<style>
br {margin-bottom:-10px;}
</style>

<form action="cerca2.php" method="post">
<b>Nome</b>&nbsp;<input type="text" name="Nome">&nbsp;&nbsp;
<b>Numero&nbsp;</b><input type="text" name="Numero">&nbsp;&nbsp;
<b>city&nbsp;</b><input type="text" name="city">&nbsp;&nbsp;
<input type="Submit">
</form>

<style>
tr:nth-of-type(odd) { background-color: AZURE; }
tr:nth-of-type(even) { background-color: CYAN; }
</style>
<style>
tr:hover{background-color:DEEPSKYBLUE;}
</style>

<?php

echo "<table border='1' style='border-collapse: collapse;border-color: silver;'>";
echo "<tr style='font-weight: bold;'>";
echo "<th width='auto' bgcolor=”#7FFFD4″>&nbsp;<i>ID<i/></th>";
echo "<th width='auto' >&nbsp;<i>Nome<i/></th>";
echo "<th width='auto' ></th>";
echo "<th ></th>";
echo "</tr>";

define('DB_NAME', 'forms1');
define('DB_USER', 'root');
define('DB_PASSWORD', '');
define('DB_HOST', 'localhost');

$link = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
if (!$link) {
    die('Could not connect: ' . mysql_error());
}

$db_selected = mysql_select_db(DB_NAME, $link);

if (!$db_selected) {
    die('Can\'t use ' . DB_NAME . ': ' . mysql_error());
}

$Nome = str_replace(' ', '%', $_POST['Nome']);
$Numero = str_replace(' ', '%', $_POST['Numero']);
$city = str_replace(' ', '%', $_POST['city']);

$arNome = str_split($Nome);
$arNumero = str_split($Numero);
$arcity = str_split($city);

$Nome='';
foreach ($arNome as $value)
{
   if ($value=='%') continue;
   $Nome.=$value.'%';

}

$Numero='';
foreach ($arNumero as $value)
{
   if ($value=='%') continue;
   $Numero.=$value.'%';

}

$city='';
foreach ($arcity as $value)
{
   if ($value=='%') continue;
   $city.=$value.'%';

}

$sql = mysql_query("SELECT * FROM demo WHERE Autore LIKE '%$Nome%' AND Titolo LIKE '%$Numero%' AND cit LIKE '%$city%' ORDER BY Autore") or die(mysql_error());


$i = 0; while($row=mysql_fetch_array($sql)){
        $i++;
        echo "<tr>";
        echo "<td width='auto' bgcolor=”#FF0000 &#8243;>" . "&nbsp;". "<b>"  . $i . "&nbsp;". "<b/>". "</td>";
        echo "<td width='auto'>" . "&nbsp;" . $row[1] . "&nbsp;" . "</td>";
        echo "<td width='auto'>". "</td>";
        echo "<td width='auto'>" . "&nbsp;". "<i>" . $row[2] . "<i/>". "&nbsp;" . "</td>";
        echo "<td width='auto'>" . "&nbsp;". "<i>" . $row[3] . "<i/>". "&nbsp;" . "</td>";
        echo "</tr>";
}
mysql_close();
?>
</table>

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript" src="http://tablesorter.com/__jquery.tablesorter.min.js"></script>
<script type="text/javascript">
    $(document).ready(function(){ $("table").tablesorter(); });
</script>