Trulia API...

Can someone please point me in the right direction of how to pull basic neighborhood listings from this: http://developer.trulia.com/docs/LocationInfo/getNeighborhoodsInCity

Is there a way to manipulate this script correctly:

<?php

error_reporting(E_ALL);

// output=php means that the request will return serialized PHP
$request =  'http://api.trulia.com/webservices.php?library=LocationInfo&function=
getNeighborhoodsInCity&city=Los Angeles&state=CA&apikey=my_key&output=php';

$response = file_get_contents($request);

if ($response === false) {
die('Request failed');
}

$phpobj = unserialize($response);

$content = '';
foreach ($phpobj['value']['items'] as $business)
$content .= "<u>{$business['title']}</u>:{$business['y:location']['street']} {$business['y:location']['city']}, {$business['y:location']['state']} -- {$business['Phone']}<br />";
echo $content;

?>

PHP: