In what ways can the separation of PHP and HTML be beneficial for web applications, and how can developers implement this separation effectively?

Separating PHP and HTML can make code more organized, easier to maintain, and improve readability. Developers can implement this separation effectively by using PHP to handle backend logic and data processing, while using HTML for front-end presentation. This can be achieved by using PHP to generate dynamic content and insert it into HTML templates.

<?php
// PHP logic to fetch data from database
$data = fetchDataFromDatabase();

// HTML template with dynamic content inserted using PHP
?>
<!DOCTYPE html>
<html>
<head>
    <title>Dynamic Content Example</title>
</head>
<body>
    <h1>Welcome to our website!</h1>
    <p><?php echo $data; ?></p>
</body>
</html>