体育得分XML：如果离开，回声“at”; 如果回家，回声“vs”

I'm using PHP to output our XML sports scores, in this example men's basketball. The page currently displays our opponents' names followed by the score and date. There are also XML attributes for home team and away team (for example, Oregon State at Stanford is: hc="stan" vc="orst").

My question is, instead of displaying only the opponents' name, i.e. "Oregon State", is it possible to display "vs Oregon State" if Oregon State is the away team OR display "at Oregon State" if Oregon State is the home team.

Here is my page, XML and code:

<?php
$xml = simplexml_load_file('http://www.gostanford.com/data/xml/events/m-baskbl/2010/index.xml');

// Reverse chronological order
$xmlArray = array();
foreach ($xml as $event_date) $xmlArray[] = $event_date;
$xmlArray = array_reverse($xmlArray);

foreach ($xmlArray as $event_date)
{
    // Only output if complete
    if(!empty($event_date->event['vn']) && !empty($event_date->event['hn']) && !empty($event_date->event['vs']) && !empty($event_date->event['hs']))
    {
    // Only show opponents' name
    $name = ($event_date->event['vc'] == 'stan') ? $event_date->event['hn'] : $event_date->event['vn'];
    echo '<li>';
        echo '<h3>', $name, '</h3>';
        echo '<p><strong>', $event_date->event['vn'], ' ', $event_date->event['vs'], ' - ', $event_date->event['hn'], ' ', $event_date->event['hs'], '</strong></p>';
        echo '<p>', date('F j, Y', strtotime($event_date['date'])), '</p>';
    echo '</li>';
    }
}   
?>

$preposition = ($event_date->event['vc'] == 'stan') ? 'vs' : 'at';

and then use $preposition before the team name.

Something like this maybe?

if($name == $event_date->event['vs']) {
   // vs
} else {
   // at
}

or

if(!empty($event_date->event['vn']) && !empty($event_date->event['hn']) && !empty($event_date->event['vs']) && !empty($event_date->event['hs']))
{
// Only show opponents' name
$name = ($event_date->event['vc'] == 'stan') ? $event_date->event['hn'] : $event_date->event['vn'];

$playing_location = 'at'; // default
if($name == $event_date->event['vs']) {
   $playing_location = 'vs';
} 

echo '<li>';
    echo '<h3>', $name, '</h3>';
    echo '<p><strong>', $event_date->event['vn'], ' ', $event_date->event['vs'], $playing_location, $event_date->event['hn'], ' ', $event_date->event['hs'], '</strong></p>';
    echo '<p>', date('F j, Y', strtotime($event_date['date'])), '</p>';
echo '</li>';
}