How can absolute paths be properly used in PHP includes to avoid file not found errors?

When using absolute paths in PHP includes, it's important to ensure that the paths are correctly specified to avoid file not found errors. One way to do this is by using the `__DIR__` magic constant in PHP, which represents the directory of the current file. By combining `__DIR__` with the absolute path to the included file, you can ensure that the file is always found regardless of the current working directory.

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