DOMTreeBuilder example

    public function parse($input, array $options = array())
    {
        $this->errors = array();
        $options = array_merge($this->defaultOptions, $options);
        $events = new DOMTreeBuilder(false, $options);
        $scanner = new Scanner($input, !empty($options['encoding']) ? $options['encoding'] : 'UTF-8');
        $parser = new Tokenizer($scanner, $events, !empty($options['xmlNamespaces']) ? Tokenizer::CONFORMANT_XML : Tokenizer::CONFORMANT_HTML);

        $parser->parse();
        $this->errors = $events->getErrors();

        return $events->document();
    }

    /** * Parse an input stream where the stream is a fragment. * * Lower-level loading function. This requires an input stream instead * of a string, file, or resource. * * @param string $input The input data to parse in the form of a string. * @param array $options An array of options. * * @return \DOMDocumentFragment */