Getting data posted in between two dates

Try This:

$this->db->where('sell_date BETWEEN "'. date('Y-m-d', strtotime($start_date)). '" and "'. date('Y-m-d', strtotime($end_date)).'"');

Hope this will work

This looks like what you need:

$this->db->where('order_date >=', $first_date);
$this->db->where('order_date <=', $second_date);
return $this->db->get('orders');