= DATE(NOW()) - INTERVAL 30 DAY "; $stmt = $con->prepare($sql); $stmt->bindParam(':driver_id', $driver_id, PDO::PARAM_INT); $stmt->execute(); $row = $stmt->fetch(PDO::FETCH_ASSOC); if ($row && $row['max_speed'] !== null) { jsonSuccess([$row]); } else { jsonSuccess([[ "avg_score" => 100, "total_hard_brakes" => 0, "max_speed" => 0 ]]); } ?>