How to auto-complete PHP code in Vim

Vim can auto-complete syntax for some of the most popular programming languages, but it's disabled by default.

While in command mode, enter the following.

:set omnifunc=phpcomplete#CompletePHP

To start using PHP auto completion, press the Ctrl + x followed by Ctrl + o keys while writing some PHP functions.

Below is an example screenshot when pressing Ctrl + x followed by Ctrl + o after typing dat

Do note the function description provided at the top of the screen.

To enable PHP to autocomplete every time you open a PHP file, add this to your ~/.vimrc;

autocmd FileType php set omnifunc=phpcomplete#CompletePHP