[PHP] pobierz, plaintext 
$xml = simplexml_load_file('../dane/filmy.xml');
$kategoria=array('Horror','Trailer','Komedia');
foreach($xml->film as $film){
    $dane = (array)$film;
    echo '<pre>';
    print_r($dane);
    echo '</pre>';
[PHP] pobierz, plaintext 

Array
(
    [tytul] => Dracula
    [aktorzy] => SimpleXMLElement Object
        (
            [aktor] =>
Array
                (
                    [0] => SimpleXMLElement Object
                        (
                            [imie] => Winona
                            [nazwisko] => Ryder
                        )

                    [1] => SimpleXMLElement Object
                        (
                            [imie] => Anthony
                            [nazwisko] => Hopkins
                        )

                    [2] => SimpleXMLElement Object
                        (
                            [imie] => Keanu
                            [nazwisko] => Reeves
                        )

                    [3] => SimpleXMLElement Object
                        (
                            [imie] => Gary
                            [nazwisko] => Oldman
                        )

                )

        )

)

Array
.......

[tytul] => Dracula
    [aktorzy] => SimpleXMLElement Object
        ........
[kategoria]=> Horror

[PHP] pobierz, plaintext 
foreach($xml->film as $film){
    $dane = (array)$film;
    $dane .=array(
        'kategoria'=> 'Horror'
        ); 
    echo '<pre>';
    print_r($dane);
    echo '</pre>';
[PHP] pobierz, plaintext