$query_all = "select count(*) from tb_car where car_road like '%$start%' and car_road like '%$end%' ";
$result = $pdo->prepare($query_all);
$result->execute();
$total = $result->fetchColumn();
$pages = pages($total,$page,$pageSize,$show); // 调用分页方法
/** 筛选数据 **/
$query = "select tb_car.*,tb_car_log.car_log from tb_car left join tb_car_log on tb_car_log.car_number = tb_car.car_number ";
$query .= "where car_road like '%$start%' and car_road like '%$end%' order by id desc limit {$offset},{$pageSize} ";
$res = $pdo->prepare($query);
$res->execute();

改为

   $query_all = "select count(*) from tb_car where car_number like '%$start%'  ";
//and car_road like '%$end%'
    $result = $pdo->prepare($query_all);
    $result->execute();
    $total = $result->fetchColumn();
    $pages = pages($total,$page,$pageSize,$show); // 调用分页方法
    /** 筛选数据 **/
    $query = "select tb_car.*,tb_car_log.car_log from tb_car left join tb_car_log on tb_car_log.car_number = tb_car.car_number ";
    $query .= "where car_number like '%$start%'  order by id desc limit {$offset},{$pageSize} ";
//and car_road like '%$end%'
    $res = $pdo->prepare($query);
    $res->execute();
?>