vb.org Archive - loop problem, getting MySQL error

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- - loop problem, getting MySQL error (https://vborg.vbsupport.ru/showthread.php?t=111809)

Red Blaze

03-31-2006 01:29 PM

loop problem, getting MySQL error

Quote:

Warning: mysql_numrows(): supplied argument is not a valid MySQL result resource in /home/prophot/public_html/order/cart.php on line 150

That's the error I get.
This is the block of code in that area:

PHP Code:


		
			
              <?php

              $itemname = $row_callitems['itemname'];

$addedsize = "SELECT * items WHERE userid = $userid AND itemname = $itemname AND original = '0'";

$result = mysql_query($addedsize);

$num = mysql_num_rows($result);

mysql_close();

$i=0;

while ($i < $num) {

$size=mysql_result($result,$i,"size");

$paper=mysql_result($result,$i,"paper");

$quantity=mysql_result($result,$i,"quantity");

              ?>

Line 150 is "$num = mysql_num_rows($result);" so I assume something is wrong with line 149? Which is the $addedsize variable. I updated the txt file that has the entire code. Help would be greatly appreciated, thank you.

Just so you'd know, this loop is inside a repeat region generated by Dreamweaver. Could that be a cause of the problem?

~RB

Xenon

03-31-2006 01:59 PM

remove the mysql_close(); if you have that in a loop, because that would close the connection and therefore the second run of the loop cannot give you a result

Red Blaze

03-31-2006 02:17 PM

That wasn't inside the loop, but I removed it anyway. I got this loop coding from a tutorial, so I didn't know it wasn't needed.

Also, since I removed it, it still didn't work. =/

Xenon

03-31-2006 02:19 PM

and it's sure that the connection exists?

Red Blaze

03-31-2006 02:32 PM

*sigh* I hate it when this happens.
I found out what it all was.

I forgot to put "FROM" between "* items".

Xenon

03-31-2006 04:20 PM

oops ;)

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