【发布时间】：2021-04-09 14:58:00
【问题描述】：
我为电子商务网站构建了一个购物篮/结账系统，并使用会话变量来存储产品名称、价格和数量，并且可以将它们显示在我的结账页面上。 我正在努力将不同的产品添加到购物篮中，当用户转到另一个产品并单击添加到购物篮按钮时，它会从购物篮中删除第一个产品。有谁知道我可以如何更改我的代码，以便可以将不同的产品添加到购物篮中，而无需删除当前在变量中的任何产品。以及如何将数量添加到 URL 中，以便将其添加到购物篮中。数量是产品页面上的一个输入框，用户可以尝试输入产品的数量。
这是我的产品页面 -
<?php
require('includes/application_top.php');
$page_title='Details';
require('includes/site_header.php');
$_GET['prod_ID'];
$product_id = isset($_REQUEST['prod_ID']) ? (int) $_REQUEST['prod_ID'] : 0;
$pound ="£";
?>
<style>
<?php
require('css/prod_details.css');
?>
</style>
<br>
<br>
<br>
<br>
<br>
<?php $product = get_product_details1($freshKickz_conn); ?>
<?php foreach($product as $productdetails) {
?>
<main class="container">
<!-- Left Column / Headphones Image -->
<div class="left-column">
<img data-image="red" class="active" src="<?= htmlspecialchars($productdetails['images']) ?>" style="height: 400px; width: 400px;" alt="">
</div>
<!-- Right Column -->
<div class="right-column">
<!-- Product Description -->
<div class="product-description">
<h1><?= htmlspecialchars($productdetails['prod_Name']) ?></h1>
<p><?= htmlspecialchars($productdetails['prod_Details']) ?></p>
</div>
<!-- Product Pricing -->
<div class="product-price">
<span><?=$pound?><?= htmlspecialchars($productdetails['prod_Price'])?></span>
<a href="basket_page.php?quantity=1&action=add_product&name=<?=$productdetails['prod_Name']?>&price=<?=$productdetails['prod_Price']?>" class="cart-btn">Add to Basket</a>
</div>
<br>
<div class="quantity">
<span>Quantity</span>
<br>
<input type="number" min="1" max="9" step="1" value="1">
</div>
</div>
</main>
<?php
} ?>
<script src="js/prodJS.js"></script>
<script>
$(document).ready(function () {
$('.color-choose input').on('click', function () {
var headphonesColor = $(this).attr('data-image');
$('.active').removeClass('active');
$('.left-column img[data-image = ' + headphonesColor + ']').addClass('active');
$(this).addClass('active');
});
});
</script>
<?php
require('includes/application_bottom.php');
require('includes/site_footer.php');
?>
这是我的购物篮/结帐页面 -
<?php
require('includes/application_top.php');
$page_title='Your Basket';
require('includes/site_header.php');
if ( ! isset($_SESSION['basket'])) {
$_SESSION['basket'] = array();
}
$pound ="£";
$action = $_REQUEST['action'] ?? '';
$err = '';
if($_REQUEST['action']=='add_product'){
$_SESSION['basket'][$_REQUEST['name']]=$_REQUEST['quantity']=$_REQUEST['quantity'];
}
?>
<style>
<?php
require('css/basket.css');
?>
</style>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<div class="row">
<div class="col-75">
<div class="container">
<form action="successful_order.php">
<div class="row">
<div class="col-50">
<h3>Billing Address</h3>
<label for="fname"><i class="fa fa-user"></i> Full Name</label>
<input type="text" id="fname" name="firstname" placeholder="John M. Doe">
<label for="email"><i class="fa fa-envelope"></i> Email</label>
<input type="text" id="email" name="email" placeholder="john@example.com">
<label for="adr"><i class="fa fa-address-card-o"></i> Address</label>
<input type="text" id="adr" name="address" placeholder="542 W. 15th Street">
<label for="city"><i class="fa fa-institution"></i> City</label>
<input type="text" id="city" name="city" placeholder="New York">
<div class="row">
<div class="col-50">
<label for="state">County</label>
<input type="text" id="county" name="county" placeholder="Cheshire">
</div>
<div class="col-50">
<label for="zip">PostCode</label>
<input type="text" id="postcode" name="postcode" placeholder="SK11 6TF">
</div>
</div>
</div>
<div class="col-50">
<h3>Payment</h3>
<label for="fname">Accepted Cards</label>
<div class="icon-container">
<i class="fa fa-cc-visa" style="color:navy;"></i>
<i class="fa fa-cc-amex" style="color:blue;"></i>
<i class="fa fa-cc-mastercard" style="color:red;"></i>
<i class="fa fa-cc-discover" style="color:orange;"></i>
</div>
<label for="cname">Name on Card</label>
<input type="text" id="cname" name="cardname" placeholder="John More Doe">
<label for="ccnum">Credit card number</label>
<input type="text" id="ccnum" name="cardnumber" placeholder="1111-2222-3333-4444">
<label for="expmonth">Exp Month</label>
<input type="text" id="expmonth" name="expmonth" placeholder="September">
<div class="row">
<div class="col-50">
<label for="expyear">Exp Year</label>
<input type="text" id="expyear" name="expyear" placeholder="2018">
</div>
<div class="col-50">
<label for="cvv">CVV</label>
<input type="text" id="cvv" name="cvv" placeholder="352">
</div>
</div>
</div>
</div>
<label>
<input type="checkbox" checked="checked" name="sameadr"> Shipping address same as billing
</label>
<input type="submit" value="Checkout" class="btn">
</form>
</div>
</div>
<div class="col-25">
<div class="container">
<h4>Cart
<span class="price" style="color:black">
<i class="fa fa-shopping-cart"></i>
</span>
</h4>
<br>
<br>
<p><span class="name"><?= $_REQUEST['name'] ?></span> <span class="price"><span class="name"><?= $_REQUEST['quantity'] ?><br></span><?= $pound ?><?= $_REQUEST['price'] ?></span></p>
<hr>
<p>Total <span class="price" style="color:black"><b>$30</b></span></p>
</div>
</div>
</div>
<?php
require('includes/application_bottom.php');
require('includes/site_footer.php');
?>
【问题讨论】：
-
我建议阅读minimal, reproducible examples。这里有大量代码需要处理，其中大部分可能与问题无关。缩小您的问题范围，隔离未按预期工作的代码，然后使用 MRE 编辑您的问题。
-
这听起来很刺耳 - 但看看这段代码，我想说你还没有准备好解决电子商务解决方案，尤其是一个似乎要求卡详细信息的解决方案（因此需要至少通过 PCI 1 级合规性）；如果您只是在学习，我会建议一个“更安全”的项目。