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function clean_url ($url) {
if ($url == '') return;
$url = str_replace("http://", "", strtolower($url));
$url = str_replace("https://", "", $url );
if (substr($url, 0, 4) == 'www.') $url = substr($url, 4);
$url = explode('/', $url);
$url = reset($url);
$url = explode(':', $url);
$url = reset($url);
return $url;
}
if (clean_url($_SERVER['HTTP_REFERER']) != clean_url($_SERVER['HTTP_HOST'])) die("Hacking attempt!");
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Ага, как и в случае прямых заходов...
Подпись: Черный Властелин