In what ways can PHP be integrated with HTML to create interactive user experiences on a website?

To create interactive user experiences on a website, PHP can be integrated with HTML by embedding PHP code within HTML files. This allows for dynamic content generation, form processing, database interactions, and more. By using PHP to handle server-side processing and HTML to display the content, users can interact with the website in real-time.

<!DOCTYPE html>
<html>
<head>
    <title>Interactive Website</title>
</head>
<body>
    <h1>Welcome <?php echo $_GET['name']; ?>!</h1>
    
    <form method="post" action="process_form.php">
        <input type="text" name="email" placeholder="Enter your email">
        <button type="submit">Submit</button>
    </form>
</body>
</html>