WordPress at a glance
function is not described

Composer\Autoload

includeFile() WC 1.0

Scope isolated include.

Prevents access to $this/self from included files.

No Hooks.

Return

null. Nothing.

Usage

includeFile( $file );
$file (required)
-

Code of includeFile() WC 5.2.2

<?php
function includeFile($file)
{
    include $file;
}