ciao a tutti 
vorrei aggiungere un chechbox a questa funzione che mi consenta di selezionare tutti / nessuno tramite un pulsante.
Codice PHP:
else if($action=="validatelist")
{
addonline(getuid_sid($sid),"***","");
echo "<head>";
echo "<title>***</title>";
echo "<link rel=\"stylesheet\" type=\"text/css\" href=\"../themes/$theme[0]\">";
echo "</head>";
echo "<body>";
//////ALL LISTS SCRIPT <<
if($page=="" || $page<=0)$page=1;
$noi = mysql_fetch_array(mysql_query("SELECT COUNT(*) FROM users WHERE validated='0'"));
$num_items = $noi[0]; //changable
$items_per_page= 10;
$num_pages = ceil($num_items/$items_per_page);
if(($page>$num_pages)&&$page!=1)$page= $num_pages;
$limit_start = ($page-1)*$items_per_page;
$sql = "SELECT id, name FROM users WHERE validated='0' ORDER BY name LIMIT $limit_start, $items_per_page";
echo "
";
$items = mysql_query($sql);
if(mysql_num_rows($items)>0)
{
while ($item = mysql_fetch_array($items))
{
$nopl = mysql_fetch_array(mysql_query("SELECT sex, birthday, location FROM users WHERE id='".$item[0]."'"));
$uage = getage($nopl[1]);
if($nopl[0]=='M')
{$usex = "M";}else
if($nopl[0]=='F'){$usex = "F";}
else{$usex = "Non dichiarato!";}
$nopl[2] = htmlspecialchars($nopl[2]);
$lnk = "<a href=\"index.php?action=viewuser&who=$item[0]&sid=$sid\">$item[1]($uage/$usex/$nopl[2])</a>";
echo "$lnk
";
}
}
echo "</p>";
echo "<p align=\"center\">";
if($page>1)
{
$ppage = $page-1;
echo "<a href=\"pagina.php?action=$action&page=$ppage&sid=$sid&who=$who\">«Precedente</a> ";
}
if($page<$num_pages)
{
$npage = $page+1;
echo "<a href=\"pagina.php?action=$action&page=$npage&sid=$sid&who=$who\">Successiva»</a>";
}
echo "
$page/$num_pages
";
if($num_pages>2)
{
echo $rets;
$rets = "<form action=\"headadmincp.php\" method=\"get\">";
$rets .= "<input name=\"page\" style=\"-wap-input-format: '*N'\" size=\"2\"/>";
$rets .= "<input type=\"hidden\" name=\"action\" value=\"$action\"/>";
$rets .= "<input type=\"hidden\" name=\"sid\" value=\"$sid\"/>";
$rets .= "<input type=\"submit\" value=\"vai\"/>";
$rets .= "</form>";
echo $rets;
}
echo "</p>";
echo "</body>";
}
grazie a chi mi aiuterà