0
背景故事：購物車將不會顯示總計和購物車總計！我通過http://www.youtube.com/playlist?list=PL442E340A42191003得到了代碼，我做了一些修改。購物車中顯示總金額
這是問題的圖像視圖： http://i.imgur.com/tkMrvZv.jpg
我做調試什麼：我試圖呼應變量進行測試，以確保存儲變量調試是正確的價值
的合計（個人產品）和購物車總計需要從 得出$ pricetotal = $ price * $ each_item ['quantity'];
我通過測試回聲$價格調試和echo $ each_item [ '量']都顯示在它的正確價值。不過令我驚訝的是，回聲$ pricetotal顯示結果$ 0.00！然後我開始改變$ pricetotal = $ price + $ each_item ['quantity'];在這種情況下，通過呼應$ pricetotal，我得到了2.（2數量）的價值和總/購物車總成爲$ 2.00。從實驗
結論：
- 個人呼應$價格和$ each_item [ '量'] 顯示右。
- 呼應$ pricetotal只給了$ each_item [ '量']和 沒有$價格的價值存在。
另一方面，PayPal結帳按鈕起作用，PayPal能夠獲取產品金額，數量和總計。
我可以知道什麼是錯？
以下是參考代碼：
<? ob_start(); ?>
<?php
// This file is www.developphp.com curriculum material
// Written by Adam Khoury January 01, 2011
// http://www.youtube.com/view_play_list?p=442E340A42191003
session_start(); // Start session first thing in script
// Script Error Reporting
error_reporting(E_ALL);
ini_set('display_errors', '1');
// Connect to the MySQL database
include "MyOnlineStore/storescripts/connect_to_mysql.php";
?>
<?php
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Section 1 (if user attempts to add something to the cart from the product page)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (isset($_POST['pid'])) {
$pid = $_POST['pid'];
$wasFound = false;
$i = 0;
// If the cart session variable is not set or cart array is empty
if (!isset($_SESSION["cart_array"]) || count($_SESSION["cart_array"]) < 1) {
// RUN IF THE CART IS EMPTY OR NOT SET
$_SESSION["cart_array"] = array(0 => array("item_id" => $pid, "quantity" => 1));
} else {
// RUN IF THE CART HAS AT LEAST ONE ITEM IN IT
foreach ($_SESSION["cart_array"] as $each_item) {
$i++;
while (list($key, $value) = each($each_item)) {
if ($key == "item_id" && $value == $pid) {
// That item is in cart already so let's adjust its quantity using array_splice()
array_splice($_SESSION["cart_array"], $i-1, 1, array(array("item_id" => $pid, "quantity" => $each_item['quantity'] + 1)));
$wasFound = true;
} // close if condition
} // close while loop
} // close foreach loop
if ($wasFound == false) {
array_push($_SESSION["cart_array"], array("item_id" => $pid, "quantity" => 1));
}
}
header("location: cart.php");
exit();
}
?>
<?php
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Section 2 (if user chooses to empty their shopping cart)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (isset($_GET['cmd']) && $_GET['cmd'] == "emptycart") {
unset($_SESSION["cart_array"]);
}
?>
<?php
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Section 3 (if user chooses to adjust item quantity)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (isset($_POST['item_to_adjust']) && $_POST['item_to_adjust'] != "") {
// execute some code
$item_to_adjust = $_POST['item_to_adjust'];
$quantity = $_POST['quantity'];
$quantity = preg_replace('#[^0-9]#i', '', $quantity); // filter everything but numbers
if ($quantity >= 100) { $quantity = 99; }
if ($quantity < 1) { $quantity = 1; }
if ($quantity == "") { $quantity = 1; }
$i = 0;
foreach ($_SESSION["cart_array"] as $each_item) {
$i++;
while (list($key, $value) = each($each_item)) {
if ($key == "item_id" && $value == $item_to_adjust) {
// That item is in cart already so let's adjust its quantity using array_splice()
array_splice($_SESSION["cart_array"], $i-1, 1, array(array("item_id" => $item_to_adjust, "quantity" => $quantity)));
} // close if condition
} // close while loop
} // close foreach loop
}
?>
<?php
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Section 4 (if user wants to remove an item from cart)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (isset($_POST['index_to_remove']) && $_POST['index_to_remove'] != "") {
// Access the array and run code to remove that array index
$key_to_remove = $_POST['index_to_remove'];
if (count($_SESSION["cart_array"]) <= 1) {
unset($_SESSION["cart_array"]);
} else {
unset($_SESSION["cart_array"]["$key_to_remove"]);
sort($_SESSION["cart_array"]);
}
}
?>
<?php
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Section 5 (render the cart for the user to view on the page)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
$cartOutput = "";
$cartTotal = "";
$pp_checkout_btn = '';
$product_id_array = '';
if (!isset($_SESSION["cart_array"]) || count($_SESSION["cart_array"]) < 1) {
$cartOutput = "<h2 align='center'>Your shopping cart is empty</h2>";
} else {
// Start PayPal Checkout Button
$pp_checkout_btn .= '<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="upload" value="1">
<input type="hidden" name="business" value="[email protected]">';
// Start the For Each loop
$i = 0;
foreach ($_SESSION["cart_array"] as $each_item) {
$item_id = $each_item['item_id'];
$sql = mysql_query("SELECT * FROM bag WHERE id='$item_id' LIMIT 1");
while ($row = mysql_fetch_array($sql)) {
$product_name = $row["title"];
$price = $row["cprice"];
$details = $row["description"];
$image = $row["image"];
}
$pricetotal = $price * $each_item['quantity'];
$cartTotal = $pricetotal + $cartTotal;
setlocale(LC_MONETARY, "en_US");
$pricetotal = money_format("%10.2n", $pricetotal);
// Dynamic Checkout Btn Assembly
$x = $i + 1;
$pp_checkout_btn .= '<input type="hidden" name="item_name_' . $x . '" value="' . $product_name . '">
<input type="hidden" name="amount_' . $x . '" value="' . $price . '">
<input type="hidden" name="quantity_' . $x . '" value="' . $each_item['quantity'] . '"> ';
// Create the product array variable
$product_id_array .= "$item_id-".$each_item['quantity'].",";
// Dynamic table row assembly
$cartOutput .= "<tr>";
$cartOutput .= '<td><a href="product.php?id=' . $item_id . '">' . $product_name . '</a><br /><img src="admin/product/uploaded_files/' . $image . '" alt="' . $product_name. '" width="40" height="52" border="1" /></td>';
$cartOutput .= '<td>' . $details . '</td>';
$cartOutput .= '<td>$' . $price . '</td>';
$cartOutput .= '<td><form action="cart.php" method="post">
<input name="quantity" type="text" value="' . $each_item['quantity'] . '" size="1" maxlength="2" />
<input name="adjustBtn' . $item_id . '" type="submit" value="change" />
<input name="item_to_adjust" type="hidden" value="' . $item_id . '" />
</form></td>';
// $cartOutput .= '<td>' . $each_item['quantity'] . '</td>';
$cartOutput .= '<td>' . $pricetotal . '</td>';
$cartOutput .= '<td><form action="cart.php" method="post"><input name="deleteBtn' . $item_id . '" type="submit" value="X" /><input name="index_to_remove" type="hidden" value="' . $i . '" /></form></td>';
$cartOutput .= '</tr>';
$i++;
}
setlocale(LC_MONETARY, "en_US");
$cartTotal = money_format("%10.2n", $cartTotal);
$cartTotal = "<div style='font-size:18px; margin-top:12px;' align='right'>Cart Total : ".$cartTotal." SGD</div>";
// Finish the Paypal Checkout Btn
$pp_checkout_btn .= '<input type="hidden" name="custom" value="' . $product_id_array . '">
<input type="hidden" name="notify_url" value="https://www.yoursite.com/storescripts/my_ipn.php">
<input type="hidden" name="return" value="https://www.yoursite.com/checkout_complete.php">
<input type="hidden" name="rm" value="2">
<input type="hidden" name="cbt" value="Return to The Store">
<input type="hidden" name="cancel_return" value="https://www.yoursite.com/paypal_cancel.php">
<input type="hidden" name="lc" value="SG">
<input type="hidden" name="currency_code" value="SGD">
<input type="image" src="http://www.paypal.com/en_US/i/btn/x-click-but01.gif" name="submit" alt="Make payments with PayPal - its fast, free and secure!">
</form>';
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<link rel="shortcut icon" href="../../assets/ico/favicon.png">
<title>Homepage - Bagnista</title>
<!-- Bootstrap core CSS -->
<link href="css/bootstrap.css" rel="stylesheet">
<!-- HTML5 shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="../../assets/js/html5shiv.js"></script>
<script src="../../assets/js/respond.min.js"></script>
<![endif]-->
</head>
<body>
<?php
if (empty($_SESSION['user']))
{
include_once("header.php");
}
else {
include_once("header2.php");
}?>
<div class="page-header">
<div class="container">
<br />
<table width="100%" border="1" cellspacing="0" cellpadding="6">
<tr>
<td width="18%" bgcolor="#C5DFFA"><strong>Product</strong></td>
<td width="45%" bgcolor="#C5DFFA"><strong>Product Description</strong></td>
<td width="10%" bgcolor="#C5DFFA"><strong>Unit Price</strong></td>
<td width="9%" bgcolor="#C5DFFA"><strong>Quantity</strong></td>
<td width="9%" bgcolor="#C5DFFA"><strong>Total</strong></td>
<td width="9%" bgcolor="#C5DFFA"><strong>Remove</strong></td>
</tr>
<?php echo $cartOutput; ?>
<!-- <tr>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr> -->
</table>
<?php echo $cartTotal; ?>
<br />
<br />
<?php echo $pp_checkout_btn; ?>
<br />
<br />
<a href="cart.php?cmd=emptycart"><button type="button" class="btn btn-warning">Click here to empty Shopping Cart!</button</a>
</div>
<br /> <? echo $pricetotal?> // code for debugging purpose
</div>
<?php include_once("footer.php");?>
<? ob_flush(); ?>
</html>
你是怎麼得到呼應價格變量的時候，我的意思是正確的格式和類型 – Aladdin