购物车/购物篮会话不会进入数据库:PHP MySQL
我正在用php/mysql编写一个程序,在该程序中,登录用户使用积分系统通过购物车订购物品(不涉及金钱、paypal、信用卡付款、运费税等-仅积分)。我的php知识是从初级到中级的 我有以下两个脚本:购物车/购物篮会话不会进入数据库:PHP MySQL,php,mysql,session,variables,shopping-cart,Php,Mysql,Session,Variables,Shopping Cart,我正在用php/mysql编写一个程序,在该程序中,登录用户使用积分系统通过购物车订购物品(不涉及金钱、paypal、信用卡付款、运费税等-仅积分)。我的php知识是从初级到中级的 我有以下两个脚本: 名为view_cart.php的购物车/购物篮 这很好(如果他们没有足够的点数,则禁用签出) 订单提交到名为submit\u Order.php的数据库 我在将购物车会话链接到提交订单页面/数据库时遇到问题。我收到第一条错误消息,但它在orders表下创建了一个新订单,但仅使用登录的用户ID号,而
<?php //view_cart.php
$page_title = 'ViewCart';
include ('./includes/header.html');
if (!isset($_SESSION['users_id'])) {
$url = 'http://' . $_SERVER['HTTP_HOST']
. dirname($_SERVER['PHP_SELF']);
if ((substr($url, -1) == '/') OR (substr($url, -1) == '\\') ) {
$url = substr ($url, 0, -1);
}
$url .= '/login.php';
ob_end_clean();
header("Location: $url");
exit();
}
$rwp = $_SESSION['points'];
$problem = FALSE;
if (isset($_POST['submitted']))
{
foreach ($_POST['qty'] as $k => $v) {
$pid = (int) $k;
$qty = (int) $v;
if ( $qty == 0 ) {
unset ($_SESSION['cart'][$pid]);
} elseif ( $qty > 0 ) {
$_SESSION['cart'][$pid] ['quantity'] = $qty;
}
}
}
$empty = TRUE;
if (isset ($_SESSION['cart'])) {
foreach ($_SESSION['cart'] as $key =>$value) {
if (isset($value)) {
$empty = FALSE;
break;
}
}
}
if (!$empty) {
require_once ('mysql_connect.php');
$query = "SELECT users_id, points FROM user_points
WHERE user_points.users_id = users.users_id";
$result = mysql_query($query);
$query = "SELECT products_id, products_name FROM categories, products
WHERE categories.categories_id = products.categories_id AND products.products_id
IN (";foreach ($_SESSION['cart'] as $pid =>$value) {
$query .= $pid . ',';
}
$query = substr ($query, 0, -1) . ') ORDER BY categories.categories_name ASC';
$result = mysql_query($query);
echo '
<table border="0" width="100%" cellspacing="1" cellpadding="5"
align="center">
<tr class="top">
<td align="left" width="46%"><b>Product</b></td>
<td align="right" width="18%"><b>Price</b></td>
<td align="center" width="16%"><b>Qty</b></td>
<td align="right" width="20%"><b>Sub Total</b></td>
</tr>
<form action="view_cart.php" method="post">
';
$total = 0;
while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) {
$subtotal = $_SESSION['cart'][$row
['products_id']]['quantity'] *
$_SESSION['cart'][$row ['products_id']]['price'];
$total += $subtotal;
echo " <tr>
<td align=\"left\">{$row['products_name']}</td>
<td align=\"right\">{$_SESSION['cart'][$row['products_id']] ['price']} pts</td>
<td align=\"center\"><input type=\"text\" size=\"3\"
name=\"qty[{$row['products_id']}]\"
value=\"{$_SESSION['cart'][$row['products_id']]['quantity']}\" /></td>
<td align=\"right\">" . number_format ($subtotal) . " pts</td>
</tr>\n";
}
mysql_close($dbc);
$str = '<tr class="even">
<td colspan="3" align="right"><b> TOTAL:<b></td>
<td align="right"><b>' . number_format ($total) . ' pts </b></td>
</tr>
</table>
<br />
<div align="center"><input type="submit" name="submit" value="Update" />
<input type="hidden" name="submitted" value="TRUE" />
</form><br /><br /></div>';
if($up >= $total) {
$str .='<a href="submit_order.php">Submit Order</a></p>';
}
else {
$str .='<p>You do not have enough points to proceed to checkout</p>';
}
echo $str;
} else {
echo '<p>Your cart is currently empty.</p>';
}
?>
<?php
include ('./includes/footer.html');
?>
我看不见
session_start();
在这里的任何地方,您是从包含文件的父级调用它吗?我猜您把会话\u start()
放错地方了。必须在
标记之前调用它。是的,它在头html文件中。它应该是第一个调用文件的第一行。我将在查看购物车上尝试此操作,并添加购物车页面,让您知道它是如何运行的。这意味着你把它放在第一个“会话启动()之后”;应该是在我拥有登录用户的会话用户id之后的第一件事,这样只有登录用户才能看到这个脚本,那么bean会出现问题吗?
session_start();