Re: An annoying session problem

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On Mon, June 19, 2006 10:26 am, Alex Major wrote:
> Hi there.
> I'm working my way through a new script, but I've stumbled into a
> problem.
> Some data that I've set into a session, won't be processed by part of
> my php
> code, but then later on in the page I can get the session value to
> output.
>
> Also, just so that its clear, the mysql code is correct (I can put it
> into
> phpmyadmin and get results from it.
>
> Heres the code (this code is 'included' in another page, where the
> session
> originates and session_start(); is set.)
>
> <?php
> // Lets see how much the person has at the moment.
>     $current_resource_query = "SELECT food, wood, stone, gold,
> population
> FROM game_resources WHERE user_id = '".$_SESSION['user_id']."'";

First, figure out if the query you THINK you are sending is what you
are sending:
echo $current_resource_query;

Yes, I know you said you did this, but keep it in here for debugging
for  awhile.

Most crucial, is to make SURE the 'user_id' really is what you expect,
and not just glance at the 32-character gobbledy-gook and say "Yeah,
that's right."

>     $current_resource_result = mysql_query($current_resource_query);

Next, you HAVE to do error-checking with mysql_error();

>     $current_resource = mysql_fetch_assoc($current_resource_result);
>
> ?>
> <table width="100%"  cellspacing="1" cellpadding="1">
>   <tr>
>     <td colspan="5"><?php $userid ?> <?php $_SESSION['username']
> ?></td>
>   </tr>
>   <tr>
>     <td width="20%">Food: <?php $current_resource['food'] ?></td>
>     <td width="20%">Wood: <?php $current_resource['wood'] ?></td>
>     <td width="20%">Stone: <?php $current_resource['stone'] ?></td>
>     <td width="20%">Gold: <?php $current_resource['gold'] ?></td>
>     <td width="20%">Session id is: <?php echo
> ''.$_SESSION['user_id'].''
> ?></td>
>   </tr>
> </table>
>
> The error may not necessarily be to do with the session, but non of
> the
> $current_resources are showing.
>
> Thanks for any help guys/gals.
>
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>


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