我已经实现了paypal ipn进程。我想从ipn中检索一些数据并将其保存在数据库表中。问题是它不起作用。我使用了教程 http://tutorialzine.com/2010/05/donation-center-php-mysql-paypal-api/
中的部分程序Nelow是我用过的代码。 的 ipn.php
<?php
require "paypal_integration_class/paypal.class.php";
require "config.php";
require "connect.php";
$p = new paypal_class;
$p->paypal_url = $payPalURL;
if ($p->validate_ipn()) {
if($p->ipn_data['payment_status']=='Completed')
{
$amount = $p->ipn_data['mc_gross'] - $p->ipn_data['mc_fee'];
mysql_query(" INSERT INTO dc_donations (transaction_id,donor_email,amount,original_request)
VALUES (
'".esc($p->ipn_data['txn_id'])."',
'".esc($p->ipn_data['payer_email'])."',
".(float)$amount.",
'".esc(http_build_query($_POST))."'
)");
}
}
function esc($str)
{
global $link;
return mysql_real_escape_string($str,$link);
}
?>
connect.php
/* Database config */
$db_host = "localhost";
$db_user = "egesachi_ipn";
$db_pass = "lollipop";
$db_database = "egesachi_ipn";
/* End config */
$link = @mysql_connect($db_host,$db_user,$db_pass) or die('Unable to establish a DB connection');
mysql_set_charset('utf8');
mysql_select_db($db_database,$link);
?>
的config.php
<?php
// Fill your PayPal email below.
// This is where you will receive the donations.
$myPayPalEmail = 'ben@center.org';
// The paypal URL:
$payPalURL = 'https://www.sandbox.paypal.com/cgi-bin/webscr';
// Your goal in USD:
$goal = 100;
// Demo mode is set - set it to false to enable donations.
// When enabled PayPal is bypassed.
$demoMode = false;
if($demoMode)
{
$payPalURL = 'demo_mode.php';
}
?>
paypal_integration_class / paypal.class.php 以下是上述脚本所在的URL。 的 http://www.phpclasses.org/package/2249-PHP-Process-Paypal-payment-interactions.html
class paypal_class {
var $last_error; // holds the last error encountered
var $ipn_log; // bool: log IPN results to text file?
var $ipn_log_file; // filename of the IPN log
var $ipn_response; // holds the IPN response from paypal
var $ipn_data = array(); // array contains the POST values for IPN
var $fields = array(); // array holds the fields to submit to paypal
function paypal_class() {
// initialization constructor. Called when class is created.
$this->paypal_url = 'https://www.paypal.com/cgi-bin/webscr';
$this->last_error = '';
$this->ipn_log_file = 'ipn_log.txt';
$this->ipn_log = true;
$this->ipn_response = '';
// populate $fields array with a few default values. See the paypal
// documentation for a list of fields and their data types. These defaul
// values can be overwritten by the calling script.
$this->add_field('rm','2'); // Return method = POST
$this->add_field('cmd','_xclick');
}
function add_field($field, $value) {
// adds a key=>value pair to the fields array, which is what will be
// sent to paypal as POST variables. If the value is already in the
// array, it will be overwritten.
$this->fields["$field"] = $value;
}
function submit_paypal_post() {
// this function actually generates an entire HTML page consisting of
// a form with hidden elements which is submitted to paypal via the
// BODY element's onLoad attribute. We do this so that you can validate
// any POST vars from you custom form before submitting to paypal. So
// basically, you'll have your own form which is submitted to your script
// to validate the data, which in turn calls this function to create
// another hidden form and submit to paypal.
// The user will briefly see a message on the screen that reads:
// "Please wait, your order is being processed..." and then immediately
// is redirected to paypal.
echo "<html>\n";
echo "<head><title>Processing Payment...</title></head>\n";
echo "<body onLoad=\"document.form.submit();\">\n";
echo "<center><h3>Please wait, your order is being processed...</h3></center>\n";
echo "<form method=\"post\" name=\"form\" action=\"".$this->paypal_url."\">\n";
foreach ($this->fields as $name => $value) {
echo "<input type=\"hidden\" name=\"$name\" value=\"$value\">";
}
echo "</form>\n";
echo "</body></html>\n";
}
function validate_ipn() {
// parse the paypal URL
$url_parsed=parse_url($this->paypal_url);
// generate the post string from the _POST vars aswell as load the
// _POST vars into an arry so we can play with them from the calling
// script.
$post_string = '';
foreach ($_POST as $field=>$value) {
$this->ipn_data["$field"] = $value;
$post_string .= $field.'='.urlencode($value).'&';
}
$post_string.="cmd=_notify-validate"; // append ipn command
// open the connection to paypal
$fp = fsockopen($url_parsed[host],"80",$err_num,$err_str,30);
if(!$fp) {
// could not open the connection. If loggin is on, the error message
// will be in the log.
$this->last_error = "fsockopen error no. $errnum: $errstr";
$this->log_ipn_results(false);
return false;
} else {
// Post the data back to paypal
fputs($fp, "POST $url_parsed[path] HTTP/1.1\r\n");
fputs($fp, "Host: $url_parsed[host]\r\n");
fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
fputs($fp, "Content-length: ".strlen($post_string)."\r\n");
fputs($fp, "Connection: close\r\n\r\n");
fputs($fp, $post_string . "\r\n\r\n");
// loop through the response from the server and append to variable
while(!feof($fp)) {
$this->ipn_response .= fgets($fp, 1024);
}
fclose($fp); // close connection
}
if (eregi("VERIFIED",$this->ipn_response)) {
// Valid IPN transaction.
$this->log_ipn_results(true);
return true;
} else {
// Invalid IPN transaction. Check the log for details.
$this->last_error = 'IPN Validation Failed.';
$this->log_ipn_results(false);
return false;
}
}
function log_ipn_results($success) {
if (!$this->ipn_log) return; // is logging turned off?
// Timestamp
$text = '['.date('m/d/Y g:i A').'] - ';
// Success or failure being logged?
if ($success) $text .= "SUCCESS!\n";
else $text .= 'FAIL: '.$this->last_error."\n";
// Log the POST variables
$text .= "IPN POST Vars from Paypal:\n";
foreach ($this->ipn_data as $key=>$value) {
$text .= "$key=$value, ";
}
// Log the response from the paypal server
$text .= "\nIPN Response from Paypal Server:\n ".$this->ipn_response;
// Write to log
$fp=fopen($this->ipn_log_file,'a');
fwrite($fp, $text . "\n\n");
fclose($fp); // close file
}
function dump_fields() {
// Used for debugging, this function will output all the field/value pairs
// that are currently defined in the instance of the class using the
// add_field() function.
echo "<h3>paypal_class->dump_fields() Output:</h3>";
echo "<table width=\"95%\" border=\"1\" cellpadding=\"2\" cellspacing=\"0\">
<tr>
<td bgcolor=\"black\"><b><font color=\"white\">Field Name</font></b></td>
<td bgcolor=\"black\"><b><font color=\"white\">Value</font></b></td>
</tr>";
ksort($this->fields);
foreach ($this->fields as $key => $value) {
echo "<tr><td>$key</td><td>".urldecode($value)." </td></tr>";
}
echo "</table><br>";
}
}
paypal html结帐表单
<form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post">
<!-- Identify your business so that you can collect the payments. -->
<input type="hidden" name="business"
value="ben@egesachildrencenter.org">
<!-- Specify a Donate button. -->
<input type="hidden" name="cmd" value="_donations">
<!-- Specify details about the contribution -->
<input type="hidden" name="item_name" value="<?php echo $sponsored; ?>">
<input type="hidden" name="item_number" value="<?php echo $pupilid; ?>">
<input type="hidden" name="amount" value="25.00">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="return" value="http://www.center.org/pap/needy.php">
<input type="hidden" name="notify_url" value="http://www.center.org/pap/ipn.php">
<!-- Display the payment button. -->
<input type="image" name="submit" border="0"
src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif"
alt="PayPal - The safer, easier way to pay online">
<img alt="" border="0" width="1" height="1"
src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" >
</form>
请帮我找出错误的地方或建议另一种方法来达到同样的效果。感谢。