query inside a pdo while loop - php

Question

Hi all I think I designed my pdo mysql class rather badly, as I'm not able to put a query inside a while loop of another query because the new query inside the loop wipes out the old one, is there an easy way to fix this?
I'm too used to the really old style of php/mysql where you make a query, then assign that query inside the fetch($query) which you don't do with PDO. This has me in a muddle and it's been bugging me for too long.
My Code cut to the relevant parts
class mysql
{
// the query counter
public $counter = 0;
// the database connection
public $database;
// statement handler
public $STH;
// store all the queries for debugging
public $queries = '';
public function __construct($database_host, $database_username, $database_password, $database_db)
{
$options = array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8',
);
$this->database = new PDO("mysql:host=$database_host;dbname=$database_db", $database_username, $database_password, $options);
$this->database->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
}
// A plain query
public function pquery($sql, $page = NULL)
{
global $core;
try
{
$this->STH = $this->database->prepare($sql);
$this->counter++;
$this->queries .= "<br />$sql";
return $this->STH->execute();
}
catch (Exception $e)
{
$core->message("Something went wrong. The admin will be notified and punished muhahaha for I am an evil overlord...I'm sure I will be fixed soon.", NULL, 1);
$this->pdo_error($e->getMessage(), $page, $sql);
}
}
// the main sql query function
public function sqlquery($sql, $objects = array(), $page = NULL, $referrer = NULL)
{
global $core;
try
{
$this->STH = $this->database->prepare($sql);
foreach($objects as $k=>$p)
{
// +1 is needed as arrays start at 0 where as ? placeholders start at 1 in PDO
if(is_numeric($p))
{
// we need to do this or else decimals always seem to end up 'x.00', pdo has no decimal check, odd
if ($this->contains_decimal($p) == true)
{
$this->STH->bindValue($k+1, $p, PDO::PARAM_STR);
}
else
{
$this->STH->bindValue($k+1, (int)$p, PDO::PARAM_INT);
}
}
else
{
$this->STH->bindValue($k+1, $p, PDO::PARAM_STR);
}
}
$this->counter++;
$this->queries .= "<br />$sql";
return $this->STH->execute();
}
catch (Exception $e)
{
$core->message("Something went wrong. The admin will be notified and punished muhahaha for I am an evil overlord...I'm sure I will be fixed soon.", NULL, 1);
$this->pdo_error($e->getMessage(), $page, $sql, $referrer);
}
}
public function fetch()
{
$this->STH->setFetchMode(PDO::FETCH_ASSOC);
return $this->STH->fetch();
}