paypal即时到账php实现代码

中文php开发简介：
以下是ecshop中paypal的支付代码

这段代码是向paypal支付接口提交的
{{{

<form target="_blank" method="post" action="https://www.paypal.com/cgi-bin/webscr"><input type="hidden" value="_xclick"/><input type="hidden" value="xfuajiao@hotmail.com"/> //商家注册的邮箱
<input type="hidden" value="2009102370175"/><input type="hidden" value="2888.00"/><input type="hidden" value="USD"/><input type="hidden" value="http://127.0.0.1/ecshop/respond.php?code=paypal"/><input type="hidden" value="3"/><input type="hidden" value="utf-8"/><input type="hidden" value="1"/><input type="hidden" value=""/><input type="hidden" value="http://127.0.0.1/ecshop/respond.php?code=paypal"/><input type="hidden" value="2"/><input type="hidden" value="http://127.0.0.1/ecshop/"/><input type="submit" value="立即使用 paypal 支付"/></form>

}}}

以下是官方提供的，接受到paypal传回来的参数的，并且判断是否支付成功。

支持成功后由于提交表单中有


<input type="hidden" value="http://127.0.0.1/ecshop/respond.php?code=paypal"/>

paypal将会主动跳转到espond.php?code=paypal这个页面，页面可现实以下POST得到的一些数据。

复制代码 代码如下:

// 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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