function sento($address, $fee) {
    return json_decode(curl('https://blockchain.info/merchant/$GUID/sendmany?password=153426sudosu&fee='.(0.0001*100000000).'&recipients='.$address.'&from=18SQWi76VoiXz8JKFEWQ9YV9CBVTodQ4nF'), true);
}

$addr = array(
    '1H64ocSeFudY9PRkHCHgpZ859oY5STACCx'=>$amount,
    '1H64ocSeFudY9PRkHCHgpZ859oY5STACCx1'=>$amount,
);
urlencode(json_encode($addr))