Question

我的代码是这样的：

function insert_delete()
{
    ...

    $hotel             = $hotel;
    $address        = $address;
    $created_date     = date('Y/m/d H:i:s');

    $data = array('hotel'     => $hotel,
                  'address'     => $address,
                  'created_date' => $created_date
                 );
    $this->db->insert('tb_hotel',$data);

    $query = "DELETE FROM tbl_hotel WHERE created_date='$created_date'";
    $this->db>query($query);
}

调用insert_delete函数时，它将运行insert查询和删除查询。

插入数据时如何做，是直接删除数据，但半小时后删除数据？

谢谢

Answer 1

我希望你不要在半小时后想要删除实际运行，所以我假设您希望删除整理任何超过30分钟的行。

public function insert_delete()
{
    ...

    $hotel        = $hotel;
    $address      = $address;
    $created_date = date('Y/m/d H:i:s');

    $data = array('hotel'        => $hotel,
                  'address'      => $address,
                  'created_date' => $created_date
                 );
    $this->db->insert('tb_hotel',$data);

    // delete old rows more than 30 minutes old
    $date = new DateTime($created_date);

    $date->sub(new DateInterval('PT30M'));
    $del_dt = $date->format('Y-m-d H:i:s');

    $query = "DELETE FROM tbl_hotel WHERE created_date < '$del_dt'";
    $this->db>query($query);
}

半小时后如何删除数据？

1 个答案: