprg'
answered Oct 8, 2015 at 14:22
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awesome, thanks for this! I can get it to work for straight functions, but not for methods, e.g. it doesnt work on
$dbh->prepare($sql)whereas vims builtin omni complete does provide assistance forprepare()- when its called on an object (but wont if its not used in an object context) Commented Oct 8, 2015 at 19:05 -
I should have been more clear it uses Vim builtin omni complete for functions via
g:php_builtin_functions. Commented Oct 8, 2015 at 19:59 -
thats the weird thing, vim's builtin onmi-complete - for methods - does work, but when I invoke the method signature with your snippet it doesnt work. just to repeat: you snippet works fine on builtin functions - its just methods that dont seem to work Commented Oct 9, 2015 at 2:35
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Since the snippet uses
g:php_builtin_functionsit has no support for methods, just functions. Please feel free to improve upon it to work for methods calls Commented Oct 9, 2015 at 14:15