PayPal捐赠表单未传递下拉选项名称至PayPal问题排查

我一眼就发现问题所在啦——你表单里多了一个空的隐藏输入框，它和下拉菜单的name属性完全重名，这就导致PayPal优先读取了那个空值，直接忽略了下拉菜单选中的组织名称。

具体问题点 #

看这段冲突的代码：

<input type="hidden" name="item_name"> 
<!-- 后面跟着你的下拉菜单 -->
<select name="item_name">
  ...选项内容...
</select>

这两个元素都使用item_name作为name属性，浏览器提交表单时，空的隐藏字段会被先发送，PayPal接收到后就会采用这个空值，完全覆盖掉后面下拉菜单的选中值。

修复步骤 #

直接删掉那个空的隐藏<input type="hidden" name="item_name">字段就可以解决问题！

修复后的核心表单代码如下：

<form target="paypal" action="https://www.paypal.com/cgi-bin/webscr" method="post"> 
<!-- If using a Business or Company Logo Graphic, include the "cpp_header_image" variable in your View Cart code. --> 
<input type="hidden" name="cmd" value="_donations"> 
<!-- Replace "business" value with your PayPal Email Address or Account ID --> 
<input type="hidden" name="business" value="testemail@paypal.com"> 
<!-- 已移除空的item_name隐藏字段 -->
<input type="hidden" name="item_number" value="WF-1001"> 
<input type="hidden" name="tax" value="0"> 
<input type="hidden" name="no_shipping" value="2"> 
<input type="hidden" name="lc" value="AU"> 
<input type="hidden" name="currency_code" value="AUD"> 
<!-- Replace value with the web page you want the customer to return to after a successful transaction --> 
<input type="hidden" name="return" value="https://mullumseed.org.au/thankyou"> 
<!-- Replace value with the web page you want the customer to return to after item cancellation --> 
<input type="hidden" name="cancel_return" value="https://mullumseed.org.au/cancel"> 
<input type="hidden" name="bn" value="PP-DonationsBF:btn_donateCC_LG.gif:NonHosted"> 
<input type="hidden" name="button_subtype" value="products"> 
<input type="hidden" name="no_note" value="0"> 
<input type="hidden" name="cn" value="Add special instructions to the seller:"> 
<!-- -->Please enter your donation amount: (Example - 10.00)<br><br> 
<input type="text" name="amount" size="5"> 
<br><br>Choose Your Organization:&nbsp;&nbsp; 
<select name="item_name"> 
<option value="Widget Fund Donation - Byron Shire Chemical Free Landcare" selected>Byron Shire Chemical Free Landcare</option> 
<option value="Widget Fund Donation - Corem">Corem</option> 
<option value="Widget Fund Donation - Mullum Seed Inc">Mullum Seed Inc</option> 
<option value="Widget Fund Donation - Mullum Community Garden">Mullum Community Garden</option> 
<option value="Widget Fund Donation - Mullum Cares">Mullum Cares</option> 
<option value="Widget Fund Donation - Mullum Mens Shed">Mullum Mens Shed</option> 
<option value="Widget Fund Donation - Mullum Food Coop">Mullum Food Coop</option> 
<option value="Widget Fund Donation - Shara Community Gardens">Shara Community Gardens</option> 
<option value="Widget Fund Donation - Reforest Now">Reforest Now</option> 
<option value="Widget Fund Donation - Mullumbimbees">Reforest Now</option> 
</select> 
<input type="hidden" name="on1" value="Tax Deductable Email Receipt Requested">Would you like a Tax Deductable Email Receipt?&nbsp;&nbsp;&nbsp; 
<INPUT NAME="os1" type="radio" value="Yes" checked>Yes &nbsp;&nbsp;&nbsp; 
<INPUT NAME="os1" type="radio" value="No Thanks">No Thanks<br><br> 
<!-- --> 
<input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_donateCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!"> 
<img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1"> 
</form>

修改完成后，你可以测试一下提交流程，下拉菜单选中的组织名称就能正常传递到PayPal的付款页面啦。

内容的提问来源于stack exchange，提问作者Loretta