[php] ciclo while

[sharko]

mi da errore Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /home/raptxt/public_html/commenti.php on line 26 (la riga del while)

e mi mostra solo l'ultimo elemento della tabella del db e non tutti...

<?php session_start();

// Get the default templates, Includes and Database connections
include("header.php");

$tpl->assignInclude("content", "themes/$themes/tpl/commenti.tpl");

// Prepare the template
$tpl->prepare();

// Get the menu items and links
include("menu.php");

// Assign needed values
$tpl->assignGlobal("theme", $themes);
$tpl->assignGlobal("imgfolder", "http://raptesti.interfree.it");
$tpl->assign("version", $version);
$tpl->assign("type", $_GET['art']);
$a=1;

// The MySQL command to run
$select = "SELECT * FROM commenti WHERE alb=$alb ORDER BY data, uid ASC";

// Run the query
$data = mysql_db_query($sql['data'], $select) or die("commenti Failed!");
while ($row = mysql_fetch_array($data))
   {
      // Get all the fields
      $uid = $row['uid'];
      $nome = $row['nome'];
      $data = $row['data'];
      $commento = $row['commento'];
      echo"$nome $commento";
      $nome=stripslashes($nome);
      $commento=stripslashes($commento);
      $commento=nl2br($commento);
      $rap="";
      
if ($nome =="" || $commento=""){
$nome="RapTxt"; $commento="nessun commento inserito. Inserisci tu il primo!";}


      // Set the values to template variables
      $tpl->newBlock("commenti");
      $tpl->assign("uid", $uid);
      $tpl->assign("nome", $nome);
      $tpl->assign("commento", $commento);
      $tpl->assign("data", $data);
      $tpl->assign("num", $a);
      $a++;
    }

// Print the result
$tpl->printToScreen();

?>