Question

我目前正在使用购物车中的php mysql将数据保存到数据库

cart.php

<?php
        foreach($_SESSION['cart'] as $product_id => $quantity) {    


            $sql = sprintf("SELECT prod_name, prod_code, prod_desc, prod_category, prod_price FROM product WHERE prod_id = %d;",
                            $product_id); 

            $result = mysql_query($sql);

            //Only display the row if there is a product (though there should always be as we have already checked)
            if(mysql_num_rows($result) > 0) {

                list($name, $code, $description, $category, $price) = mysql_fetch_row($result);

                $line_cost = $price * $quantity;        //work out the line cost
                $total = $total + $line_cost;           //add to the total cost

                echo "<tr>";

                    echo "<td align=\"center\">$name</td>";
                    echo "<td align=\"center\">$code</td>";
                    echo "<td align=\"center\">$description</td>";
                    echo "<td align=\"center\">$category</td>";
                    echo "<td align=\"center\">$quantity</td>";
                    echo "<td align=\"center\"><a href=\"index.php?page=inso94&action=add&id=$product_id\" class=\"btn btn-info btn-sm btn-fill pull-right\">Add quantity</a></td>";
                    echo "<td align=\"center\"><a href=\"index.php?page=inso94&action=remove&id=$product_id\" class=\"btn btn-warning btn-sm btn-fill pull-right\">Reduce</a></td>";
                    echo "<td align=\"center\">$price</td>";
                    echo "<td align=\"center\">$line_cost</td>";

                echo "</tr>";

            }

        }


        echo "<tr>";
            echo "<td colspan=\"0\" align=\"left\"> <a href=\"index.php?page=inso94&action=empty\" class=\"btn btn-danger btn-sm btn-fill pull-right\">Empty Cart</a></td>";
            echo "<td colspan=\"7\" align=\"right\">Total</td>";
            echo "<td align=\"right\"><b>$total</b></td>";
        echo "</tr>";
        echo "<tr>";
            echo "<td align=\"left\" colspan=\"9\">Note: If quantity becomes <b>'0'</b> it will automatically remove.</td>";
        echo "</tr>";
    echo "</table>";
    ?>
        *<?php
            if (isset($_POST['submit'])){
               $orderid=mysql_insert_id();

                $max=count($_SESSION['cart']);
                for($i=0;$i<$max;$i++){
                    $pid=$_SESSION['cart'][$i]['productid'];
                    $q=$_SESSION['cart'][$i]['quantity'];
                    $total;
                    mysql_query("insert into order_detail values ($orderid,$pid,$q,$total)");
            }
        }
        ?>
        <form action="<?php $_SERVER['PHP_SELF']; ?>" method="POST">    
            <button type="submit" name="submit" class="btn btn-info btn-sm btn-fill pull-right" id="checkout">Buy Now</button>
        </form>*

我想使用表单将数据保存到我的数据库。请帮助我，这是我想要解决的最后一个问题。

Answer 1

你应该使用像yii2这样的MVC框架来为你的应用程序提供更明确的关注点分离。目前，您混合了不易维护的UI和业务代码。此框架还为您提供了ActiveRecords，可以轻松地将配方设备存储到数据库中。

但这是纯PHP的解决方案：

让我们假设你有一个具有字段金额，注释，价格的公式，例如。

<强>表现公式

<form action="storeOrder.php" method="post">
<div class="form-group">
    <label>Amount:</label>
    <input type="text" name="amount">
</div>
<div class="form-group">
    <label>Notes:</label>
    <input type="text" name="notes">
</div>
<div class="form-group">
    <label>Price:</label>
    <input type="text" name="price">
</div>

<强> storeOrder.php

$host = "localhost";
$username = "root";
$password = "";
$database = "my_db";
$dsn = "mysql:host=$host;dbname=$database";

try {

    //establish connection to db
    $conn = new PDO( $dsn, $username, $password );
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    //get inputs from form
    if (isset($_POST['submit'])) {
        $amount = $_POST['amount'];
        $note = $_POST['note'];
        $price = $_POST['price'];
    }

    //insert data into db and escape the form data to a void sql injection attacks
    $sql = "INSERT INTO orders(amount, note, price) VALUES (".
        $conn->quote($name). ",",
        $conn->quote($note). ",",
        $conn->quote($price). ",",
    . ")";

    $result = conn->query($sql);
} catch (PDOException $e) {
    exit("Connection failed: " . $e->getMessage());
}

Answer 2

尝试此查询

insert into order_detail values ('{$orderid}','{$pid}','{$q}','{$total}')

购物车将数据保存到数据库php mysql

2 个答案: