How can the issue of PHP code not executing or displaying properly on an Apache server be troubleshooted?

To troubleshoot the issue of PHP code not executing or displaying properly on an Apache server, you can check the Apache error logs for any relevant error messages, ensure that PHP is properly installed and enabled on the server, and confirm that the PHP code is syntactically correct. Additionally, you can try restarting the Apache server to see if that resolves the issue.

<?php
// Example PHP code snippet to check if PHP is properly installed and enabled on the server
phpinfo();
?>