How can CSS be effectively utilized in conjunction with PHP to create a visually appealing and functional website?

To create a visually appealing and functional website using CSS and PHP, you can dynamically generate CSS styles in your PHP code based on user input or database values. This allows for customization and flexibility in styling elements on your website.

<?php
// Retrieve user's preferred color from database
$userColor = getUserColor(); // Function to get user's preferred color

// Output CSS styles dynamically based on user's preferred color
echo '<style>
    body {
        background-color: ' . $userColor . ';
    }
</style>';
?>