PHP通过href传递会话变量？

Question

first of all, i am only 6 weeks into php and programming in general so bear with me. 首先，我一般只有6周的时间开始学习php和编程，所以请多多包涵。 i'm creating an application that starts on the main page listing ten parts with price and displaying them. 我正在创建一个从主页开始的应用程序，列出了十个价格零件并显示它们。 then you can click on the add part link to kick you to a new area where you select the quantity of that part and then place it in the cart. 然后您可以单击添加零件链接将您踢到一个新区域，在其中选择该零件的数量，然后将其放入购物车。 the cart displays your item, quantity, price etc. I cant figure out how to send the selected part when clicking the link to the getQuantity function where it says...... You have selected....... help and thank you in advance! 购物车会显示您的物品，数量，价格等。单击指向getQuantity函数的链接时，我无法弄清楚如何发送选定的零件，其中显示的内容是……您已选择。先感谢您！

<?php
session_start();


class Part {
    private $partId;
    private $partName;
    private $partPrice;

    public function __construct($partId, $partName, $partPrice) {
        $this->partId = $partId;
        $this->partName = $partName;
        $this->partPrice = $partPrice;
        }
    public function getId() {
        return $this->partId;
    }
    public function getName() {
        return $this->partName;
    }
    public function getPrice() {
        return $this->partPrice;
    }

}
$parts = array(
    1 => new Part (1, "Front Bumper", 199.99),
    2 => new Part (2, "Rear Bumper", 169.990),
    3 => new Part (3, "Front Struts", 219.99),
    4 => new Part (4, "Rear Struts", 219.99),
    5 => new Part (5, "Exhaust", 399.99),
    6 => new Part (6, "Headers", 299.99),
    7 => new Part (7, "Air Intake", 149.99),
    8 => new Part (8, "Turbo", 499.99),
    9 => new Part (9, "Supercharger", 429.99),
    10 => new Part (10, "Oil Pan", 79.99)
);

if (!isset($_SESSION["list"])) $_SESSION["list"] = array();

if (isset($_POST["selectNo"])) {
    displayCart();
    }
elseif (isset($_GET["action"]) and $_GET["action"] == "getQuantity") {
    getQuantity();
}
else {  
    displayList();
}

function displayList() {
    displayPageHeader();
    global $parts;
?>
    <h1 align="center">Parts List</h1>
    <dl align="center">
<?php foreach($parts as $part){ ?>
    <dt>******<?php echo $part->getName() ?>******<dt>
    <dd>$<?php echo number_format($part->getPrice(), 2) ?>
    <a href="midtermMain.php?action=getQuantity&partId=<?php echo $part->getId() ?>" style="text-decoration:none">&nbsp;&nbsp;Add Part To Shopping Cart<a/><br><br>
    </dd>
<?php 
} 
?>
    </dl>
    </body>
</html>
<?php
}

function displayPageHeader() {
?>
<html>
<head>
<style>
th, td {
    border:1px solid gray;
    height:20px;
    width:200px;
    text-align:center;
}
</style>
</head>
    <body>
    <hr>
    <h1 align="center">Welcome to Hayes' After-market Auto Parts Online Warehouse!</h1>
    <br>
    <hr>

<?php
}

function getQuantity() {
    displayPageHeader();
    global $parts;

?>
    <br>
    <p align="center">You have selected the            </p>
    <form align="center" action="midtermMain.php" method="post">
    <label for="quantity">Please select the Quantity you would like.</label>
    <input type="text" size="10" name="selectNo" id="selectNo" placeholder="quantity" value=""/><br>
    <input type="submit" name="submit" id="submit" value="Place in Cart"/>
    </form>
<?php
}

function displayCart() {
    displayPageHeader();
    global $parts;
?>

    <br>
    <table style="border:1px solid gray;border-collapse:collapse;">
        <tr><th>ITEM</th><th>QUANTITY</th><th>UNIT PRICE</th><th>TOTAL PRICE</th></tr>
        <tr><td> </td><td> </td><td> </td><td> </td></tr>
    </table><br><br>
    <caption>ADDRESS ENTRY</caption><br><br>
    <form action="midtermMain.php" method="post">
    <label for="street">STREET</label>
    <input type="text"  name="street" id="street" placeholder="street" value=""/><br>
    <label for="city">CITY</label>
    <input type="text"  name="city" id="city" placeholder="city" value=""/><br>
    <label for="state">STATE</label>
    <select name="state">
    <option value="AL">AL</option>
    <option value="AK">AK</option>
    <option value="AZ">AZ</option>
    <option value="AR">AR</option>
    <option value="CA">CA</option>
    <option value="CO">CO</option>
    <option value="CT">CT</option>
    <option value="DE">DE</option>
    <option value="DC">DC</option>
    <option value="FL">FL</option>
    <option value="GA">GA</option>
    <option value="HI">HI</option>
    <option value="ID">ID</option>
    <option value="IL">IL</option>
    <option value="IN">IN</option>
    <option value="IA">IA</option>
    <option value="KS">KS</option>
    <option value="KY">KY</option>
    <option value="LA">LA</option>
    <option value="ME">ME</option>
    <option value="MD">MD</option>
    <option value="MA">MA</option>
    <option value="MI">MI</option>
    <option value="MN">MN</option>
    <option value="MS">MS</option>
    <option value="MO">MO</option>
    <option value="MT">MT</option>
    <option value="NE">NE</option>
    <option value="NV">NV</option>
    <option value="NH">NH</option>
    <option value="NJ">NJ</option>
    <option value="NM">NM</option>
    <option value="NY">NY</option>
    <option value="NC">NC</option>
    <option value="ND">ND</option>
    <option value="OH">OH</option>
    <option value="OK">OK</option>
    <option value="OR">OR</option>
    <option value="PA">PA</option>
    <option value="RI">RI</option>
    <option value="SC">SC</option>
    <option value="SD">SD</option>
    <option value="TN">TN</option>
    <option value="TX">TX</option>
    <option value="UT">UT</option>
    <option value="VT">VT</option>
    <option value="VA">VA</option>
    <option value="WA">WA</option>
    <option value="WV">WV</option>
    <option value="WI">WI</option>
    <option value="WY">WY</option>
    </select><br>
    <label for="zip">ZIP</label>
    <input type="text"  name="zip" id="zip" placeholder="zip" value=""/><br>
<?php
}

![enter image description here][1]
![enter image description here][2]

Answer 1

尝试：

<p align="center">You have selected the <?php echo ($parts[$_GET['partId']]->getName()); ?>           </p>

PHP通过href传递会话变量？

问题描述

1 个解决方案

解决方案1
0 已采纳 2014-03-16 20:39:12

PHP通过href传递会话变量？

问题描述

1 个解决方案

解决方案1 0 已采纳 2014-03-16 20:39:12

解决方案1
0 已采纳 2014-03-16 20:39:12