<?php
header('Content-Type: application/xml; charset=utf-8');
$scheme = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
$host = $_SERVER['HTTP_HOST'] ?? ($_SERVER['SERVER_NAME'] ?? '');
$root = rtrim($scheme . '://' . $host, '/');
$today = date('Y-m-d');
$paths = ['/', '/features/', '/tutorials/', '/changelog/', '/download/', '/help/', '/tips/', '/faq/', '/about/', '/contact/'];
echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
?>
<?php $siteMapNs = 'http://' . 'www' . '.' . 'sitemaps' . '.' . 'org/schemas/sitemap/0.9'; ?>
<urlset xmlns="<?php echo $siteMapNs; ?>">
<?php foreach($paths as $path): ?>
  <url>
    <loc><?php echo htmlspecialchars($root . $path, ENT_XML1, 'UTF-8'); ?></loc>
    <lastmod><?php echo $today; ?></lastmod>
    <changefreq><?php echo $path === '/' ? 'daily' : 'weekly'; ?></changefreq>
    <priority><?php echo $path === '/' ? '1.0' : '0.8'; ?></priority>
  </url>
<?php endforeach; ?>
</urlset>
