Code:
$str_query_insert = "INSERT INTO kaizen_notice VALUES ("
. "{$this->conn->escape($data['kaizen_id'])}, "
. "{$this->conn->escape($n_id)}, "
. "{$this->conn->escape(date('Y-m-d'))}, "
. "{$this->conn->escape($to_tnb)}, "
. "{$this->conn->escape($to_name)}, "
. "{$this->conn->escape($from_tnb)}, "
. "{$this->conn->escape($from_name)}, "
. "{$this->conn->escape($data['comment'])}, "
. "{$this->conn->escape($kaizen->ks_state)}"
. ")";