Unable to filter a recordset using a session variable

I have a volunteer application page and when the volunteer presses <Submit> their info is saved in a MySQl db table and a session variable is created containing the primary key of their record in the table, control is then passed to a "success page". The success page can access the session variable (I proved this by displaying the session variable on the success page) so my next step was to create a recordset in the success page with a filter using the session variable to select the appropriate row in the table, allowing me to display to the volunteer the info they submitted.
I set up a test success page which displays the session variable and one field of the volunteer info. When I test this I see the session variable displayed but the corresponding volunteer info field from the recordset is not displayed.
The volunteer application page is here www.hollisterairshow.com/volunteerapp.php and the successpage is here www.hollisterairshow.com/thanksvol.php
The code that creates the session variable in the volunteer application page is shown below
$_SESSION['volunteer_id'] = mysql_insert_id();
The code to display the session variable in the success page is shown below
<?php echo $_SESSION['volunteer_id']; ?>
The code to display the volunteer info is shown below
<h1> Thank You <?php echo $row_rsVolunteerApp['firstname']; ?>!! </h1>
The recordset definition is shown below
The success page test result is shown below, as you can see the volunteer's first name is not displayed immediately after the "Thank you" message but the session variable holding the correct primary key (41) is shown correctly.
Does anyone have an idea of what I'm doing wrong?
Thanks
Tony

Where did you put session_start()? It needs to be before the variable is accessed. It's obviously before the line that displays the value in your page, but is it before the SQL query is generated?
Also, have you checked in phpMyAdmin to see whether volunteernumber 41 has any values in the database?

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I am having the same problem as user "Gabe the animator" in a post sent in 2007.
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PLEASE PLEASE HELP.... I have been at this for day's...
how do I get the record set to filter based on the value of the session variable

Sorry I forgot to mension the error I am getting?
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389024
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Filter recordset with session variable

This has never happened to me before, but for some reason, my
recordset that drives a dynamic table won't filter results based on
a session variable. I know session variables are working because I
have the session variable echo on the page (dragged-n-dropped my
session variable from the Bindings panel to my page), and that
works fine. So why can't I filter my recordset with the same
session variable??? What's going on?
PS: I've attached my result page's code to this
message.

Gabe the Animator wrote:
> <?php require_once('Connections/sales.php'); ?>
> <?php
> if (!function_exists("GetSQLValueString")) {
> function GetSQLValueString($theValue, $theType,
$theDefinedValue = "",
> $theNotDefinedValue = "")
> {
> $theValue = get_magic_quotes_gpc() ?
stripslashes($theValue) : $theValue;
>
> $theValue = function_exists("mysql_real_escape_string")
> mysql_real_escape_string($theValue) :
mysql_escape_string($theValue);
>
> switch ($theType) {
> case "text":
> $theValue = ($theValue != "") ? "'" . $theValue . "'" :
"NULL";
> break;
> case "long":
> case "int":
> $theValue = ($theValue != "") ? intval($theValue) :
"NULL";
> break;
> case "double":
> $theValue = ($theValue != "") ? "'" .
doubleval($theValue) . "'" :
> "NULL";
> break;
> case "date":
> $theValue = ($theValue != "") ? "'" . $theValue . "'" :
"NULL";
> break;
> case "defined":
> $theValue = ($theValue != "") ? $theDefinedValue :
$theNotDefinedValue;
> break;
> }
> return $theValue;
> }
> }
>
> $colname_rsSales = "-1";
> if (isset($_SESSION['state'])) {
> $colname_rsSales = $_SESSION['state'];
> }
> mysql_select_db($database_sales, $sales);
> $query_rsSales = sprintf("SELECT * FROM sales WHERE city
= %s",
> GetSQLValueString($colname_rsSales, "text"));
> $rsSales = mysql_query($query_rsSales, $sales) or
die(mysql_error());
> $row_rsSales = mysql_fetch_assoc($rsSales);
> $totalRows_rsSales = mysql_num_rows($rsSales);
>
> session_start(); ?>
The issue is that PHP doesn't "work" with session values
until the session has started, and that must be done on each page,
and must be done in the code *above* any reference to a session
variable. The code you posted has the session_start() after it
tries to use the session value ito filter the recordset. So move
this last line of code ( session_start(); ) above $colnam_rsSales =
"-1". Better yet, use:
if(!session_id()){
session_start();
To prevent some versions of PHP from generating a
warning/notice if you've called session_start() on the page already
and you call it again.
Danilo Celic
| Extending Knowledge Daily :
http://CommunityMX.com/
| Adobe Community Expert

Unable to filter a recordset using a session variable

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