How can the interaction between PHP and HTML be optimized for better performance?

To optimize the interaction between PHP and HTML for better performance, it is recommended to minimize the amount of PHP code within the HTML file and instead use PHP to generate dynamic content separately. This separation of concerns can improve readability, maintainability, and performance of the code.

<?php
// Separate PHP logic from HTML content
$dynamic_content = "Hello, World!";
?>

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