Are there any best practices for organizing PHP files, such as header.php and footer.php, when implementing design changes?

When implementing design changes in PHP files like header.php and footer.php, it is best practice to separate the structural elements (header, footer, sidebar) from the content. This can be achieved by using includes or requires to pull in separate files for each section. By organizing the files in this way, it becomes easier to make design changes without affecting the underlying logic of the website. 

```php
// header.php
<!DOCTYPE html>
<html>
<head>
    <title>My Website</title>
</head>
<body>
    <?php include 'nav.php'; ?>

// footer.php
    <?php include 'footer.php'; ?>
</body>
</html>
```
This code snippet demonstrates how to organize the header and footer sections of a PHP file by including separate files for the navigation and footer content.

Keywords

PHP file organization header.php footer.php design changes

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