What is the difference between PHP and phpBB in the context of creating a forum website?

PHP is a programming language used to create dynamic websites, while phpBB is a forum software written in PHP that helps in creating online discussion forums. To create a forum website, you would use PHP to build the website infrastructure and then integrate phpBB to manage the forum functionalities.

// Sample PHP code to integrate phpBB into a forum website
<?php
// Include phpBB forum software
define('IN_PHPBB', true);
$phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './forum/';
$phpEx = substr(strrchr(__FILE__, '.'), 1);
include($phpbb_root_path . 'common.' . $phpEx);

// Start phpBB session
$user->session_begin();
$auth->acl($user->data);
$user->setup();
?>