Filter recordset with session variable

Question

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.

Answer 1

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
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