Question

我想知道是否有人可以帮我将购物车保存到数据库中？香港专业教育学院在网上看了但没有发现任何东西我试图在用户将项目添加到购物车后将订购表格（对于模拟餐馆）保存到数据库，然后进入付费功能，该功能已经将他们引导至paypal屏幕。所以基本上，我试图保存用户选择的菜肴和数据库的价格/数量，地址以及订单ID。在数据库中，我有一个名为dish（Id，name，Description，Price and Quantity）的表。非常感谢下面是php会话代码。

<?php

session_start();

$page = 'ordering.php';


mysql_connect('localhost','root','') or die(mysql_error());
mysql_select_db ('cart') or die (mysql_error());

if (isset($_GET['add'])) {
    $quantity = mysql_query('SELECT id, quantity FROM dishes WHERE id='.mysql_real_escape_string((int)$_GET['add']));
    while ($quantity_row = mysql_fetch_assoc($quantity)){
        if ($quantity_row['quantity']!=$_SESSION['cart_'.(int)$_GET['add']]){
            $_SESSION["cart_".(int)$_GET['add']]+='1';

        }
    }
    header('Location: '.$page) ;
}

if (isset($_GET['remove'])) {
    $_SESSION['cart_'.(int)$_GET ['remove']]--;
    header('Location: '.$page) ;
}

if (isset($_GET['delete'])) {
    $_SESSION['cart_'.(int)$_GET ['delete']]='0';
    header('Location: '.$page) ;
}



function dishes(){
    $get = mysql_query('SELECT id, name, description, price FROM dishes WHERE quantity > 0 ORDER BY id DESC');
    if (mysql_num_rows($get)==0) {
        echo "There are no dishes to display!";
    }
    else {

        while ($get_row = mysql_fetch_assoc($get)) {

            echo '<p>'.$get_row['name'].'<br />'.$get_row['description'].'<br />&euro;'.number_format($get_row['price'], 2).' <a href="cart.php?add='.$get_row['id'].'"> Add</a></p>';
        }
    }
}



function cart() {
    $total = 0;
    foreach($_SESSION as $name => $value) {
        if ($value>0) {
            if (substr ($name, 0, 5)=='cart_'){

                $id = substr($name, 5, strlen ($name)-5);
                $get = mysql_query('SELECT id, name, price FROM dishes WHERE id='.mysql_real_escape_string((int)$id)) ;

                while ($get_row = mysql_fetch_assoc($get)) {

                    $sub = $get_row['price']*$value;
                    echo $get_row['name'].' x '.$value.' @ &euro;'.number_format($get_row['price'], 2). ' = &euro;'.number_format($sub, 2).' <a href="cart.php?remove='.$id.'">[-]</a> <a href="cart.php?add='.$id.'">[+]</a> <a href="cart.php?delete='.$id.'">[Delete]</a><br />';
                }
            }
            $total += $sub;
        }
    }
    if ($total == 0) {
        echo "no items.";
    }
    else {
        echo 'Total: &euro;'.number_format($total, 2).'</p>';


?>

<html>
<p> 
<form action='viewcart.php' method='POST'>
<input type='submit' name='view' value='Confirm'>
</p>

    <?php
    }
}
?>

这是用于显示菜肴和购物车的html文件。

<div class="callout">
<aside class="sidebar">
<br />
<fieldset>
<?php cart(); ?>
</fieldset>
</div>
<br />
<?php dishes (); ?>
</body>
<?php include 'footer.html'; ?>
</html>

我试图保存它，但即时通讯获得每个项目的ID，我想要每个订单的ID，我也想要总价但它回来空了

这是我插入数据库的代码

function orders() {

    foreach($_SESSION as $name => $value) {
        if ($value !=0) {
            if (substr ($name, 0, 5)=='cart_'){
//-5 so it = to the id number
            $id = substr($name, 5, strlen ($name)-5);   
            $get = mysql_query('SELECT id, name, price FROM dishes WHERE id='.mysql_real_escape_string((int)$id));
                while ($Get_row = mysql_fetch_assoc($get)) {


                    echo '<input type="text" name="item_name_'.$num.'" value="'.$Get_row['name'].'">';
                    echo '<input type="text" name="amount_'.$num.'" value="'.$Get_row['price'].'">';
                    echo '<input type="text" name="quantity_'.$num.'"value="'.$value.'">';
                    echo '<input type="text" name="total_'.$num.'"value="'.$total.'">';


                if(mysql_query("INSERT INTO orders (name,quantity,price) VALUES ('$name','$value','$price')"))
                echo"successfully inserted";
                else
                echo "failed";
                        }


            }   
        }
    }
}

Answer 1

您需要订单表和订单明细表，当客户下订单时，您

插入新订单，其中包含客户信息和新订单，已支付金额，....

将每个购物车项目，数量，价格插入详细信息表格，订单ID

清除会话内容。

保存订单购物车会话到数据库

1 个答案: