How can the correct path for including a PHP script be determined in a PHP file?

To determine the correct path for including a PHP script in a PHP file, you can use the `__DIR__` magic constant combined with the `dirname()` function to get the directory of the current file. You can then concatenate this with the relative path to the script you want to include.

<?php
include __DIR__ . '/path/to/script.php';
?>