Codeigniter db select 其中作为数组

Question

我有这段代码需要用来从数据库中获取结果，我正在使用 codeigniter。这是查询的样子，

        $this->db->select('*');
        $this->db->where('broadcast_id', $bid);
        $query = $this->db->get('ih_noticeboard');
        $result = $query->result();
        if($query->num_rows() < 1){
            $data = "no feed ";
        }else{
            $data = $result;
        }

where子句中的$bid就是从这段代码中得到的，

    $this->db->select('broadcast_id');
    $this->db->where('broadcast_subscribers', $id);
    $query = $this->db->get('ih_broadcastors    ');
    if($query->num_rows() < 1){
        $data = "user not subscribed to any broadcasting";
    }else{
        $ress = $query->result();
        foreach ($ress as $row){
            $bid = $row->broadcast_id;
        }`

现在select只使用了一个$bid，如何将$bid作为数组使用？

Answer 1

很简单。只需使用 $this->db->where_in('broadcast_id', $bid);

相反，如果 $this->db->where('broadcast_id', $bid);

https://ellislab.com/codeigniter/user-guide/database/active_record.html#select

Answer 2

用一个查询来获取提要不是更好吗？

$this->db->select("ih_noticeboard.*");
$this->db->from("ih_noticeboard");
$this->db->join("ih_broadcastors", "ih_noticeboard.broadcast_id = ih_broadcasters.broadcast_id");
$this->db->where("ih_broadcastors.broadcast_subscribers", $id);
$result->db->get()->result();

Answer 3

假设您想要 select 在 table 其中

name='jane' and broadcast_id=2 #as an example

        $bid=array(
           'name'=>'jane',
           'broadcast_id'=>'2'
                  ) 

        $this->db->where($bid);
        $this->db->from($table_name);
        $query = $this->db->get()->result_array();
        return $query;

请注意，$bid as 数组的格式必须适合要查询的下一个 数据库 table。您可以使用 foreach 循环 执行此操作，例如

   foreach ($ress as $row){
        $bid = array(
             'name'=>$row['name'],
             'broadcast_id'=>$row['id']
         );
    }

Codeigniter db select 其中作为数组

Codeigniter db select where as an array

php

mysql

codeigniter