query(" SELECT requester, COUNT(*) as total_requests FROM song_requests WHERE requester IS NOT NULL AND requester != '' AND requester != 'Anónimo' GROUP BY requester ORDER BY total_requests DESC LIMIT 5 "); $top_requesters = $stmt->fetchAll(PDO::FETCH_ASSOC); echo json_encode([ 'success' => true, 'data' => $top_requesters ]); } catch (Exception $e) { echo json_encode([ 'success' => false, 'error' => $e->getMessage() ]); }