从html条带结帐拉取值

Question

我将在自定义数据类型中放置一个值。我正在使用条带检查，并试图让它成为跨文本内容，以便我可以将该值/文本转换为变量。

HTML：

                        <!--Totals-->
                        <div class="col-xs-12 col-sm-6 pull-right">
                          <p class="lead">Amount Due <?php echo '$date'; ?> + <?php echo '$paymentdatesetting'?></p>
                          <div class="table-responsive">
                            <table class="table">
                              <tbody>
                                <tr>
                                  <th style="width:50%">Subtotal:</th>
                                  <td id='subtotal'>$subtotal</td>
                                </tr>
                                <tr>
                                  <th>Tax ($tax-country)</th>
                                  <td><?php echo '$total-tax'; ?></td>
                                </tr>
                                <tr>
                                  <th>Shipping:</th>
                                  <td><?php echo '$shipping'; ?></td>
                                </tr>
                                <tr>
                                  <th>Total:</th>
                                  <td>$<span id='total'>100</span></td>
                                </tr>
                              </tbody>
                            </table>
                          </div>
                        </div>
                        <!--/Totals-->

忽略主要是sudo代码的PHP代码，以提醒我一些事情。

JS和条带结帐代码：

                     <script type="text/javascript">
                            var totalvalue = document.getElementById("#total").textContent="newtext";
                          </script>


                          <form action="/your-server-side-code" method="POST">
                            <script
                              src="https://checkout.stripe.com/checkout.js"
                              class="stripe-button"
                              data-key="pk_test_HwlcQ0e8VwlFkQJu46vynuPT"
                              data-amount= totalvalue
                              data-name="SeaitManageit"
                              data-description="Inovice"
                              data-image="https://stripe.com/img/documentation/checkout/marketplace.png"
                              data-locale="auto"
                              data-currency= invoicecurency>
                            </script>
                            </form>