Problem with absolutely simple question in database table

id	smallint(4) Auto Increment	 
name	varchar(64)	 
name_alt	varchar(128)	 
parent_id	smallint(4) NULL	 
view	smallint(2) [1]

SELECT id, name
FROM `category`
ORDER BY name ASC
LIMIT 8

$dsn = 'mysql:host=mysql.server.xyz;dbname=database_name;port=3306;charset=utf-8';
$xpdo = new xPDO($dsn,'user','password');

// echo $o=($xpdo->connect()) ? 'Connected' : 'Not Connected';

$output = '';

$dotaz = $xpdo->newQuery('category');

$dotaz->where(array(
   'id' => $id,
   'name' => $name
));

$dotaz->sortby('name','ASC');
$dotaz->limit(8);

$vysledek = $xpdo->getCollection('category',$dotaz);

foreach($vysledek as $vysl) {
    $output .= 'ID' . $box->get('id').'Name ' . $box->get('name');
}

return $output;

$dotaz->select($xpdo->getSelectColumns('category','category','',array('id','name')));

<?php
$output = array();
$pdoStmt = $xpdo->prepare("SELECT * FROM category WHERE `id` = ? AND `name` = ? ORDER BY `name` ASC LIMIT 8");
if ($pdoStmt->execute(array($id, $name))) {
    while ($row = $pdoStmt->fetch(PDO::FETCH_OBJ)) {
        $output[] = "ID {$row->id} - Name {$row->name}";
    }
}
return implode("\n", $output);

SELECT id, name FROM `category` ORDER BY name ASC LIMIT 8