//phrase image and youtube links
    foreach ($template->query('//article/div/p[a and count(*)=1 and not(normalize-space(text()))]') as $node) {
        $link = trim($node->nodeValue);
        $replace = false;

        if (
            preg_match('~(?:
                https?://(?:www\.)?youtu(?:be\.com/(?:embed/|watch\?(?:.+&)?v=)|\.be/)([a-z0-9_\-]+) # Parsing YouTube URLs.
                |
                (.+\.(?:png|jpe?g|gif)$) # Parsing image URLs.
            )~ixA', $link, $matches)
        ) {
            if (strlen($matches[1])) { // We found a YouTube video.
                $replace = '<iframe width="480" height="360" src="http://www.youtube-nocookie.com/embed/' . $matches[1] . '?autoplay=0&amp;rel=0" frameborder="0" allowfullscreen="allowfullscreen">' . safeHTML($link) . '</iframe>';
            } else if (strlen($matches[2])) { // We found an image link.
                $replace = '<a target="_blank" href="' . safeHTML($link) . '"><img style="max-width: 100%;" src="' . $matches[2] . '" alt="Click to view full size image." /></a>';
            }
        }

        if ($replace) {
            $frag = $node->ownerDocument->createDocumentFragment();
            if (!@$frag->appendXML($replace) || !@$node->parentNode->replaceChild($frag, $node)) {
                throw new Exception("Invalid HTML");
            }
        }
    }