What is the correct way to combine HTML and PHP codes in a PHP file?
When combining HTML and PHP codes in a PHP file, you can simply embed PHP code within your HTML by using `<?php ?>` tags. This allows you to dynamically generate HTML content using PHP. Make sure to save the file with a `.php` extension to ensure that the PHP code is processed by the server.
<!DOCTYPE html>
<html>
<head>
<title>PHP and HTML</title>
</head>
<body>
<h1><?php echo "Hello, World!"; ?></h1>
</body>
</html>