Codeigniter provides select_avg method to get average value in mysql table column. Writes a “SELECT AVG(field)” portion for your query. As with select_max(), You can optionally include a second parameter to rename the resulting field.
Let’s create a select_avg method in codeigniter
$this->db->select_avg('amount'); $result = $this->db->get('tbl_product')->row(); return $result->amount;