How can absolute paths be utilized effectively when including PHP files in a webpage?

When including PHP files in a webpage, using absolute paths can ensure that the files are always included correctly, regardless of the current working directory. To use absolute paths effectively, you can define a base path variable in your main PHP file and then use this variable to include other files.

<?php
// Define the base path of your project
$basePath = $_SERVER['DOCUMENT_ROOT'] . "/your_project_directory/";

// Include a PHP file using the absolute path
include $basePath . "includes/header.php";
?>