$video = implode("", $video);
preg_match_all('/\<title\>(.*?)\<\/title\>(.*?)\<description\>(.*?)\<\/description\>(.*?)\<thumbnail_url\>(.*?)\<\/thumbnail_url\>/s', $video, $matches);
$title = $matches[1][0];
$description = $matches[3][0];
$baslik = str_replace("ı","ı",$description);
kalın...