rtrim(SITE_URL, '/') . '/', 'lastmod' => date('Y-m-d'), 'changefreq' => 'daily', 'priority' => '1.0', ]; // ── All published posts — CLEAN URL ONLY ──────────────────────────────── try { $stmt = $pdo->query("SELECT slug, created_at FROM posts WHERE status = 'published' ORDER BY created_at DESC"); while ($post = $stmt->fetch()) { $slug = trim((string)($post['slug'] ?? '')); if ($slug === '') continue; // skip broken/empty slugs, prevents malformed $urls[] = [ 'loc' => rtrim(SITE_URL, '/') . '/post/' . rawurlencode($slug), 'lastmod' => !empty($post['created_at']) ? date('Y-m-d', strtotime($post['created_at'])) : date('Y-m-d'), 'changefreq' => 'weekly', 'priority' => '0.8', ]; } } catch (Throwable $e) { // Table/column mismatch or DB hiccup — skip posts, don't break the file error_log('sitemap.php posts query failed: ' . $e->getMessage()); } // ── All active categories — CLEAN URL ONLY ────────────────────────────── try { $stmt = $pdo->query("SELECT slug FROM categories WHERE is_active = 1"); while ($cat = $stmt->fetch()) { $slug = trim((string)($cat['slug'] ?? '')); if ($slug === '') continue; // Two categories (study-resources, blog) map to their own static // pages elsewhere in the codebase (see catUrl() in header.php) — // mirror that here so the sitemap never lists a URL that // immediately redirects elsewhere. $loc = $slug === 'study-resources' ? rtrim(SITE_URL, '/') . '/study-materials.php' : rtrim(SITE_URL, '/') . '/category/' . rawurlencode($slug); $urls[] = [ 'loc' => $loc, 'lastmod' => date('Y-m-d'), 'changefreq' => 'daily', 'priority' => '0.7', ]; } } catch (Throwable $e) { error_log('sitemap.php categories query failed: ' . $e->getMessage()); } // ── All active sub-categories — matches includes/header.php's real link // pattern (/listing.php?sub=slug), not the old /sub-category.php?slug= // pattern the previous static sitemap used ──────────────────────────── try { $stmt = $pdo->query("SELECT slug FROM sub_categories WHERE is_active = 1"); while ($sub = $stmt->fetch()) { $slug = trim((string)($sub['slug'] ?? '')); if ($slug === '') continue; $urls[] = [ 'loc' => rtrim(SITE_URL, '/') . '/listing.php?sub=' . rawurlencode($slug), 'lastmod' => date('Y-m-d'), 'changefreq' => 'weekly', 'priority' => '0.6', ]; } } catch (Throwable $e) { error_log('sitemap.php sub_categories query failed: ' . $e->getMessage()); } // ── Output valid XML no matter what happened above ────────────────────── echo '' . "\n"; echo '' . "\n"; foreach ($urls as $u) { echo " \n"; echo " " . htmlspecialchars($u['loc'], ENT_QUOTES, 'UTF-8') . "\n"; echo " " . htmlspecialchars($u['lastmod'], ENT_QUOTES, 'UTF-8') . "\n"; echo " " . htmlspecialchars($u['changefreq'], ENT_QUOTES, 'UTF-8') . "\n"; echo " " . htmlspecialchars($u['priority'], ENT_QUOTES, 'UTF-8') . "\n"; echo " \n"; } echo '' . "\n";