gistfile1.php

$fp = fsockopen ('ssl://www.sandbox.paypal.com', "443", $errno, $errstr, 30);
//$fp = fsockopen ('www.paypal.com', 80, $errno, $errstr, 30); 
if (!$fp) {
// HTTP ERROR
//sending a mail with error
}
else
{
  fputs ($fp, $header . $req);
  
  
  while (!feof($fp)) {
    $res = fgets ($fp, 1024);
  
if (strcmp ($res, "VERIFIED") == 0) {
 $payment_status = $_POST['payment_status'];
      $payment_amount = $_POST['mc_gross'];
      $payment_currency = $_POST['mc_currency'];
      $txn_id = $_POST['txn_id'];
      $receiver_email = $_POST['receiver_email'];
   $payment_date = $_POST['payment_date'];
 $pending_reason = $_POST['pending_reason'];
//some code follows that's used to update tables n send mails
}}}