<?
ob_start();
    $order = ob_get_contents();
    ob_end_clean();

    $file = fopen("file.txt","w");
        fwrite($file, $order);
    fclose($file);

    $hash = $order['hash'];

    $file = fopen("test.txt","w");
        fwrite($file, $hash);
    fclose($file);
?>