How can one troubleshoot issues with including PHP files in Joomla?

When encountering issues with including PHP files in Joomla, one common solution is to check the file paths and ensure they are correct. Make sure the file is located in the correct directory within the Joomla installation. Additionally, verify that the file permissions are set correctly to allow Joomla to access and include the PHP file.

<?php
// Example code to include a PHP file in Joomla
include_once JPATH_ROOT . '/path/to/your/file.php';
?>