What are the advantages and disadvantages of including CSS styles in a central file for a PHP-driven website with multiple DIVs?

Including CSS styles in a central file for a PHP-driven website with multiple DIVs can help maintain consistency in styling across the website and make it easier to update styles globally. However, it can also lead to larger file sizes and potentially slower loading times if the CSS file becomes too large. To address this issue, you can use PHP to dynamically generate CSS files based on the specific styles needed for each page or section of the website.

<?php
header("Content-type: text/css");

// Define CSS styles dynamically based on page or section
$primaryColor = "#ff0000";
$secondaryColor = "#00ff00";

?>

/* Global styles */
body {
    font-family: Arial, sans-serif;
}

/* Specific styles for multiple DIVs */
.div1 {
    background-color: <?php echo $primaryColor; ?>;
    color: #fff;
}

.div2 {
    background-color: <?php echo $secondaryColor; ?>;
    color: #000;
}