How can error reporting and display be configured in PHP to troubleshoot issues like not displaying data or error messages?

To troubleshoot issues like not displaying data or error messages in PHP, you can configure error reporting and display settings in the php.ini file or within your PHP script. To display errors on the screen, you can set the error_reporting and display_errors directives to On. Additionally, you can use the error_reporting function in your script to set error reporting levels.

// Enable error reporting and display errors
ini_set('display_errors', 1);
error_reporting(E_ALL);