How can the use of code tags or PHP tags improve the readability and maintainability of PHP code within HTML documents?

Using code tags or PHP tags can improve the readability and maintainability of PHP code within HTML documents by clearly separating PHP logic from HTML markup. This makes it easier to identify and modify PHP code within the document without getting mixed up with HTML syntax. Additionally, using code tags or PHP tags can help prevent errors and make the code more organized.

<?php
// PHP code here
?>