What are some best practices for organizing and including files in PHP to avoid confusion and errors?

When working on a PHP project, it's essential to organize your files properly to avoid confusion and errors. One best practice is to use a consistent naming convention for your files and folders. Another tip is to group related files together in directories based on their functionality. Additionally, consider using namespaces to organize and autoload classes efficiently.

// Example of organizing files using namespaces

// Define namespace for a group of classes
namespace MyProject\Utils;

// Include the class file using the namespace
require_once 'Utils/HelperClass.php';

// Create an instance of the class
$helper = new HelperClass();