我正在编写一个代码，其中一个php页面将值发送到第二页，而第二页用户再次添加一些值并将它们重定向到另一个将执行MySQL查询的页面。我使用require函数来包含第二个文件，但是当我尝试处理第三个页面时，它给了我未定义的索引错误。
我的代码如下：第一个名为display.php的文件
<html lang=en>
<head>
<title> Booking</title>
</head>
<body>
<div class="row">
<div class="col-md-3">
</div>
<div class="col-md-6" align="center">
<div class="model-content" align= "center">
<form method="POST" action="payment.php">
<input type="date" name="booking_start" required>
<input type="date" name="booking_end" required>
<input type="time" name="booking_start_time" required>
<input type="time" name="booking_end_time" required>
<?php
//we create a table
echo "<table background='img/parkingimg.png'>";
// create table th
echo "<tr > <th> Parking Slot No </th> <th> Status </th>";
$sql=" select ParkingSlotNo,Status from fleming_dwing ";
$st=$conn->prepare($sql);
$st->execute();
$total=$st->rowCount();//get the number of rows returned
if($total < 1 )
{//if no row was returned
echo "<tr> <td style> No Data: DataBase Empty </td> ";//print out error message
echo "<td> No Data: DataBase Empty </td> ";//print out error message
}
else
{
while($res = $st->fetchObject()){//loop through the returned rows
echo "<tr>";
if($res->ParkingSlotNo and $res->Status=='OCCUPIED')
{
echo "<td> $res->ParkingSlotNo </td> ";
echo "<td> <img src='img/occupied.png'/> </td>";
echo"<td><a href=''> </a> </td>";
}
elseif($res->ParkingSlotNo and $res->Status=='RESERVED')
{
echo "<td> $res->ParkingSlotNo </td> ";
echo "<td> <img src='img/registered.png'/> </td>";
echo"<td><a href=''> </a> </td>";
}
else
{
echo "<td> $res->ParkingSlotNo </td> ";
echo "<td> <img src='img/vacant.png'> </td>";
echo"<td><input name='parkingslot' type='checkbox' value='$res->ParkingSlotNo'></td>";
}
echo"</tr>";
}
}
?>
</table>
<input type="submit" value="Submit">
</form>
</div>
</div>
</body>
</html>
我的第二个文件如下文件名：payment.php
<?php
require_once ('navbar.php');
require_once ('dbconfigpdo.php');
$parkingslot = $_POST['parkingslot'];
$booking_start=$_POST['booking_start'];
$booking_end=$_POST['booking_end'];
$booking_start_time=$_POST['booking_start_time'];
$booking_end_time=$_POST['booking_end_time'];
session_start();
$_SESSION['parkingslot'] = $parkingslot;
$_SESSION['booking_start'] = $booking_start;
$_SESSION['booking_end'] = $booking_end;
$_SESSION['booking_start_time'] = $booking_start_time;
$_SESSION['booking_end_time'] = $booking_end_time;
//$_SESSION['price'] = $price;
$a = new DateTime($booking_start_time);
$b = new DateTime($booking_end_time);
$interval = $a->diff($b);
echo $duration=$interval->format("%H");
echo $duration;
$price = '3' * $duration;
echo $price;
echo $parkingslot;
?>
<html>
<script type="text/javascript" src="https://js.stripe.com/v2/"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script type="text/javascript">
//set your publishable key
Stripe.setPublishableKey('pk_test_ApEdDkstpR0xRuASqSbz0fn9');
//callback to handle the response from stripe
function stripeResponseHandler(status, response) {
if (response.error) {
//enable the submit button
$('#payBtn').removeAttr("disabled");
//display the errors on the form
$(".payment-errors").html(response.error.message);
} else {
var form$ = $("#paymentFrm");
//get token id
var token = response['id'];
//insert the token into the form
form$.append("<input type='hidden' name='stripeToken' value='" + token + "' />");
//submit form to the server
form$.get(0).submit();
}
}
$(document).ready(function()
{
//on form submit
$("#paymentFrm").submit(function(event)
{
//disable the submit button to prevent repeated clicks
$('#payBtn').attr("disabled", "disabled");
//create single-use token to charge the user
Stripe.createToken({
number: $('.card-number').val(),
cvc: $('.card-cvc').val(),
exp_month: $('.card-expiry-month').val(),
exp_year: $('.card-expiry-year').val()
}, stripeResponseHandler);
//submit from callback
return false;
});
});
</script>
<h1>Payment</h1>
<!-- display errors returned by createToken -->
<span class="payment-errors"></span>
<!-- stripe payment form -->
<form action="paymentsubmit.php" method="POST" id="paymentFrm">
<p>
<label>Name</label>
<input type="text" name="name" size="50" />
</p>
<p>
<label>Email</label>
<input type="text" name="email" size="50" />
</p>
<p>
<label>Card Number</label>
<input type="text" name="card_num" size="20" autocomplete="off" class="card-number" />
</p>
<p>
<label>CVC</label>
<input type="text" name="cvc" size="4" autocomplete="off" class="card-cvc" />
</p>
<p>
<label>Expiration (MM/YYYY)</label>
<input type="text" name="exp_month" size="2" class="card-expiry-month"/>
<span> / </span>
<input type="text" name="exp_year" size="4" class="card-expiry-year"/>
</p>
<button type="submit" id="payBtn">Submit Payment</button>
</form><strong></strong>
</html>
最后第三个文件是paymentsubmit.php
<?php
require_once ('payment.php');
require_once ('dbconfigpdo.php');
echo $parkingslot;
?>
请帮帮我
它给我带来了错误。
( ! ) Notice: Undefined index: parkingslot in C:\wamp64\www\PROJECT\payment.php on line 5
( ! ) Notice: Undefined index: booking_start in C:\wamp64\www\PROJECT\payment.php on line 6
( ! ) Notice: Undefined index: booking_end in C:\wamp64\www\PROJECT\payment.php on line 7
( ! ) Notice: Undefined index: booking_start_time in C:\wamp64\www\PROJECT\payment.php on line 8
( ! ) Notice: Undefined index: booking_end_time in C:\wamp64\www\PROJECT\payment.php on line 9
我可以在第二页（付款）上看到并打印会话变量，但是当我向paymentsubmit页面提交详细信息时，我无法获得值，我的意思是当我尝试打印会话变量时，它显示我在变量中为null并抛出我以上错误。
答案 0 :(得分：0)
我认为paymentsubmit.php是您实际处理付款的地方，在这种情况下，您肯定不希望包含payment.php，因为这会创建新的付款提交表单。 paymentsubmit.php应该按照你在其中一条评论中的说法开始：
<?php
require_once ('dbconfigpdo.php');
session_start();
$parkingslot= $_SESSION['parkingslot'];
$booking_start = $_SESSION['booking_start'];
$booking_end = $_SESSION['booking_end'];
$booking_start_time = $_SESSION['booking_start_time'];
$booking_end_time = $_SESSION['booking_end_time'];
$price = $_SESSION['price'];
// read new POST variables (save in $_SESSION if required)
$name = $_SESSION['name'] = $_POST['name'];
$email = $_SESSION['email'] = $_POST['email'];
$card_num = $_SESSION['card_num'] = $_POST['card_num'];
$cvc = $_SESSION['cvc'] = $_POST['cvc'];
$exp_month = $_SESSION['exp_month'] = $_POST['exp_month'];
$exp_year = $_SESSION['exp_year'] = $_POST['exp_year'];
// process data
echo $parkingslot;
?>
请注意，您可能应该检查session_start()和payment.php中paymentsubmit.php的结果。