query($q); if(!$res){ echo "Failed to select: " . $conn->error . "\n"; exit(1); } $row = $res->fetch_assoc(); if(!$row){ echo "No rows in lokasi to simulate.\n"; exit(1); } $id = intval($row['id']); echo "Using id = $id\n"; $u = "UPDATE lokasi SET assisted = 1, last_assisted_at = DATE_SUB(NOW(), INTERVAL 31 DAY) WHERE id = $id"; if($conn->query($u)){ echo "Updated id $id. Affected rows: " . $conn->affected_rows . "\n"; } else { echo "Failed to update: " . $conn->error . "\n"; exit(1); } echo "Done.\n"; ?>