Awesome

deoplete-phpactor

Phpactor integration for deoplete.nvim

Installation

Using vim-plug

Plug 'Shougo/deoplete.nvim'
Plug 'phpactor/phpactor' ,  {'do': 'composer install', 'for': 'php'}
Plug 'kristijanhusak/deoplete-phpactor'

If you are using a custom setting for sources in deoplete don't forget:

call deoplete#custom#option('sources', {'php' : ['omni', 'phpactor', 'ultisnips', 'buffer']})

Add the phpactor source is important or phpactor itself is not running.