How To Deal With High Gear Media API Using PHP & XPath

HGM API with xPath usage example

<?php
/**
 * @author Ido Green
 * @since 04/10/2010
 * @abstract Simple example how to fetch High Gear Media Full API using xPath
 * @see http://greenido.wordpress.com/2010/04/15/how-to-deal-with-high-gear-media-api-using-xpath/
 * @copyright HighGearMedia INC. 2010
 */error_reporting(E_ALL); // Always good to have it in development mode
$feed = new DOMDocument();
$feed->load('http://www.thecarconnection.com/api?uid=YourApiUserKey&cat=bottom-line');
if (isset($feed->documentElement)) {
    $xpath = new DOMXPath($feed);
    // Lets register TheCarConnection namespace
    $xpath->registerNamespace('tcc', 'http://www.thecarconnection.com/rss');
    // Now we looping on all the items and for each one we are extracting some data
    foreach ($xpath->evaluate('//item') as $entryNode) {
        // Simple way to get the title,desc per item
        echo "Title: " . $xpath->evaluate('string(title)', $entryNode), "\n";
        echo "Description " . $xpath->evaluate('string(description)', $entryNode), "\n";
        // and some more interesting capabilities of xPath - we fetching the spec that is under tcc namespace for car details
        echo "Make: " . $xpath->evaluate('string(tcc:review[1]/tcc:cardetails[1]/tcc:make[1])', $entryNode), "\n";
        echo "Model: " . $xpath->evaluate('string(tcc:review[1]/tcc:cardetails[1]/tcc:make[1])', $entryNode), "\n";
        echo "Rating: " . $xpath->evaluate('string(tcc:review[1]/tcc:cardetails[1]/tcc:rating[1])', $entryNode), " Out of 10\n";
        echo "============\n";
    }
} else {
    echo 'Error: Could not fetch the feed';
}