function bestemmie_are_coming()
{
//$pattern='/[^\x{0009}\x{000a}\x{000d}\x{0020}-\x{D7FF}\x{E000}-\x{FFFD}]+/u';
$pattern = '/[\\x00-\\x08\\x0B\\x0C\\x0E-\\x1F]/u';
$content = file_get_contents($this->url);
//elimino caratteri non utf-8
$content = mb_convert_encoding($content, 'UTF-8', 'UTF-8');
//elimino caratteri non stampabili
$new = preg_replace($pattern, '', $content);
$this->to_clean = time() . ".tmp";
$pagina = fopen($this->to_clean, "w");
fwrite($pagina, $new);
fclose($pagina);
$base = $_SERVER['SERVER_NAME'];
$last = $_SERVER['PHP_SELF'];
$last = parent::getInitialURL($last);
parent::loadPage("http://" . $base . $last . $this->to_clean);
}