Search engines crawlers
$proxy = []; //['host' => '*.*.*.*', 'port' => '', 'login' => '', 'password' => '']
$params = ['query' => 'test search', 'page' => $page, 'proxy' => $proxy];
$crawler = new WebCrawler(['strategy' => new GoogleSearch()]);
print_r($crawler->crawl($params));
$params = ['url' => 'http://your-site.com', 'proxy' => []];
$crawler = new WebCrawler(['strategy' => new SiteSearch()]);
print_r($crawler->crawl($params));