Someone

print_r = function(v) {
  return _print_r("", v, "");
}
_print_r = function(k, v, indent) {
  if(k != "") {
    k = k + " => ";
  }
  var o = typeof v;
  if(o.indexOf('bject') == -1) {
    return indent + k + v;
  }
  var output = indent + "object (\n";
  for(i in v) {
    output += _print_r(i, v[i], indent + "  ") + "\n";
  }
  output += indent + ")";
  return output;
}