我有一个捐赠网站。在收到捐款后，我希望收到一封电子邮件，其中包含在此处输入的买家用户名：
<input type="text" name="custom" value="Enter your Minecraft username here!"><br /><br />
我将如何获取该用户名并将其通过电子邮件发送到我的电子邮件？
这是贝宝的ipn：
<?php
/**
* PayPal IPN Listener
*
* A class to listen for and handle Instant Payment Notifications (IPN) from
* the PayPal server.
*
* https://github.com/Quixotix/PHP-PayPal-IPN
*
* @package PHP-PayPal-IPN
* @author Micah Carrick
* @copyright (c) 2011 - Micah Carrick
* @version 2.0.5
* @license http://opensource.org/licenses/gpl-3.0.html
*/
include('config.php');
ini_set('log_errors', true);
ini_set('error_log', dirname(__FILE__).'/donator_errors.log');
error_log('abc');
class IpnListener {
public $use_curl = true;
public $force_ssl_v3 = true;
public $follow_location = false;
public $use_ssl = true;
public $use_sandbox = false;
public $timeout = 30;
private $post_data = array();
private $post_uri = '';
private $response_status = '';
private $response = '';
const PAYPAL_HOST = 'www.paypal.com';
const SANDBOX_HOST = 'www.sandbox.paypal.com';
protected function curlPost($encoded_data) {
if ($this->use_ssl) {
$uri = 'https://'.$this->getPaypalHost().'/cgi-bin/webscr';
$this->post_uri = $uri;
} else {
$uri = 'http://'.$this->getPaypalHost().'/cgi-bin/webscr';
$this->post_uri = $uri;
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $uri);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $encoded_data);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, $this->follow_location);
curl_setopt($ch, CURLOPT_TIMEOUT, $this->timeout);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, true);
if ($this->force_ssl_v3) {
curl_setopt($ch, CURLOPT_SSLVERSION, 3);
}
$this->response = curl_exec($ch);
$this->response_status = strval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
if ($this->response === false || $this->response_status == '0') {
$errno = curl_errno($ch);
$errstr = curl_error($ch);
throw new Exception("cURL error: [$errno] $errstr");
}
}
protected function fsockPost($encoded_data) {
if ($this->use_ssl) {
$uri = 'ssl://'.$this->getPaypalHost();
$port = '443';
$this->post_uri = $uri.'/cgi-bin/webscr';
} else {
$uri = $this->getPaypalHost(); // no "http://" in call to fsockopen()
$port = '80';
$this->post_uri = 'http://'.$uri.'/cgi-bin/webscr';
}
$fp = fsockopen($uri, $port, $errno, $errstr, $this->timeout);
if (!$fp) {
throw new Exception("fsockopen error: [$errno] $errstr");
}
$header = "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: ".strlen($encoded_data)."\r\n";
$header .= "Connection: Close\r\n\r\n";
fputs($fp, $header.$encoded_data."\r\n\r\n");
while(!feof($fp)) {
if (empty($this->response)) {
$this->response .= $status = fgets($fp, 1024);
$this->response_status = trim(substr($status, 9, 4));
} else {
$this->response .= fgets($fp, 1024);
}
}
fclose($fp);
}
private function getPaypalHost() {
if ($this->use_sandbox) return IpnListener::SANDBOX_HOST;
else return IpnListener::PAYPAL_HOST;
}
public function getPostUri() {
return $this->post_uri;
}
public function getResponse() {
return $this->response;
}
public function getResponseStatus() {
return $this->response_status;
}
public function getTextReport() {
$r = '';
for ($i=0; $i<80; $i++) { $r .= '-'; }
$r .= "\n[".date('m/d/Y g:i A').'] - '.$this->getPostUri();
if ($this->use_curl) $r .= " (curl)\n";
else $r .= " (fsockopen)\n";
for ($i=0; $i<80; $i++) { $r .= '-'; }
$r .= "\n{$this->getResponse()}\n";
for ($i=0; $i<80; $i++) { $r .= '-'; }
$r .= "\n";
foreach ($this->post_data as $key => $value) {
$r .= str_pad($key, 25)."$value\n";
}
$r .= "\n\n";
return $r;
}
public function processIpn($post_data=null) {
$encoded_data = 'cmd=_notify-validate';
if ($post_data === null) {
if (!empty($_POST)) {
$this->post_data = $_POST;
$encoded_data .= '&'.file_get_contents('php://input');
} else {
throw new Exception("No POST data found.");
}
} else {
$this->post_data = $post_data;
foreach ($this->post_data as $key => $value) {
$encoded_data .= "&$key=".urlencode($value);
}
}
if ($this->use_curl) $this->curlPost($encoded_data);
else $this->fsockPost($encoded_data);
if (strpos($this->response_status, '200') === false) {
throw new Exception("Invalid response status: ".$this->response_status);
}
if (strpos($this->response, "VERIFIED") !== false) {
return true;
} elseif (strpos($this->response, "INVALID") !== false) {
return false;
} else {
throw new Exception("Unexpected response from PayPal.");
}
}
public function requirePostMethod() {
// require POST requests
if ($_SERVER['REQUEST_METHOD'] && $_SERVER['REQUEST_METHOD'] != 'POST') {
header('Allow: POST', true, 405);
throw new Exception("Invalid HTTP request method.");
}
}
}
// Start IPN listener by chaseoes.
$listener = new IpnListener();
$listener->use_sandbox = false;
try {
$listener->requirePostMethod();
$verified = $listener->processIpn();
} catch (Exception $e) {
error_log($e->getMessage());
exit(0);
}
if ($verified) {
$errmsg = '';
if ($_POST['payment_status'] != 'Completed') {
exit(0);
}
if ($_POST['receiver_email'] != $seller_email) {
$errmsg .= "'receiver_email' does not match: ";
$errmsg .= $_POST['receiver_email']."\n";
}
if ($_POST['mc_currency'] != $currency) {
$errmsg .= "'mc_currency' does not match: ";
$errmsg .= $_POST['mc_currency']."\n";
}
if (empty($errmsg)) {
$user = $_POST['custom'];
error_log($user);
$gross = $_POST['mc_gross'];
error_log($gross);
$date = $_POST['payment_date'];
$sandbox = $listener->use_sandbox;
$firstname = $_POST['first_name'];
$lastname = $_POST['last_name'];
$payeremail = $_POST['payer_email'];
$con = mysql_connect($host,$username,$password);
if (!$con) {
error_log("MySQL connection error.");
}
mysql_select_db("$database_name", $con);
mysql_query("INSERT INTO donations (username, amount, date, processed, sandbox, first_name, last_name, payer_email, expires, expired)
VALUES ('$user','$gross','$date','false','$sandbox','$firstname','$lastname','$payeremail','null','false')");
mysql_close($con);
}
}
// End IPN listener by chaseoes.
?>