What is the difference between require and include when including the GD Library in PHP?

When including the GD Library in PHP, the main difference between require and include is that require will cause a fatal error if the file cannot be included, while include will only produce a warning and continue execution. Therefore, it is recommended to use require when including the GD Library to ensure that the script does not continue if the library is not properly included.

<?php
require 'path/to/gd_library.php';
// Your GD Library code here
?>