קוד PHP:

<?
if (!defined("_Start_File_")) {
    define("_Start_File_",ture);
    include("./configs/constvars.php");
}
include(libs."/Functions".exec);
$from = getenv("HTTP_REFERER");
$domin = explode(".",$_SERVER['HTTP_HOST']);
if (count($domin)==2){
    $reg = "(http:\/\/|https:\/\/|)".$domin[0]."\.".$domin[1];
}
elseif (count($domin)==3){
    $reg = "(http:\/\/|https:\/\/|)".$domin[0]."\.".$domin[1]."\.".$domin[2];
}
else {
    $reg = "(http:\/\/|https:\/\/|)".$domin[0]."\.".$domin[1]."\.".$domin[2]."\.".$domin[3];
}
$reg.="\/TheSysWebs\/(admin\/|)(index\.php|)";
if (ereg($reg,$from)) {
    $_loc = $_REQUEST[loc];
    if (base64_decode($_loc) == "admin") {
        redirection_url($_SERVER['HTTP_HOST']."/TheSysWebs/admin/ref.php".$_REQUEST[urlstx],2);
    }
    else {

    }
}
else {
    die($from ." = ".$reg);
}

הארור שלו הוא

Warning: ereg(): REG_EMPTY in /home/sivan/domains/sivan.mooo.com/public_html/TheSysWebs/ref.php on line 19
http://sivan.mooo.com/TheSysWebs/ = (http:\/\/|https:\/\/|)sivan\.mooo\.com\/TheSysWebs\/(admin\/|)(index\.php|)
ראשי לציין שאין לי מושג מה ואיפה