Question

我正在建立一个新的在线比萨订购网站，并希望在我的Web应用程序中显示用户的订单。如何合并会话代码，以便可以在ShoppingCartpage.php上输出用户的订单？

我尝试使用php，html，javascript和sql。

OnlinePizzaOrderingPage.php

    <!DOCTYPE html>
    <html>
    <head>
        <title>Online Pizza Ordering Page</title>
        <link rel="stylesheet" type="text/css" href="mystyle.css">
    </head>
    <body>
    <?php
        session_start();
        $pizzas = array("supreme", "meatlover", "hawaii",         
   "fourseasons","vege");
        $amounts = array("19.95", "19.95", "16.95", "22.95", "15.95");
        if ( !isset($_SESSION["total"]) ) {
            $_SESSION["total"] = 0;
            for ($i=0; $i< count($pizzas); $i++) {
                $_SESSION["qty"][$i] = 0;
                $_SESSION["amounts"][$i] = 0;
            }
        }
        if ( isset($_GET["add"]) ){
            $i = $_GET["add"]{
            $qty = $_SESSION["qty"][$i] + 1;
            $_SESSION["amounts"][$i] = $amounts[$i] * $qty;
            $_SESSION["cart"][$i] = $i;
            $_SESSION["qty"][$i] = $qty;
        }
    ?>
        <h1>Online Pizza Ordering Page</h1>
        <a href="Detailedsauceandquantitypage.php?pizza=supreme">
            <img src="supreme.jpg" width="82" height="86" title="Supreme"         
    alt="Supreme">
        </a>
        <a href="Detailedsauceandquantitypage.php?pizza=meatlover">
            <img src="meatlover.jpg" width="82" height="86"         
    title="Meatlover" alt="Meatlover">
        </a>
        <a href="Detailedsauceandquantitypage.php?pizza=hawaii">
            <img src="hawaii.jpg" width="82" height="86" title="Hawaii"         
    alt="Hawaii">
        </a>
        <a href="Detailedsauceandquantitypage.php?pizza=fourseasons">
            <img src="fourseasons.jpg" width="82" height="86" title="Four 
    Seasons" alt="Four Seasons">
        </a>
        <a href="Detailedsauceandquantitypage.php?pizza=vege">
            <img src="vege.jpg" width="82" height="86" title="Vege" 
    alt="Vege">
        </a>
    </body>
    </html>

ShoppingCartpage.php

    <!DOCTYPE html>
    <html>
    <head>
        <title>Shopping Cart page</title>
        <link rel="stylesheet" type="text/css" href="mystyle.css">
    </head>
    <body>
        <h1>Shopping Cart page</h1>
        <?php
        // define variables and set to empty values
        $bbqPizza = $tomatoPizza = $salsaPizza = "";

        if ( isset( $_POST['submit'] ) ) {
            $pizza = $_POST['pizza']; //value from first page
            $bbq = $_POST["bbqPizza"];
            $tomato = $_POST["tomatoPizza"];
            $salsa = $_POST["salsaPizza"];
            echo $bbq . " " . $pizza . " pizzas with bbq sauce, " .         
    $tomato . " " . $pizza . " pizzas with tomato sauce and " . $salsa . " 
    " . $pizza . " Spizzas with salsa sauce.";
        }
        ?>
        <br>
        <a href="OnlinePizzaOrderingPage.html">Add more pizzas to cart</a>
        <a href="Checkoutpage.html">Go to checkout</a>
    </body>
    </html>

Detailedsauceandquantitypage.php

    <!DOCTYPE html>
    <html>
    <head>
        <script src="script.js"></script>
        <title>Detailed sauce and quantity page</title>
        <link rel="stylesheet" type="text/css" href="mystyle.css">
    </head>
    <body>
        <h1>Detailed sauce and quantity page</h1>
        <form action="ShoppingCartpage.php" method="POST">
            <!-- set form value to retrieve and pass the selected pizza to         
    the cart -->
            <input type="hidden" name="pizza" value="<?php echo         
    htmlspecialchars($_GET['pizza'], ENT_QUOTES, 'UTF-8', false); ?>">

            <img src="bbq.jpg" alt="BBQ">
            <label for="numberOfSauces">Number of Pizzas (0-100):</label>
            <input type="number" name="bbqPizza" min="0" max="100"         
    value="0">
            <br>
                    <img src="tomato.jpg" alt="Tomato">
            <label for="numberOfSauces">Number of Pizzas (0-100):</label>
            <input type="number" name="tomatoPizza" min="0" max="100" 
    value="0"> 
            <br>
            <img src="salsa.jpg" alt="Salsa">
            <label for="numberOfSauces">Number of Pizzas (0-100):</label>
            <input type="number" name="salsaPizza" min="0" max="100" 
    value="0"> 
            <br>
            <input type="submit" value="Add to cart" name="submit">
            <br>
        </form>
    </body>
    </html>

我希望用户的订单显示在彼此下方。实际结果只是显示的是第一顺序，第二顺序将覆盖第一顺序...我希望第二顺序低于第一顺序。

如何在多个提交期间使用会话代码保留值？

0 个答案: