我在维护会话中的变量时遇到问题。我已经确认相同的会话 ID 通过页面导航持续存在，并且我还使用Print_r($_SESSION)来监视变量。
我正在使用四页。
- 索引.php
- 客户信息.php
- custbilling.php
- 确认.php
在第一页上，我使用表单将数据发送到下一页。
<form name="prescreen" action="custinfo.php" method="post">
<label>From DIA</label>
<input name="startlocation" id="fromdia" type="radio" value="From DIA">
<label>To DIA</label>
<input name="startlocation" id="todia" type="radio" value="To DIA">
<label>Choose Location:</label>
City:<input name="city" id="city" type="text" />
<span>or</span><br />
Zipcode:<input name="zipcode" id="zipcode" type="text" />
<h3>When do you need picked up?</h3>
<label>Choose Date:</label>
<input name="date" id="date" type="datetime-local" />
<label>Choose Time:</label>
<input name="time" id="time" type="time" />
<input type="submit" value="Get a Ride Now!" class="textbtn"></input>
</form>
在 custinfo.php 上，然后我在文档的头部使用它：
<?php
session_start();
$_SESSION['testvar'] = 'THIS IS A TEST';
$startlocation = $_POST["startlocation"];
$city = $_POST["city"];
$zipcode = $_POST["zipcode"];
$date = $_POST["date"];
$time = $_POST["time"];
//Assign variables to the Session
$_SESSION['startlocation'] = $startlocation;
$_SESSION['city'] = $city;
$_SESSION['zipcode'] = $zipcode;
$_SESSION['date'] = $date;
$_SESSION['time'] = $time;
?>
变量被正确读入并存储在数组中。然后我在 custinfo.php 页面中使用这个表单：
<form name="customerinfo" action="custbilling.php" method="post">
<label>Contact Name</label>
<input name="contactname" id="contactname" type="text">
<label>Contact Email</label>
<input name="contactemail" id="contactemail" type="text">
<label>Contact Phone</label>
<input name="contactphone" id="contactphone" type="text" />
<?php
if($_SESSION['startlocation'] == "From DIA")
{
echo '<hr />';
echo '<label><b>To Location:</b></label>';
echo 'Address1:<input name="toaddress1" id="toaddress1" type="text" />';
echo 'Address2:<input name="toaddress2" id="toaddress2" type="text" />';
echo 'City:<input name="tocity" id="tocity" type="text" />';
echo 'Zip:<input name="tozip" id="tozip" type="text" />';
echo '<hr />';
}
else
{
echo '<hr />';
echo '<label><b>From Location</b></label>';
echo 'Address1:<input name="fromaddress1" id="fromaddress1" type="text" />';
echo 'Address2:<input name="fromaddress2" id="fromaddress2" type="text" />';
echo 'City:<input name="fromcity" id="fromcity" type="text" />';
echo 'Zip:<input name="fromzip" id="fromzip" type="text" />';
echo '<hr />';
}
?>
<input type="submit" value="Book Your Ride!" class="textbtn"></input>
</form>
在 custbilling.php 页面的顶部，我将所有内容都拉进来，如下所示：
<?php
session_start();
/*Vars from Customer Info */
$contactname = $_POST['contactname'];
$contactemail = $_POST['contactemail'];
$contactphone = $_POST['contactphone'];
if($_SESSION['startlocation'] == "To DIA")
{
$address1 = $_POST['fromaddress1'];
$address2 = $_POST['fromaddress2'];
$city = $_POST['fromcity'];
$zipcode = $_POST['fromzip'];
}
else
{
$address1 = $_POST['toaddress1'];
$address2 = $_POST['toaddress2'];
$city = $_POST['tocity'];
$zipcode =$_POST['tozip'];
}
//Assign Variables to the Session
$_SESSION['contactname'] = $contactname;
$_SESSION['contactemail'] = $contactemail;
$_SESSION['contactphone'] = $contactphone;
$_SESSION['address1']=$address1;
$_SESSION['address2']=$address2;
$_SESSION['city']= $city;
$_SESSION['zipcode'] = $zipcode;
?>
此时，我正在显示如下信息：\
<h1><?php echo $_SESSION['testvar']; ?></h1>
<h2>Travel Information</h2>
<h3>Please fill out this form:</h3>
<p>Direction of Travel: <?php echo $_SESSION['startlocation']; ?></p>
<p>LocationTo: <?php echo $_SESSION['city'] , $_SESSION['zipcode']; ?></p>
<p>Date: <?php echo $_SESSION['date']; ?></p>
<p>Time: <?php echo $_SESSION['time']; ?></p>
<p>Customer Name: <?php echo $_SESSION['contactname']; ?></p>
<p>Customer Email: <?php echo $_SESSION['contactemail']; ?></p>
<p>Customer Phone: <?php echo $_SESSION['contactphone']; ?></p>
<p>Address Information: <br />
<span>Address 1:</span><?php echo $_SESSION['address1']; ?><br />
<span>Address 2:</span><?php echo $_SESSION['address2']; ?><br />
<span>City:</span><?php echo $_SESSION['city']; ?><br />
<span>ZipCode:</span><?php echo $_SESSION['zipcode']; ?><br />
</p>
但是现在保存在数组中的 startlocation 和第一篇文章中的所有变量都被删除了。您还可以看到我用来测试会话是否正常工作的测试变量，以及我$_SESSION['testvar']在所有文件上的正确显示。我最初的代码集是这样的$_SESSION['varname] = $_POST['varname'];，但这产生了同样的问题。所以变量会转到下一页，但不会继续到第三页。
任何帮助将不胜感激。谢谢你。
编辑：这可能是有用的信息：
Result from custinfo.php : bs2rrqoo5u1u5mjerkg54nkcb1 Array ( [startlocation] => From DIA [city] => Denver [zipcode] => [date] => 11/27/2012 [time] => 09:00 [fromaddress1] => [fromaddress2] => [fromcity] => [fromzip] => [toaddress1] => [toaddress2] => [tocity] => [tozip] => [contactname] => [contactemail] => [contactphone] => [address1] => [address2] => [testvar] => THIS IS A TEST [sameaddress] => 1 [billaddress1] => [billaddress2] => [billcity] => [billzip] => [ccnumber] => [ccexp] => [ccsc] => )
Result from custbilling.php : bs2rrqoo5u1u5mjerkg54nkcb1 Array ( [startlocation] => [city] => Aurora [zipcode] => 80017 [date] => [time] => [fromaddress1] => [fromaddress2] => [fromcity] => [fromzip] => [toaddress1] => [toaddress2] => [tocity] => [tozip] => [contactname] => Elijah Gartin [contactemail] => elijah.gartin@gmail.com [contactphone] => 3038804117 [address1] => 124 Test [address2] => [testvar] => THIS IS A TEST [sameaddress] => 1 [billaddress1] => [billaddress2] => [billcity] => [billzip] => [ccnumber] => [ccexp] => [ccsc] => )