<?
 
//Tracking202 Landing Page Rotation Script

//landing pages filenames, theses will be rotated between eachother
//theses landing pages must be in the same DIRECTORY as this file
//you can add as many landing pages here as you like

function redirect_url($url, $statusCode = 302)
{
   header('Location: ' . $url, true, $statusCode);
   die();
}

function get_cart($landingpage){
    //this is the text file, which will be stored in the same directory as this file, 
    //count.txt needs to be CHMOD to 777, full privlledges, to read and write to it.
    $myFile = "count.txt";
    
    //open the txt file
    $fh = @fopen($myFile, 'r');
    $lpNumber = @fread($fh, 5);
    @fclose($fh);
    
    $lpNumber = (int)$lpNumber;
    
    
    //see which landing page is next in line to be shown.
    if ($lpNumber >= count($landingpage)) {
        $lpNumber = 1;
    } else {
        $lpNumber = $lpNumber + 1; 
    }
    
    //write to the txt file.
    $fh = fopen($myFile, 'w') or die("can't open file");
    $stringData = $lpNumber . "\n";
    fwrite($fh, $stringData);
    fclose($fh);
    
    return $landingpage[$lpNumber];
}


$landingpage[1] = '1month.php';


$cookie_name = "a_cart";

if(!isset($_COOKIE[$cookie_name])){
    //cookie doesnot exist, set cart and then cookie
    $cookie_value = get_cart($landingpage);
    $a_cart = $cookie_value;
    setcookie($cookie_name, $cookie_value, time() + (86400 * 30), "/"); // 86400 = 1 day
    
}else{
    $a_cart = $_COOKIE[$cookie_name];
    if(!in_array($a_cart,$landingpage)){
        //cookie exist, but not a valid cart (removed from test)
        $cookie_value = get_cart($landingpage);
        $a_cart = $cookie_value;
        setcookie($cookie_name, $cookie_value, time() + (86400 * 30), "/"); // 86400 = 1 day
    }
}

redirect_url('https://vpnwhiz.com/test/advancedvpn/redirects/'.$a_cart.'?'.http_build_query($_GET));

?>