does this hide my referral link ?

<?php

// Extract URI minus http://yourblog.blogger.com
$req_url = $_SERVER['REQUEST_URI'];

function selfURL() { $s = empty($_SERVER["HTTPS"]) ? '' : ($_SERVER["HTTPS"] == "on") ? "s" : ""; $protocol = strleft(strtolower($_SERVER["SERVER_PROTOCOL"]), "/").$s; $port = ($_SERVER["SERVER_PORT"] == "80") ? "" : (":".$_SERVER["SERVER_PORT"]); return $protocol."://".$_SERVER['SERVER_NAME'].$port.$_SERVER['REQUEST_URI']; }
function strleft($s1, $s2) { return substr($s1, 0, strpos($s1, $s2)); }
$full_url = selfURL();

// Extract the urls which we need
$script_name = $_SERVER['SCRIPT_NAME'];
$current_file = basename(__FILE__);
$dir = str_replace($current_file,'',$script_name);
$dir .= '?';
$offer = str_replace($dir,'',$req_url);
$offer = remove_attempt($offer);

$fallback = 'http://www.google.com/'; 

if (!isset($_REQUEST['attempt'])) $_REQUEST['attempt'] = 0;

switch ($_REQUEST['attempt']) {
    case 0:
        echo method0($offer,$full_url);
        break;
    case 1:
        echo method1($offer,$full_url);
        break;
    case 2:
        echo method2($offer,$full_url);
        break;
    case 3:
        echo method3($offer,$fallback);
        break;
    default:
        echo method0($offer,$full_url);
}

function method0($offer,$full_url) {
    $txt = '';
    $referer = '';
    if (isset($_SERVER['HTTP_REFERER'])) $referer = $_SERVER['HTTP_REFERER'];
    if ($referer == '' ) {
       // If blank redirect
      header('Location: '.$offer);
    } else {
        // Use method 0 to blank -> works mostly for IE and FF
        $txt = '<meta http-equiv="refresh" content="0; url='.$full_url.'&attempt=1">'; 
    }
    
    return $txt;
}

function method1($offer,$full_url) {
    $txt = '';
    $referer = '';
    if (isset($_SERVER['HTTP_REFERER'])) $referer = $_SERVER['HTTP_REFERER'];
    if ($referer == '' ) {
       // If blank redirect
       header('Location: '.$offer);
    } else {
        // Use method 1 to blank
        $txt = '<script>
          function go(){
        window.frames[0].document.body.innerHTML=\'<form target="_parent" method="post" action="'.$full_url.'&attempt=2">';
        $txt .= '</form>\';
            window.frames[0].document.forms[0].submit()
          } 
        </script>
        <iframe onload="window.setTimeout(\'go()\', 99)" src="about:blank" style="visibility:hidden"></iframe>';
    }    
        
    return $txt;
}

function method2($offer,$full_url) {
    $txt = '';
    $referer = '';
    if (isset($_SERVER['HTTP_REFERER'])) $referer = $_SERVER['HTTP_REFERER'];
    if ($referer == '' ) {
       // If blank redirect
       header('Location: '.$offer);
    } else {
        // Use method 2 to blank
        $txt = '<iframe src="javascript:parent.location=\''.$full_url.'&attempt=3\'" style="visibility:hidden"></iframe>';
    }    
        
    return $txt;
}

function method3($offer,$fallback) { // All methods tried
    $referer = '';
    if (isset($_SERVER['HTTP_REFERER'])) $referer = $_SERVER['HTTP_REFERER'];
    if ($referer == '' ) {
       // If blank redirect
       header('Location: '.$offer);
    } else {
       // No methods remaining -> send to fallback
       header('Location: '.$fallback);
    }    
        
    return $txt;
}

function remove_attempt($url) {
    $i = strpos($url,'&attempt=');
    if ($i > 0 ) $url = substr($url,0,$i);
    
    return $url;
}

function create_parameters($url) {
    $p1 = strpos ($url, '?');
    $p = array();

    if ($p1 > 0 ) {
        $url_no_par = substr ($url , 0, $p1);
        $p1 = $p1 + 1;
        $url_par = substr ($url , $p1);
        $paryval = explode ('&', $url_par);
        foreach ($paryval as $value) {
            $p[] = explode ('=',$value);
        }
    }
    
    return $p;
}

?>