Question

我是新手，我正在创建一个带购物车的网站。我有一个主登录页面，如果他们试图从这个页面登录，已经将用户重定向到主页，没有问题。但是我有另一个页面（结账页面），如果用户选择了要购买但尚未登录的项目，则将用户引导至登录页面，在从此页面登录后，它会从基因上重定向到主页。如果用户从这里登录，怎么能让它回到结账页面？

if (count($_SESSION['prodquan']) != 0)
{
    print "<table border='1' align='center' width='50%'>";
    print "<tr><td colspan='5' style='color:red'>";
    if (isset($_SESSION['username'])) print 'Hello ' . $_SESSION['username'];
    print "</td></tr>";
    print "<caption style='font-size:20;color:red'>Shopping Cart</caption>";
    print "<tr>";
    print "<td>Product Id</td><td>Product Description</td><td>Quantity</td><td>Price</td><td>Cost</td></tr>";
    foreach ($_SESSION['prodquan'] as $prod=>$quan)
    {
        $query = "select productdescription, price from product where productid = $prod";
        $result = mysqli_query($conn, $query);
        $row = mysqli_fetch_array($result);
        $cost = $row[1]*$quan;
        print "<tr><td>$prod</td><td>$row[0]</td><td>$quan</td><td>$row[1]</td><td>$cost</td></tr>";
        $_SESSION['totalcost'] += $cost;
        mysqli_free_result($result);
    }
    print "<tr align='right'><td colspan='4'>Total Cost:</td><td>" . $_SESSION['totalcost'] . "</td></tr>";
    print "</table>";
    print "<table border='0' width='50%' align='center'>";
    print "<tr rowspan='2'>";
    print "<td align='center'><a href='checkout.php?payment=yes'>Payment</a>&nbsp&nbsp<a href='validpage.php'>Products</a>&nbsp&nbsp<a href='logout.php'>logout</a></td>";
    print "</tr>";
    print "</table>";
}
else
{
    $errormessage = " The shopping cart is empty";
    header("location:validpage.php?errormsg=$errormessage");
    exit();
}

if (@$_GET['payment'] == "yes")
{
    if (!isset($_SESSION['username']))
    {
        $errormessage = "Please login";
        header("location:http://localhost/shoppingcart/?page_id=5?errormsg=$errormessage");
        exit();
    }
    //$_SESSION['payment'] = "yes";
    print "<td align='center'><a href='checkout.php?credit=yes'>Credit Card</a>&nbsp&nbsp<a href='checkout.php?cheque=yes'>Cheque</a>&nbsp&nbsp<a href='checkout.php?american=yes'>American Express</a></td>";
    //unset($_GET['payment']);
}

非常感谢

Answer 1

您可以使用$_SERVER['HTTP_REFERER']来检查用户是否来自 CHECKOUT 页面

IN LOGIN PAGE，

if(!empty($_SERVER['HTTP_REFERER'])){
 if($_SERVER['HTTP_REFERER']) == 'YOUR CHECKOUT URL')
    //REDIRECT to CHECKOUT ie $_SERVER['HTTP_REFERER']
 else
   //NORMAL HOME PAGE REDIRECT
}

Answer 2

只需将变量与初始重定向一起传递到登录页面，例如：

header('Location : /login?intent=/checkout/');

然后在您的登录页面上，您可以将$ _GET ['intent']存储到会话中，或将其存储为表单中的隐藏字段：

<form method="POST" action="/login">
    <input type="hidden" name="intent" value="<?php echo !empty($_GET['intent']) ? htmlentities($_GET['intent']) : '/'; ?>" />
    <input type="text" name="email" />
    <input type="password" name="password" />
    <input type="submit" value="Login" />
</form>

然后，在您的表单处理代码中：

if (!empty($_GET['intent']) {
    header('Location: ' . $_GET['intent']);
}

Answer 3

你们是冠军！ :-)我去了CodingAnt因为代码看起来比较容易，因为我刚刚开始，但感谢你输入Jonathan。干杯

如何在登录后重定向到其他页面

3 个答案: