Post:	The 13. post
Title:	include_once and require_once to Prevent Duplicate Inclusions
Language:	PHP
Description:	When you're working on a PHP project that involves including files, it’s a good practice to use include_once or require_once instead of include or require. These functions ensure that a file is included only once, preventing issues related to multiple inclusions.
Code Example:	// Using include_once include_once 'config.php'; // Or using require_once require_once 'config.php';