FWIW (on that super old report): * [`require`](https://www.php.net/manual/en/function.include.php) is a keyword, not a function * Geany doesn't auto-complete keywords (yet) * You can workaround this by creating a PHP [tags file](https://www.geany.org/manual/current/index.html#global-tags-files) including this as whatever type you like (function, constant, or anything that would work).