Question

我创建了opencart电子商务结帐系统......

我为每个产品添加了额外的字段，所以当我结帐产品时，我想从总购物车数量中减去我的总首付金额....

example for my cart
product1 10,    downpayment 5  (number means US dollar)
product1 15,    downpayment 8

my total amount is 25
total Downpayment is 13

我希望从总金额中减去首期付款，并将此值回显到总金额以下... 如果得到结果，它将是这样的：

total amount      = 25 
downpayment       = 13 
remaining balance = 12

任何人都请帮帮我。 sory我的英语不完美......我是PHP新手......

我已经从我的数据库创建了产品表.. 如下所示，它是一个上传的产品字段......

===Database q8marketz

== Table structure for table product

|------
|Field|Type|Null|Default
|------
|//**product_id**//|int(11)|No|
|model|varchar(64)|No|
|downpayment|varchar(32)|No|
|sku|varchar(64)|No|
|upc|varchar(12)|No|
|ean|varchar(14)|No|
|jan|varchar(13)|No|
|isbn|varchar(13)|No|
|mpn|varchar(64)|No|
|location|varchar(128)|No|
|quantity|int(4)|No|0
|stock_status_id|int(11)|No|
|image|varchar(255)|Yes|NULL
|manufacturer_id|int(11)|No|
|shipping|tinyint(1)|No|1
|price|decimal(15,4)|No|0.0000
|points|int(8)|No|0
|tax_class_id|int(11)|No|
|date_available|date|No|
|weight|decimal(15,8)|No|0.00000000
|weight_class_id|int(11)|No|0
|length|decimal(15,8)|No|0.00000000
|width|decimal(15,8)|No|0.00000000
|height|decimal(15,8)|No|0.00000000
|length_class_id|int(11)|No|0
|subtract|tinyint(1)|No|1
|minimum|int(11)|No|1
|sort_order|int(11)|No|0
|status|tinyint(1)|No|0
|date_added|datetime|No|0000-00-00 00:00:00
|date_modified|datetime|No|0000-00-00 00:00:00
|viewed|int(5)|No|0
== Dumping data for table product

|886|BA-HANDBAGS-001ss|8| | | | | | |aaaa|95|7|data/hand-bags.jpg|7|0|25.0000|25|0|2012-09-03|0.00000000|1|0.00000000|0.00000000|0.00000000|1|1|1|1|1|2012-09-25 13:00:18|2012-09-25 14:15:09|0

Answer 1

这可能很容易在购物车的PHP代码中完成，如：

$total=25;
$downpayment=13;
$remainingBalance = $total-$downpayment;
echo $remainingBalance;

基于此和您之前的问题，我会真的建议您查看一些基本的PHP和SQL教程。某些事情like this可能会帮助您解决您遇到的这类问题。现在，我不是说不要问，我在想，你可能会在途中学到很多东西。

从总金额中减去首期付款

1 个答案: