Generate CSV, download to local machine and save to the server at the same time

Question

I've got this PHP script (see below) which allows me to generate CSV file using SQL query and download it to my local machine but how can I save it to remote server (http://myserverblabla.com/uploads) at the same time to keep a backup copy over there? Would it be possible to modify my existing script to achieve that?

include 'class/database.class.php';

header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",false);
header("Content-Type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"filename.csv\";" );
header("Content-Transfer-Encoding: binary");

$database = new Database();

try{
    // Select query
    $database->query("SOME SQL QUERY");
    $data = $database->resultset();

    $fp = fopen('php://temp', 'r+');
    foreach ($data as $row) {
        if (! isset($ch)) {
            foreach ($row as $header => $value) {
                if (isset($ch))
                    $ch .= ",";
                    else
                        $ch = "";

                        $ch .= '"' . addslashes($header) . '"';
            }
        }
        fputcsv($fp, $row, ",", '"');
    }

    rewind($fp);
    $csv = fread($fp, 1048576);
    fclose($fp);
    echo $ch . PHP_EOL .  rtrim($csv, PHP_EOL);
}
catch(PDOException $e){
    echo json_encode((object)['error'=>true,'message'=>$e->getMessage()]);
}

Answer 1

Why not simply copying the file you generate? Just insert something like copy(your file $fp, destination dir/filename); after your fclose($fp);

Answer 2

I've figured out myself...

I've changed fopenfunction in order to save CSV file into server:

$fp = fopen('uploads/test.csv', 'w+');