PHP

where_in codeigniter

$this->db->select('ae_users.employee_id, ae_users.emp_name, ae_users.emp_name2, ae_users.emp_name3');
		$this->db->from('ae_users');                
		$this->db->where_in('ae_users.employee_id',$employee_ids);
     
		$query =$this->db->get();
             
		if ($query->num_rows()) {
			return $query->result_array();
		} else {
			return 0;
		}

or where in codeigniter

->where('(library.available_until >=', date("Y-m-d H:i:s"), FALSE)
->or_where("library.available_until = '00-00-00 00:00:00')", NULL, FALSE)