Including PHP functions from another file

function, php

Solution

<?php
ob_start();
require 'filename.php';
ob_end_clean();
?>

Problem

I would like to access some functions defined in another PHP file, but that file also outputs content that I don't want to display. Is there any way to access the functions without "running" the whole file? Perhaps by redirecting the output from that file to somewhere hidden?

Original source