Paypal 贝宝定期付款-立即收费？

我使用贝宝API，我想创建一个定期付款，第一笔金额应立即收取。我需要知道为用户解锁内容是否成功。我究竟怎样才能做到这一点

$fields = array(




    'USER' => urlencode('email'),

    'PWD' => urlencode('pass'),

    'SIGNATURE' => urlencode('signature'),

    'METHOD' => urlencode('GetExpressCheckoutDetails'),

    'VERSION' => urlencode('86'),

    'TOKEN' => urlencode($_GET['token'])




);


//url-ify the data for the POST
foreach($fields as $key=>$value) { $fields_string .= $key.'='.$value.'&'; }
rtrim($fields_string, '&');




$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"https://api-3t.sandbox.paypal.com/nvp");
curl_setopt($ch, CURLOPT_POST, count($fields));
curl_setopt($ch, CURLOPT_POSTFIELDS,$fields_string);  //Post Fields
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);


$server_output = curl_exec ($ch);

curl_close ($ch);




// Get PAYERID of 1. query

$payerid = parseNVP($server_output);

$payerid = $payerid['PAYERID'];





$fields2 = array(




    'USER' => urlencode('Email'),

    'PWD' => urlencode('Pass'),

    'SIGNATURE' => urlencode('Signature'),

    'METHOD' => urlencode('CreateRecurringPaymentsProfile'),

    'VERSION' => urlencode('86'),

    'TOKEN' => urlencode($_GET['token']),

    'PAYERID' => urlencode($payerid),

'PROFILESTARTDATE' => urlencode(date('Y-m-d').'T'.date('H:i:s', strtotime('-5 minutes')).'Z'),

'DESC' => urlencode('FitnessMembership'),

'BILLINGPERIOD' => urlencode('Day'),

'BILLINGFREQUENCY' => urlencode('1'),

'AMT' => urlencode($price),

'CURRENCYCODE' => urlencode('USD'),

'COUNTRYCODE' => urlencode('US'),

'MAXFAILEDPAYMENTS' => urlencode('3')





);

贝宝结果：

 [2016-04-12 12:50 America/New_York] Verified IPN:cmd=_notify-validate&
payment_cycle=Daily&
txn_type=recurring_payment_profile_created&
last_name=Mustermann&
next_payment_date=03%3A00%3A00+Apr+12%2C+2016+PDT&
residence_country=US&
initial_payment_amount=0.00&
currency_code=USD&
time_created=09%3A49%3A25+Apr+12%2C+2016+PDT&
verify_sign=AJjtUEC2-zvkp.2Yz8a-.FGmZ2b3AoUov3DJ70yddjCmc1KidQVDeZHd&
period_type=+Regular&
payer_status=verified&
test_ipn=1&
tax=0.00&
payer_email=gut%40gut.de&
first_name=Hendrik&
receiver_email=hendrik.tewes-facilitator%40live.de&
payer_id=6AJ2HHWAPZSF6&
product_type=1&shipping=0.00&
amount_per_cycle=119.00&
profile_status=Active&
charset=windows-1252&
notify_version=3.8&
amount=119.00&
outstanding_balance=0.00&
recurring_payment_id=I-8P0534LSX2A3&
product_name=FitnessMembership&
ipn_track_id=59fede576b95c

---

您可以在为快速结帐创建定期付款配置文件时收取初始金额。 这是来自PayPal开发者网站的
在

CreateRecurringPaymentsProfile

API调用中，需要使用变量

INITAMT

以下是来自PayPal开发者网站的更多信息：

初始金额

（可选）初始非经常性付款金额应在 配置文件创建。将初始金额用于注册或设置费用

注意：请求中包含的所有金额必须使用相同的货币

字符长度和限制：

值通常为正数，不得超过10000.00美元 或货币的每笔交易限额。它不包括货币 象征。大多数货币需要两位小数；小数点 分隔符必须是句点（.）和可选的千位分隔符 必须是逗号（，）。有些货币不允许小数。见 货币代码页了解详细信息