codeigniter數據庫where_in錯誤

Question

我很困惑。 我正在嘗試以下查詢：

$this->db->select('id')->from("orders")->where("status", "Active")->where_in($this->session->id, $this->db->query("SELECT `associated_staffs` FROM `orders` WHERE `status`='Active'")->result());
$total_rows = $this->db->count_all_results();

它在sql查詢下生成：

SELECT COUNT(*) AS `numrows` FROM `orders` WHERE `status` = 'Active' AND 3 IN(, )

但它應該生成：

SELECT COUNT(*) AS `numrows` FROM `orders` WHERE `status` = 'Active' AND 3 IN(3,14,2 )

無論如何我都沒有怎么做。 請幫忙

Answer 1

您可以使用類似

    $this->db->where(array('active' => 1));
    $this->db->from('cars'); //table name here
    $this->db->where_in('id', array(1, 2, 3, 3)); //pass yoru where_in values here
    $cars = $this->db->count_all_results();
    echo $cars;
    echo $this->db->last_query();

輸出：

選擇COUNT（*） numrows從active cars = 1 AND id IN（ numrows ）

Answer 2

試試這個簡單的方法

$query = $this->db->query("SELECT id FROM orders WHERE status = 'Active' AND 3 IN(3,14,2)");
$result = $query->result_array();
return $result;

Answer 3

嘗試這個

  $this->db->select('COUNT(*) AS numrows');
  $this->db->from('orders');
  $this->db->where_in(3,array(3,14,2));
  $this->db->where('status','Active');
  $query=$this->db->get();

  $result=$query->row();
  echo $result->numrows;