What are common pitfalls when using PHP to dynamically change stylesheets based on the season?

Common pitfalls when using PHP to dynamically change stylesheets based on the season include not properly handling edge cases such as the transition between seasons, not updating the stylesheet based on the current season, and not considering caching issues. To solve these issues, ensure that the PHP script accurately determines the current season and updates the stylesheet accordingly. Additionally, consider implementing caching mechanisms to improve performance.

<?php
// Determine the current season based on the current month
$month = date('n');
if ($month >= 3 && $month <= 5) {
    $season = 'spring';
} elseif ($month >= 6 && $month <= 8) {
    $season = 'summer';
} elseif ($month >= 9 && $month <= 11) {
    $season = 'fall';
} else {
    $season = 'winter';
}

// Update the stylesheet based on the current season
echo '<link rel="stylesheet" type="text/css" href="styles/' . $season . '.css">';
?>