What are the potential challenges of posting extensive HTML code in a PHP forum for image galleries?

Posting extensive HTML code in a PHP forum for image galleries can make the code difficult to read and manage. Additionally, it can increase the risk of errors and make it challenging for other users to provide feedback or assistance. To solve this issue, you can separate the HTML code into separate files and include them in the PHP script using include or require statements.

<?php

// Include the HTML code for the image gallery
require 'image_gallery.html';

// Other PHP code for the forum
// ...