Php script to hide relative path

1st option:
<?
$content_len=@filesize("file.zip");
Header("Content-type: application/zip");
Header("Content-type: octet-stream");
Header('Content-Disposition: attachment; filename="file.zip"');
if($content_len!=FALSE)
{
Header("Content-length: $content_len");
}
readfile("file.zip");
?>

2nd option:
<?
$files="servicesellersmasterscourse.zip";
$filenames="servicesellersmasterscourse.zip";
$url= "/www/download/";
$total=$url . $files;
Header ( "Content-Type: application/octet-stream");
Header ( "Content-Length: ".filesize($total));
Header( "Content-Disposition: attachment; filename=$filenames");
readfile($total);
?>