xml sorteren

<?php
foreach( $xml -> parent as $parent ) {
    $scores[] = $parent -> score;
}

sort( $scores );

foreach( $scores as $score ) {
    echo $score;
}
?>

<?php
foreach( $xml -> parent as $parent ) {
    $scores[] = $parent -> score;
}
 
sort( $scores );
 
foreach( $scores as $score ) {
    echo $score;
}
?>

<php
$xml = <<<<XML
<?xml version='1.0' standalone='yes'?>
<books>
    
    <book>
        <titel>Roodkapje</titel>
        <score>5</score>
    </book>

    <book>
        <titel>Sneeuwwitje</titel>
        <score>7</score>
    </book>

</books>
XML;
?>

<php
$xml = <<<<XML
<?xml version='1.0' standalone='yes'?>
<books>
 
    <book>
        <titel>Roodkapje</titel>
        <score>5</score>
    </book>
 
    <book>
        <titel>Sneeuwwitje</titel>
        <score>7</score>
    </book>
 
</books>
XML;
?>