统一的销售税难题答案

【问题标题】：Harmonized sales tax headaches统一的销售税难题
【发布时间】：2010-05-06 00:31:53
【问题描述】：

好的，我使用的是 BambooInvoice 软件，而我现在有两个销售税。

这就是他们的工作方式

商品价格 * tax1 = Sum1Tax1 Sum1tax1 *tax2 = 最终售价

目前，Bamboo 发票可以做到这一点

Price of Item * tax1 = pricetax1
price of item * tax2 = pricetax2
Price of item + pricetax1 + pricetax2

这是它的代码

$this->db->select('(SELECT SUM('.$this->db->dbprefix('invoice_items').'.amount * '.$this->db->dbprefix('invoice_items').'.quantity * ('.$this->db->dbprefix('invoices').'.tax1_rate/100 * '.$this->db->dbprefix('invoice_items').'.taxable)) FROM '.$this->db->dbprefix('invoice_items').' WHERE '.$this->db->dbprefix('invoice_items').'.invoice_id=' . $invoice_id . ') AS total_tax1', FALSE);
  $this->db->select('(SELECT SUM('.$this->db->dbprefix('invoice_items').'.amount * '.$this->db->dbprefix('invoice_items').'.quantity * ('.$this->db->dbprefix('invoices').'.tax2_rate/100 * '.$this->db->dbprefix('invoice_items').'.taxable)) FROM '.$this->db->dbprefix('invoice_items').' WHERE '.$this->db->dbprefix('invoice_items').'.invoice_id=' . $invoice_id . ') AS total_tax2', FALSE);
  $this->db->select('(SELECT SUM('.$this->db->dbprefix('invoice_items').'.amount * '.$this->db->dbprefix('invoice_items').'.quantity + ROUND(('.$this->db->dbprefix('invoice_items').'.amount * '.$this->db->dbprefix('invoice_items').'.quantity * ('.$this->db->dbprefix('invoices').'.tax1_rate/100 + '.$this->db->dbprefix('invoices').'.tax2_rate/100) * '.$this->db->dbprefix('invoice_items').'.taxable), 2)) FROM '.$this->db->dbprefix('invoice_items').' WHERE '.$this->db->dbprefix('invoice_items').'.invoice_id=' . $invoice_id . ') AS total_with_tax', FALSE);

我们将如何修改此代码以反映我所在地区的实际税收计划？

谢谢

【问题讨论】：

标签： php codeigniter bamboo invoice

【解决方案1】：

使用内置发票设置更改税费。如果你坚持硬编码。你可以这样做：

<?php 
$customTaxRate_1 = 15;
$customTaxRate_2 = 25; //Norwegian sales tax phew :( But free health care :)
$this->db->select('(SELECT SUM('.$this->db->dbprefix('invoice_items').'.amount * '.$this->db->dbprefix('invoice_items').'.quantity * ('.$this->db->dbprefix('invoices').'.'.$customTaxRate_1.'/100 * '.$this->db->dbprefix('invoice_items').'.taxable)) FROM '.$this->db->dbprefix('invoice_items').' WHERE '.$this->db->dbprefix('invoice_items').'.invoice_id=' . $invoice_id . ') AS total_tax1', FALSE);
$this->db->select('(SELECT SUM('.$this->db->dbprefix('invoice_items').'.amount * '.$this->db->dbprefix('invoice_items').'.quantity * ('.$this->db->dbprefix('invoices').'.'.$customTaxRate_2.'/100 * '.$this->db->dbprefix('invoice_items').'.taxable)) FROM '.$this->db->dbprefix('invoice_items').' WHERE '.$this->db->dbprefix('invoice_items').'.invoice_id=' . $invoice_id . ') AS total_tax2', FALSE);
$this->db->select('(SELECT SUM('.$this->db->dbprefix('invoice_items').'.amount * '.$this->db->dbprefix('invoice_items').'.quantity + ROUND(('.$this->db->dbprefix('invoice_items').'.amount * '.$this->db->dbprefix('invoice_items').'.quantity * ('.$this->db->dbprefix('invoices').'.'.$customTaxRate_1.'/100 + '.$this->db->dbprefix('invoices').'.'.$customTaxRate_2.'/100) * '.$this->db->dbprefix('invoice_items').'.taxable), 2)) FROM '.$this->db->dbprefix('invoice_items').' WHERE '.$this->db->dbprefix('invoice_items').'.invoice_id=' . $invoice_id . ') AS total_with_tax', FALSE);
?>

请确保正确测试。我对软件不熟悉。我的回答是基于您提供的代码。

【讨论】：