sqlSTATE[HY000]: General error: 25 bind or column index out of range

这是我的代码：

// db.PHP
  function dbh($sql,$db = "",$nsx = "") {
    $db = ($db) ? $db : "mydb";
    $db = $db.".sqlite";
    try {
      $dbh = new PDO("sqlite:$db");
      $dbh->setAttribute( PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION );
      // id,title,desc,cost,album,version,added
      $dbh->exec("CREATE TABLE IF NOT EXISTS `products` (
                    `id` INTEGER PRIMARY KEY,`title` TEXT,`desc` TEXT,`cost` TEXT,`album` TEXT,`version`TEXT,`added` DATETIME
                 )");
      //$mem = new PDO('sqlite::memory');
      //$mem->setAttribute( PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION );

      $res = $dbh->prepare($sql);
      //var_dump($nsx);
      $res->execute($nsx);

      if (!is_array($nsx)) {
        return $res->fetchAll();
      }
    }
    catch(PDOException $e) {
      return $e->getMessage();
    }
  }

// products.PHP
$sql = "INSERT INTO `products` (title,added) VALUES (:title,:desc,:album,:version,:cost,:date)";
$nsx = array(
         ':title'   => $i['addon']['title'][$k],':desc'    => $i['addon']['desc'][$k],':cost'    => $i['addon']['cost'][$k],':album'   => $album,':version' => '1.0',':added'   => $date,);
$dbh = dbh($sql,"",$nsx);