MOTOR SCANNER DORK Filtro DOMDocument

<?php

error_reporting(0);

function request($url_) {
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url_);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_USERAGENT, 'blog.inurl.com.br');
    curl_setopt($curl, CURLOPT_REFERER, "http://blog.inurl.com.br/" . intval(rand() % 255) . intval(rand() % 255) . intval(rand() % 255) . intval(rand() % 255));
    return curl_exec($curl);
}

$xmlstr = request("http://www.bing.com/search?q=index.php%3Foption%3D");
$source = <<<HTML
$xmlstr
HTML;

function filtroUrl($html) {
    preg_match_all("#\b((((ht|f)tps?://)|(www|ftp)\.)[a-zA-Z0-9\.\#\@\:%_/\?\=\~\-]+)#i", $html, $match);
    return array_unique($match[0]);
}

$doc = new DOMDocument();
$doc->loadHTML($xmlstr);
$links = array();

$arr = $doc->getElementsByTagName("a");
foreach ($arr as $item) {
//  if (preg_match('#\b((((ht|f)tps?://)|(www|ftp)\.)[a-zA-Z0-9\.\#\@\:%_/\?\=\~\-]+)#i', $item->getAttribute("href"))) {
    $url = filtroUrl($item->getAttribute("href"));
    echo (!is_null($url[0]))? "<br>{$url[0]}</br>" : null;
}