What potential pitfalls should be avoided when using PHP to dynamically change CSS based on the season?

One potential pitfall to avoid when dynamically changing CSS based on the season in PHP is hardcoding specific dates for each season. Instead, it's better to use PHP date functions to determine the current season dynamically. Another pitfall is not properly organizing and separating the CSS styles for each season, which can lead to messy and hard-to-maintain code. It's important to keep the code modular and organized for easier management.

<?php
// Determine the current season dynamically
$month = date('n');
$season = ($month >= 3 && $month <= 5) ? 'spring' : (($month >= 6 && $month <= 8) ? 'summer' : (($month >= 9 && $month <= 11) ? 'fall' : 'winter'));

// Use the determined season to include the appropriate CSS file
echo '<link rel="stylesheet" type="text/css" href="css/' . $season . '.css">';
?>