Php 将0作为价格存储在Cart codeigniter类中
在我的应用程序中,我的产品中既有免费票也有付费票,用户可以添加免费票和付费票。如果给定的价格为0,Cart类将无法添加产品。如果价格为0,要在购物车中添加产品,我必须扩展购物车类,但没有任何效果。谢谢你的帮助Php 将0作为价格存储在Cart codeigniter类中,php,codeigniter,cart,extends,Php,Codeigniter,Cart,Extends,在我的应用程序中,我的产品中既有免费票也有付费票,用户可以添加免费票和付费票。如果给定的价格为0,Cart类将无法添加产品。如果价格为0,要在购物车中添加产品,我必须扩展购物车类,但没有任何效果。谢谢你的帮助 <?php class MY_Cart extends CI_Cart { function __construct() { parent::__construct(); } fu
<?php
class MY_Cart extends CI_Cart
{
function __construct()
{
parent::__construct();
}
function insert_item($items = array())
{
// Was any cart data passed? No? Bah...
if ( ! is_array($items) OR count($items) == 0)
{
log_message('error', 'The insert method must be passed an array containing data.');
return FALSE;
}
$save_cart = FALSE;
if (isset($items['id']))
{
if (($rowid = $this->_insert_item($items)))
{
$save_cart = TRUE;
}
}
else
{
foreach ($items as $val)
{
if (is_array($val) AND isset($val['id']))
{
if ($this->_insert_item($val))
{
$save_cart = TRUE;
}
}
}
}
// Save the cart data if the insert was successful
if ($save_cart == TRUE)
{
$this->_save_cart();
return isset($rowid) ? $rowid : TRUE;
}
return FALSE;
}
function _insert_item($items = array())
{
// Was any cart data passed? No? Bah...
if ( ! is_array($items) OR count($items) == 0)
{
log_message('error', 'The insert method must be passed an array containing data.');
return FALSE;
}
// --------------------------------------------------------------------
// Does the $items array contain an id, quantity, price, and name? These are required
if ( ! isset($items['id']) OR ! isset($items['qty']) OR ! isset($items['price']) OR ! isset($items['name']))
{
log_message('error', 'The cart array must contain a product ID, quantity, price, and name.');
return FALSE;
}
// --------------------------------------------------------------------
// Prep the quantity. It can only be a number. Duh...
$items['qty'] = trim(preg_replace('/([^0-9])/i', '', $items['qty']));
// Trim any leading zeros
$items['qty'] = trim(preg_replace('/(^[0]+)/i', '', $items['qty']));
// If the quantity is zero or blank there's nothing for us to do
if ( ! is_numeric($items['qty']) OR $items['qty'] == 0)
{
return FALSE;
}
if ( ! preg_match("/^[".$this->product_id_rules."]+$/i", $items['id']))
{
log_message('error', 'Invalid product ID. The product ID can only contain alpha-numeric characters, dashes, and underscores');
return FALSE;
}
if ( ! preg_match("/^[".$this->product_name_rules."]+$/i", $items['name']))
{
log_message('error', 'An invalid name was submitted as the product name: '.$items['name'].' The name can only contain alpha-numeric characters, dashes, underscores, colons, and spaces');
return FALSE;
}
// --------------------------------------------------------------------
// Prep the price. Remove anything that isn't a number or decimal point.
$items['price'] = trim(preg_replace('/([^0-9\.])/i', '', $items['price']));
// Is the price a valid number?
if ( ! is_numeric($items['price']))
{
log_message('error', 'An invalid price was submitted for product ID: '.$items['id']);
return FALSE;
}
if (isset($items['options']) AND count($items['options']) > 0)
{
$rowid = md5($items['id'].implode('', $items['options']));
}
else
{
$rowid = md5($items['id']);
}
// --------------------------------------------------------------------
// Now that we have our unique "row ID", we'll add our cart items to the master array
// let's unset this first, just to make sure our index contains only the data from this submission
unset($this->_cart_contents[$rowid]);
// Create a new index with our new row ID
$this->_cart_contents[$rowid]['rowid'] = $rowid;
// And add the new items to the cart array
foreach ($items as $key => $val)
{
$this->_cart_contents[$rowid][$key] = $val;
}
// Woot!
return $rowid;
}
更改数字的格式
另外,为什么要使用preg_match来检查价格的数值,php中有很多函数可以用来检查数字,比如try
is_numeric($items['price'])
您可以在第198行对此进行注释
$items['qty'] = trim(preg_replace('/(^[0]+)/i', '', $items['qty']));
将0转换为数字格式可以解决您的问题吗?如何将0转换为数字格式?数字格式($priceVariable,2,“,”,“,”),它将值0转换为.00。它还修剪前导的0。不走运。它将值0转换为.00。它还修剪前导的0。不走运。试试回音数字_格式(0,2,',',')//0.00可能是您有问题,请逐行调试,以便将0.00转换为.00。然后,取.00并将其存储在数据库中。但在读取或更新时,它不会输入新值。出现了一些问题。price is float的db中字段的数据类型是什么?实际上我正在序列化product details数组并将其存储在列中。
$items['qty'] = trim(preg_replace('/(^[0]+)/i', '', $items['qty']));