simple_html_dom::__destruct PHP Method

    function __destruct()
    {
        $this->clear();
    }

function scrapeTEDRSS($url, $sector)
{
    print $url . " " . $sector . "\n";
    // $xml = scraperWiki::scrape($url);
    $curl = curl_init($url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt($curl, CURLOPT_MAXREDIRS, 10);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($curl, CURLOPT_TIMEOUT, 20);
    // 10 second before aborting
    // try CURLOPT_CONNECTTIMEOUT (in seconds)
    // try CURLOPT_LOW_SPEED_LIMIT (to define what slow is, with):
    // curl_setopt($curl, CURLOPT_LOW_SPEED_TIME, 10); (10 second at low speed before aborting
    $xml = curl_exec($curl);
    print curl_error($curl) . "\n";
    $dom = new simple_html_dom();
    $dom->load($xml);
    $items = $dom->find("item");
    foreach ($items as $item) {
        $guid = $item->find("guid");
        $noticeURL = str_replace("TEXT", "DATA", $guid[0]->plaintext);
        print $noticeURL . " " . $sector . " " . memory_get_usage() / 1000000 . "MB";
        echo "\n";
        // $record = scrapeTEDDataPage ($noticeURL, $sector);
        $record = array('time' => microtime(true), 'sector' => $sector, 'url' => $noticeURL);
        scraperwiki::save(array('sector', 'url'), $record);
        sleep(1);
    }
    $dom->__destruct();
    unset($items);
    unset($dom);
    unset($xml);
    print memory_get_usage() / 1024 / 1024 . "MB\n";
}