What are best practices for integrating PHP code with HTML elements to achieve dynamic content display on a webpage?

To integrate PHP code with HTML elements for dynamic content display, you can use PHP echo statements within the HTML code to output dynamic content. This allows you to generate HTML content based on PHP variables or functions, making your webpage more interactive and responsive.

<!DOCTYPE html>
<html>
<head>
    <title>Dynamic Content Display</title>
</head>
<body>
    <h1>Welcome, <?php echo $username; ?></h1>
    <p>Your balance is: <?php echo getBalance($userId); ?></p>
</body>
</html>