What are some best practices for handling PHP functions and HTML content simultaneously on a webpage?

When handling PHP functions and HTML content simultaneously on a webpage, it is best practice to separate the PHP logic from the HTML markup for better readability and maintainability. One common approach is to use PHP to generate dynamic content and then inject it into the HTML template where needed using echo statements or short PHP tags. This way, you can keep your code organized and easily make changes to either the logic or the presentation without affecting the other.

<?php
// PHP logic to generate dynamic content
$dynamic_content = "Hello, World!";

// HTML template with PHP code to inject dynamic content
?>
<!DOCTYPE html>
<html>
<head>
    <title>PHP and HTML Example</title>
</head>
<body>
    <h1><?php echo $dynamic_content; ?></h1>
</body>
</html>