PHP - Problemas al parsear

$Url        = urlencode($_GET['Dir']);

require 'Libs/simple_html_dom/simple_html_dom.php';

$Result = new simple_html_dom();

$Result->file_get_html($Url);

Fatal error: Call to undefined method simple_html_dom::file_get_html() in Z:\Users\MiPc....\Desktop\QONSOLA\Php\Parsear.php on line 20

require 'Libs/simple_html_dom/simple_html_dom.php';

$Result = new simple_html_dom();

require __DIR__.'/Libs/simple_html_dom/simple_html_dom.php';

// -----------------------------------------------------------------------------

// get html dom from file

// $maxlen is defined in the code as PHP_STREAM_COPY_ALL which is defined as -1.

function file_get_html($url, $use_include_path = false, $context=null, $offset = -1, $maxLen=-1, $lowercase = true, $forceTagsClosed=true, $target_charset = DEFAULT_TARGET_CHARSET, $stripRN=true, $defaultBRText=DEFAULT_BR_TEXT, $defaultSpanText=DEFAULT_SPAN_TEXT)

{

    // We DO force the tags to be terminated.

    $dom = new simple_html_dom(null, $lowercase, $forceTagsClosed, $target_charset, $stripRN, $defaultBRText, $defaultSpanText);

    // For sourceforge users: uncomment the next line and comment the retreive_url_contents line 2 lines down if it is not already done.

    $contents = file_get_contents($url, $use_include_path, $context, $offset);

    // Paperg - use our own mechanism for getting the contents as we want to control the timeout.

    //$contents = retrieve_url_contents($url);

    if (empty($contents) || strlen($contents) > MAX_FILE_SIZE)

    {

        return false;

    }

    // The second parameter can force the selectors to all be lowercase.

    $dom->load($contents, $lowercase, $stripRN);

    return $dom;

}