Should HTML code, such as the standard template generated by Dreamweaver, be included in every PHP file or only in specific files like index.php?

It is not necessary to include HTML code in every PHP file, as PHP is a server-side scripting language that can generate HTML dynamically. It is common practice to include HTML code in specific files like index.php, where the main structure of the webpage is defined. This helps to keep the code organized and makes it easier to maintain and update.

<?php
// index.php

// PHP code goes here

?>
<!DOCTYPE html>
<html>
<head>
    <title>My Website</title>
</head>
<body>
    <h1>Welcome to my website!</h1>
    <!-- Other HTML content goes here -->
</body>
</html>