Codeigniter中的多列where_in子句

Question

下面是codeigniter单列where_in子句$this->db->where_in('x1',$val);

我如何在CodeIgniter where_in子句中传递多个列，例如下面的MySQL查询， select * from tab1 where (col1,col2) in ((1,2),(2,3))

Answer 1

假设您的数据数组是这样的（应该是）

$val1 = array(1,2);
$val2 = array(2,3);

和查询应该是

$this->db->select('*');
$this->db->from('tab1');
$this->db->where_in('col1',$val1);
$this->db->or_where_in('col2',$val2);
$query = $this->db->get();
$result = $query->result_array();

---

否则你可以使用

$this->db->query("select * from tab1 where (col1,col2) in ($val1,$val2)");

Answer 2

“ $ arr_1 = some_array;”

“ $ arr_2 =某个数组；”

如果它们是相同的数组，只需将$array_2替换$array_2 $arr_1

$result = $this->db->select('*')->where_in('col1',$arr_1)->where_in('col2',$arr_2)->get('tab1')->result_array();

要么

$result = $this->db->select('*')->where_in('col1',$arr_1)->or_where_in('col2',$arr_2)->get('tab1')->result_array();