<?
 
$content = utf8_encode(file_get_contents('remixon.xml'));
$xml     = simplexml_load_string($content);
foreach ($xml->urun as $urun)
{
    $secenekler = $urun->xpath('UrunSecenek');
	foreach($secenekler as $secenek)
	{	
		foreach($secenek->Secenek as $val)
		{
			//var_dump($val);
			echo $val->StokKodu;
		}
	}	
}