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Regarding PayPal IPN listener page

Thread began 2/07/2023 7:16 am by Jared Lui | Last modified 2/10/2023 3:15 pm by Jared Lui | 722 views | 14 replies

Ray BorduinWebAssist

Here is a function i wrote a while ago...


function WA_isValidPayPal()     {
$retVal false;
$req 'cmd=_notify-validate';
  foreach (
$_POST as $key => $value) {
$value urlencode(stripslashes($value));
$req .= "&$key=$value";
$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";
$fp fsockopen (''80$errno$errstr30);
  if (!
$fp) {
$retVal false;
  else {
fputs ($fp$header $req);
    while (!
feof($fp)) {
$res fgets ($fp1024);
      if (
strcmp ($res"VERIFIED") == 0) {
$retVal true;
      else if (
strcmp ($res"INVALID") == 0) {
$retVal false;
fclose ($fp);

You could add that and then just use the trigger:

if (WA_isValidPayPal()) {
// insert code here

But my code is similar to theirs so it might not work either. The missing field values are probably because you have your form values wrong for your POST. You can probably get those better with something like:


Then your test.txt file will have all of the form fields posted and their values so you can pick through and see what you need.

Did this help? Tips are appreciated...

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