What are the risks of directly copying content from one page to another in PHP, especially when on different directory levels?

Copying content directly from one page to another in PHP can lead to issues such as broken links, inconsistent data, and maintenance difficulties. To solve this problem, it is recommended to use include or require functions to include the content from one page into another. This way, the content remains centralized and any changes made to the original page will automatically reflect in all pages where it is included.

<?php
// Include the content from another page using require_once
require_once('path/to/other/page.php');
?>