$counter = 0;

foreach ( $urls as $url ) {
    $rss = fetch_rss($url);
    if (!$rss) continue;

    foreach (array_keys($rss) as $key) {
    	$rss[$key]["feedtitle"] = $title[$counter];
    }
    $counter ++;
    $items = array_merge($items, $rss->items);
}