using BETWEEN in WHERE condition

问题:

I'd like the following function to select hotels with an accomodation between a certain $minvalue and $maxvalue. What would be the best way to do that?

function gethotels($state_id,$city,$accommodation,$minvalue,$maxvalue,$limit,$pgoffset)
    {
        $this->db->limit($limit, $pgoffset);
        $this->db->order_by("id", "desc");
        $this->db->where('state_id',$state_id);
        $this->db->where('city',$city);

        // This one should become a between selector
        $this->db->where($accommodation,$minvalue); 

        $result_hotels = $this->db->get('hotels');
        return $result_hotels->result();

   }

回答1:

You should use

$this->db->where('$accommodation >=', minvalue);
$this->db->where('$accommodation <=', maxvalue);

I'm not sure of syntax, so I beg your pardon if it's not correct.
Anyway BETWEEN is implemented using >=min && <=max.
This is the meaning of my example.

EDITED:
Looking at this link I think you could write:

$this->db->where("$accommodation BETWEEN $minvalue AND $maxvalue");

回答2:

In Codeigniter This is simple Way to check between two date records ...

$start_date='2016-01-01';
$end_date='2016-01-31';

$this->db->where('date BETWEEN "'. date('Y-m-d', strtotime($start_date)). '" and "'. date('Y-m-d', strtotime($end_date)).'"');

回答3:

Sounds correct but some issues maybe creates executing this query: I would suggest:

$this->db->where( "$accommodation BETWEEN $minvalue AND $maxvalue", NULL, FALSE );

回答4:

You might also encounter an error message. "Operand type clash: date is incompatible with int.

Use single quotes around the dates. E.g.: $this->db->where("$accommodation BETWEEN '$minvalue' AND '$maxvalue'");