如何向 PayPal 提交多个产品，其中一些产品数量为 0
我正在尝试设置一个简单的单页“立即购买”表单，其中包含多个产品列表和一个文本输入框，允许用户指定他们对每个产品的需求量或指定“0”以不将产品添加到购物车。当然，如果某人的数量只有 0，PayPal 会返回“您输入了无效的数量值。数量值必须是大于或等于 1 的整数。”有没有简单的解决方法可以让 PayPal 忽略提交的数量为“0”的产品？我的表单本质上是这样的（像total_item_*这样的字段用于jquery计算脚本）：
<form action="https://www.paypal.com/cgi-bin/webscr" method="post" id="frmCreateCheckboxRange">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="upload" value="1">
<input type="hidden" name="business" value="[email protected]">
<input type="hidden" name="currency_code" value="US">
<fieldset>
<table width="500">
<!-- Product 1 -->
<tr>
<td align="center">
<input type="text" name="quantity_1" id="qty_item_1" value="0" size="2" />
<input type="hidden" name="item_name_1" value="Non-Driver Event Pit Passes (6/ 29 - 7/ 2)" />
<input type="hidden" name="amount_1" value="30.00" />
</td>
<td>Non-Driver Event Pit Passes (6/ 29 - 7/ 2)</a></td>
<td align="center" id="price_item_1">$30.00</td>
<td align="center" id="total_item_1">$0.00</td>
</tr>
<!-- Product 2 -->
<tr>
<td align="center">
<input type="text" name="quantity_2" id="qty_item_2" value="0" size="2" />
<input type="hidden" name="item_name_2" value="Non-Driver Single Day Pit Passes (Fri. 6/29)" />
<input type="hidden" name="amount_2" value="15.00" />
</td>
<td>Non-Driver Single Day Pit Passes (Fri. 6/29)</td>
<td align="center" id="price_item_2">$15.00</td>
<td align="center" id="total_item_2">$0.00</td>
</tr>
</table>
<input type="image" src="http://www.paypal.com/en_US/i/btn/x-click-but01.gif" name="submit">
</fieldset>
</form>
I'm trying to set up a simple, one-page "buy now" form with multiple product listings and a text input box allowing users to specify how much they would like of each product OR specifying '0' to not add the product to the cart. Of course, if someone just has 0 for a quantity, PayPal returns "You have entered an invalid quantity value. A quantity value must be an integer greater than or equal to one." Is there an easy work-around for getting PayPal to ignore products submitted that have a quantity of "0"? My form essentially it looks like this (fields like total_item_* are for the jquery calculation script):
<form action="https://www.paypal.com/cgi-bin/webscr" method="post" id="frmCreateCheckboxRange">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="upload" value="1">
<input type="hidden" name="business" value="[email protected]">
<input type="hidden" name="currency_code" value="US">
<fieldset>
<table width="500">
<!-- Product 1 -->
<tr>
<td align="center">
<input type="text" name="quantity_1" id="qty_item_1" value="0" size="2" />
<input type="hidden" name="item_name_1" value="Non-Driver Event Pit Passes (6/ 29 - 7/ 2)" />
<input type="hidden" name="amount_1" value="30.00" />
</td>
<td>Non-Driver Event Pit Passes (6/ 29 - 7/ 2)</a></td>
<td align="center" id="price_item_1">$30.00</td>
<td align="center" id="total_item_1">$0.00</td>
</tr>
<!-- Product 2 -->
<tr>
<td align="center">
<input type="text" name="quantity_2" id="qty_item_2" value="0" size="2" />
<input type="hidden" name="item_name_2" value="Non-Driver Single Day Pit Passes (Fri. 6/29)" />
<input type="hidden" name="amount_2" value="15.00" />
</td>
<td>Non-Driver Single Day Pit Passes (Fri. 6/29)</td>
<td align="center" id="price_item_2">$15.00</td>
<td align="center" id="total_item_2">$0.00</td>
</tr>
</table>
<input type="image" src="http://www.paypal.com/en_US/i/btn/x-click-but01.gif" name="submit">
</fieldset>
</form>
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最好的办法是为每件商品添加一个
从购物车中删除按钮。Your best bet is to include a
Remove from Cartbutton for each item.