//$this->db->query("update tbl_registration set dob = AES_ENCRYPT(".$data['dob'].",'Ptf/PWNWrULQT72syxfaaBRTS9JbiKrj9dfuVEvT3rA')where id = ".$insertid);
$this->db->query("Update tbl_doctors SET dob = AES_ENCRYPT(".$data['dob'].",".$key."), name = AES_ENCRYPT(".$data['name'].",".$key.") where id=".$insertid);