FluentDOM\Query::xml PHP Method

    public function xml($xml = NULL)
    {
        return $this->content($xml, function ($node) {
            return $this->build()->getInnerXml($node);
        }, function ($node) {
            return $this->build()->getFragment($node, 'text/xml', TRUE);
        }, function ($node, $fragment) {
            $this->modify($node)->replaceChildren($fragment);
        });
    }