Is there a recommended approach for structuring PHP scripts to interact with HTML elements on a webpage?

When structuring PHP scripts to interact with HTML elements on a webpage, it is recommended to separate the PHP logic from the HTML markup. One common approach is to use a template system like PHP's own `include` function or a more robust templating engine like Twig. This allows for better organization, readability, and maintainability of the code.

<?php
// PHP logic
$data = "Hello, World!";

// HTML markup
?>
<!DOCTYPE html>
<html>
<head>
    <title>PHP and HTML Interaction</title>
</head>
<body>
    <h1><?php echo $data; ?></h1>
</body>
</html>