How can I prevent my PHP code from being displayed as plain text in the browser?

When PHP code is displayed as plain text in the browser, it means that the PHP code is not being executed by the server. To prevent this, make sure that your PHP file has a .php extension, is saved in the correct directory on the server, and that your server is configured to parse PHP code. Additionally, ensure that your PHP opening and closing tags are correct.

<?php
// Your PHP code here
?>