http://paypal.ebay.cn/integrationcenter/list__resource_2.html

中文php開發(fā)簡介：http://www.paypal-china.org/wangzhai/197.html

以下是ecshop中paypal的支付代碼

這段代碼是向paypal支付接口提交的

{{{

//商家注冊的郵箱

}}}

以下是官方提供的，接受到paypal傳回來的參數(shù)的，并且判斷是否支付成功。

支持成功后由于提交表單中有

paypal將會主動跳轉(zhuǎn)到espond.php?code=paypal這個(gè)頁面，頁面可現(xiàn)實(shí)以下POST得到的一些數(shù)據(jù)。

// read the post from PayPal system and add 'cmd'

$req = 'cmd=_notify-validate';

foreach ($_POST as $key => $value) {

$value = urlencode(stripslashes($value));

$req .= "&$key=$value";

}

// post back to PayPal system to validate

$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";

$header .= "Content-Type: application/x-www-form-urlencoded\r\n";

$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";

$fp = fsockopen ('ssl://www.paypal.com', 443, $errno, $errstr, 30);

// assign posted variables to local variables

$item_name = $_POST['item_name'];

$item_number = $_POST['item_number'];

$payment_status = $_POST['payment_status'];

$payment_amount = $_POST['mc_gross'];

$payment_currency = $_POST['mc_currency'];

$txn_id = $_POST['txn_id'];

$receiver_email = $_POST['receiver_email'];

$payer_email = $_POST['payer_email'];

if (!$fp) {

// HTTP ERROR

else {

fputs ($fp, $header . $req);

while (!feof($fp)) {

$res = fgets ($fp, 1024);

if (strcmp ($res, "VERIFIED") == 0) {

// check the payment_status is Completed

// check that txn_id has not been previously processed

// check that receiver_email is your Primary PayPal email

// check that payment_amount/payment_currency are correct

// process payment

}

else if (strcmp ($res, "INVALID") == 0) {

// log for manual investigation

}

}

fclose ($fp);

}

?>

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