public function test()
 {
     $suma = 0;
     $rss_array = $this->link_rss();
     foreach ($rss_array as $rss) {
         $raw_rss = file_get_contents($rss["link_rss"]);
         $xml_rss = new SimpleXMLElement($raw_rss);
         foreach ($xml_rss->channel->item as $news) {
             $title = $news->title->__toString();
             $desc = $news->description->__toString();
             $link = $news->link->__toString();
             $vr = $news->pubDate->__toString();
             $vr = strtotime($vr);
             $vreme = date("Y-m-d H:i:s", $vr);
             $id = Vest::ubaci_vest($title, $link, 1, $vreme, $desc, $this->id_novina, 0);
             $vest = new Vest($id);
             $reci = $vest->get_words();
             $suma = $suma + count($reci);
         }
     }
     echo 'Broj reci = ' . $suma;
 }