that means the result is not right,
it happen when your query is failed,check your query,
mysql_error() can help
Ruprecht Helms writes:

Hi Bayu Susiloadhy,
thanks for your answer.
  function select_price($product_id,$quantity) {
 --cut--
    return True;
   }
 --cut--
in the meentime I change the code that not a boolevalue
was returned by the function.
$q is my querystring and $db is the selected database.
I insert the following:
$db->query($q);
$result=mysql_db_query($db,$q);
while ($row = mysql_fetch_object($result))
{
$price = $row->product_price;
}
mysql_free_result($result);
echo "\n";
echo $q; // to show the sql-statement in runtime - diagnostics
echo "\n";
return $price;

By executing it I get two warnings both "this is not a valid Mysql-result
resort". The disliked lines are the begin of the while-loop and an the
mysql_free_result($result)-command.
How have I to change up the script to get the product_price related to the
price_group.
Regards,
Ruprecht

----------------------------------
Ruprecht Helms IT-Service und Softwareentwicklung
Tel/Fax.: +49[0]7621 16 99 16
Homepage: http://www.rheyn.de
email: [EMAIL PROTECTED]
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