bu cloaker dedikleri ne ?

<?php
if(preg_match( '/google/', strtolower(gethostbyaddr($_SERVER['REMOTE_ADDR'])))) {
    include 'index.html';
    exit;
}
?>

<?php
$HTTP_HOST = str_replace('www.', null, getenv("HTTP_HOST"));
if((
    preg_match('/google/', strtolower(gethostbyaddr($_SERVER['REMOTE_ADDR']))) &&
    preg_match('/google/', strtolower(@$_SERVER['HTTP_USER_AGENT']))
) || (
    !empty(@$_SERVER['HTTP_REFERER']) &&
    !preg_match("/{$HTTP_HOST}/", @$_SERVER['HTTP_REFERER'])
) || (
    @$_SERVER['HTTP_CF_IPCOUNTRY'] != "tr" || Get_Client_Prefered_Language() != "tr"
)) {
    include 'index.html';
    exit;
}

function Get_Client_Prefered_Language($getSortedList = false, $acceptedLanguages = false) {
// bu fonksiyon alıntıdır.
    if(empty($acceptedLanguages))
        $acceptedLanguages = $_SERVER['HTTP_ACCEPT_LANGUAGE'];

    preg_match_all('/([a-z]{1,8}(-[a-z]{1,8})*)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', $acceptedLanguages, $lang_parse);
    $langs = $lang_parse[1];
    $ranks = $lang_parse[4];

    $lang2pref = array();
    for($i=0; $i<count($langs); $i++)
        $lang2pref[$langs[$i]] = (float)(!empty($ranks[$i]) ? $ranks[$i] : 1);

    $cmpLangs = function($a, $b) use ($lang2pref) {
        if($lang2pref[$a] > $lang2pref[$b])
            return -1;
        elseif($lang2pref[$a] < $lang2pref[$b])
            return 1;
        elseif(strlen($a) > strlen($b))
            return -1;
        elseif(strlen($a) < strlen($b))
            return 1;
        else
            return 0;
    };

    uksort($lang2pref, $cmpLangs);

    if($getSortedList)
        return $lang2pref;

    reset($lang2pref);
    return key($lang2pref);
}
?>