On the ones that fail we are getting a complete and valid message from the PayPal server so we are happy on our end. After sending back the verification using PHP Curl the PayPal sends us the usual response and $res is set to "VERIFIED";
I've compared the message in the IPN History of what was sent, to the message we returned to PayPal for verification and they are the same. Nevertheless the PayPal server thinks the transmission failed and keeps trying again.
Our response verification code.
$req = 'cmd=_notify-validate';
foreach ($myPost as $key => $value) {
$value = urlencode($value);
$req .= "&$key=$value";
}
$text = str_replace("&","\n",$req);
$text .= "\n\n\n";
file_put_contents("/srv/www/oiyc.org/public_html/PayPal/payments/paypal_req.txt", $text, FILE_APPEND);
// Step 2: POST IPN data back to PayPal to validate
$ch = curl_init('https://ipnpb.paypal.com/cgi-bin/webscr');
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_USERAGENT,'PHP-IPN-VerificationScript');
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $req);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: Close'));
if ( !($res = curl_exec($ch)) ) {
fwrite($fpx,"\nGot " . curl_error($ch) . " when processing IPN data");
fwrite($fpx, "\n\nreq:\n" . $req . "\n");
fclose($fpx);
curl_close($ch);
exit;
}
$text = print_r(curl_getinfo($ch),true);
$text .= "\n\n";
file_put_contents("/srv/www/oiyc.org/public_html/PayPal/payments/curl_getinfo.txt", $text, FILE_APPEND);
curl_close($ch);
