How can PHP error reporting be utilized effectively to troubleshoot issues related to cookie handling and data retrieval in PHP scripts?

To troubleshoot issues related to cookie handling and data retrieval in PHP scripts, you can utilize PHP error reporting to display any errors or warnings that occur during the execution of your script. This can help you identify where the issue lies and make necessary adjustments to fix it.

<?php
// Enable error reporting for debugging
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Code for handling cookies and data retrieval
// Your code here
?>