Codeigniter - use two like and where together - php

Question

I have a problem with use two like statement and where together:
$this->db->select('something');
$this->db->where('WHERE',$var);
$this->db->where_in('WHEREIN', $var);
$this->db->like('LIKE1',$query);
$this->db->or_like('LIKE2',$query);
$query = $this->db->get('table');
My query must select LIKE1 or LIKE2 where WHERE andWHEREIN is true.
If I use or_like, where statement get or too,
If i use just like, it's become like AND like statement
Any solution??

Answer 1

I found this solution:
use group_start() and group_end(), so my code turn to
$this->db->select('something');
$this->db->where('WHERE',$var);
$this->db->where_in('WHEREIN', $var);
$this->db->group_start();
$this->db->like('LIKE1',$query);
$this->db->or_like('LIKE2',$query);
$this->db->group_end();
$query = $this->db->get('table');

Answer 2

If you have a complex where clause, you can write it this way:
$this->db->where("doc = '123456' AND place IN('1,2,3') AND name (LIKE '%query%' ESCAPE '!' OR code LIKE '%query%' ESCAPE '!' )", NULL);

Answer 3

When you run this kind of query is better if you create a model like this:
function example(){
$query = "( SQL QUERY )";
$search = $this->db->query($query);
return $search->result_array();
}