PayPal - Instant Payment Notification / doDirectPayment in PHP - php

Question

I have built a IPN Listener and tested it with the IPN Simulator in sandbox and it works fine, however when I add the "NOTIFYURL" parameter and set it to my IPN Listener I do not get any notifications from my listener, but payment still goes through.
Is there something else I have to do to get this to work?
Here's my codes
My IPN Listener (for the purposes of testing it simply Imports the entire result into a SQL Table)
include "dbconnect.php";
$request = "cmd=_notify-validate";
foreach ($_POST as $varname => $varvalue){
$email .= "$varname: $varvalue\n";
if(function_exists('get_magic_quotes_gpc') and get_magic_quotes_gpc()){
$varvalue = urlencode(stripslashes($varvalue));
}
else {
$value = urlencode($value);
}
$request .= "&$varname=$varvalue";
}
mysql_query("INSERT INTO `test` (`nvps`) VALUES ('".$email."')");
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,"https://www.sandbox.paypal.com/cgi-bin/webscr");
//curl_setopt($ch,CURLOPT_URL,"https://www.paypal.com");
curl_setopt($ch,CURLOPT_POST,true);
curl_setopt($ch,CURLOPT_POSTFIELDS,$request);
curl_setopt($ch,CURLOPT_FOLLOWLOCATION,false);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
$result = curl_exec($ch);
curl_close($ch);
The portion of my payment processing script that interacts with paypal:
// Store request params in an array
$request_params = array
(
'METHOD' => 'DoDirectPayment',
'USER' => $api_username,
'PWD' => $api_password,
'SIGNATURE' => $api_signature,
'VERSION' => $api_version,
'PAYMENTACTION' => 'Sale',
'IPADDRESS' => $_SERVER['REMOTE_ADDR'],
'CREDITCARDTYPE' => 'Visa',
'ACCT' => '4887864152287206',
'EXPDATE' => '072018',
'CVV2' => '123',
'FIRSTNAME' => 'Tester',
'LASTNAME' => 'Testerson',
'STREET' => '707 W. Bay Drive',
'CITY' => 'Largo',
'STATE' => 'FL',
'COUNTRYCODE' => 'US',
'ZIP' => '33770',
'AMT' => '100.00',
'CURRENCYCODE' => 'USD',
'NOTIFYURL' => 'http://www.mysite.com/ipnlistener.php',
'DESC' => 'Testing Payments Pro'
);
// Loop through $request_params array to generate the NVP string.
$nvp_string = '';
foreach($request_params as $var=>$val)
{
$nvp_string .= '&'.$var.'='.urlencode($val);
}
// Send NVP string to PayPal and store response
$curl = curl_init();
curl_setopt($curl, CURLOPT_VERBOSE, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_TIMEOUT, 30);
curl_setopt($curl, CURLOPT_URL, $api_endpoint);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $nvp_string);
$result = curl_exec($curl);
echo $result.'<br /><br />';
mysql_query("INSERT INTO `test` (`nvps`) VALUES ('".$result."')");
Why aren't I getting my notifications?

Answer 1

Can you take a look at the PHP IPN script over at https://github.com/paypal/ipn-code-samples/blob/master/IPN_PHP.txt?
Leave USE_SANDBOX and USE_DEBUG enabled and create an empty file called 'ipn.txt' in the same directory (writable by the webserver).
This will log all steps of the IPN process (receiving it, posting it back, verifying the results, etc). Should anything, that should make it clear.

Answer 2

the purpose of the ipn listener is for paypal to pass back payment info so you can process it, it will not send you any notifications as such unless you add things like a log file, where each payment status is logged or send email to yourself about processed payments (whether they failed or not)