<?php
//query di ricerca
if($idolomiti!= "1")



echo "<font face=\"arial\" size=\"2\" color=\"red\">$dolo <font size=\"1\">$regio</font></font>";
$query1 = "select a.ferrata,a.id_difficolta, b.dolomiti, a.id_dolomiti,c.id_regioni,c.regione,d.difficolta from vieferrate as a, dolomiti as b, regioni as c, difficolta as d where a.id_dolomiti='$idolomiti' and b.id_dolomiti=a.id_dolomiti and a.id_regioni=c.id_regioni and a.id_difficolta = d.id_difficolta ";


if($idiffi!= "0")
$query1 .= " and a.id_difficolta = '$idiffi'";
$query1 .= ";";


echo "

<img src=\"image\quadro.bmp\"><font face=\"arial\" size=\"1\"> $nome</font>";
echo "<font face=\"arial\" size=\"1\">$cima</font>";
echo "<font face=\"arial\" size=\"1\">$diff</font>";

mysql_query($query1) or die (mysql_error());
while ($row = mysql_fetch_array($query1))
{
$nome= $row["ferrata"];
$nomeregione= $row ["regione"];
$dolomiti= $row["dolomiti"];
$id_reg = $row ["id_regioni"];
$diff = $row["difficolta"];
}

echo "

<img src=\"image\quadro.bmp\"><font face=\"arial\" size=\"1\"> $nome</font>";
echo "<font face=\"arial\" size=\"1\">$cima</font>";
echo "<font face=\"arial\" size=\"1\">$diff</font>";



?>


ERRORE :

Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in c:\programmi\apache group\apache\htdocs\aggiornamentosito\ricercaviefe rrate.php on line 325