In what scenarios would it be more efficient to handle formatting and styling on the server-side using PHP?

When dealing with dynamic content that requires consistent formatting across multiple pages or when the styling needs to be applied based on specific conditions or user preferences, it can be more efficient to handle formatting and styling on the server-side using PHP. This approach ensures that the presentation of the content remains consistent and can be easily updated without having to modify each individual page.

<?php
// Server-side PHP code to handle formatting and styling
$color = 'blue'; // Example of dynamically setting a color based on a condition
$font_size = '16px'; // Example of dynamically setting a font size based on a condition
?>

<!DOCTYPE html>
<html>
<head>
    <style>
        body {
            background-color: <?php echo $color; ?>;
            font-size: <?php echo $font_size; ?>;
        }
    </style>
</head>
<body>
    <h1>Welcome to our website</h1>
    <p>This is an example of handling formatting and styling on the server-side using PHP.</p>
</body>
</html>