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<?php
$pushed = array();
while (blablabla)  {
if ($n->tnid == 0) {
            array_push($data,node_load(array('nid' => $n->nid)));
        } else {
            if (!in_array($n->tnid,$pushed)) {
                array_push($data,node_load(array('tnid' => $n->tnid, 'language' => $lang)));
            }
            array_push($pushed,$n->tnid);
        }
}
?>