public function convertyoutube($link) {

            if (strpos($link, 'youtube.com/watch?v=') == true) {

                $url = $link;
                parse_str(parse_url($url, PHP_URL_QUERY), $youtube_array);
                preg_match("/[^\s]*/", $youtube_array['v'], $matches);
                $videoid = $matches[0];

                $embed = "<iframe width='420' height='315' src='https://www.youtube.com/embed/".$videoid."'></iframe>"; // what it should create with the extracted code

                return $embed;

            }


        }