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copied!<pre><code>$paypal_email = '5345345345345f'; $cur_dir='http://'.$_SERVER['SERVER_NAME'] . dirname($_SERVER['REQUEST_URI']); $return_url = $cur_dir.'/paymentsucess.php'; $cancel_url = $cur_dir.'/payment-not-sucess.php'; $notify_url = $cur_dir.'/payments.php'; extract($_POST); $item_name = $exam_name; $item_amount = $amount; $userid=$userid; if (!isset($_POST["txn_id"]) && !isset($_POST["txn_type"])){ $querystring = "?business=".urlencode($paypal_email)."&"; $querystring .= "item_name=".urlencode($item_name)."&"; $querystring .= "amount=".urlencode($item_amount)."&"; //loop for posted values and append to querystring foreach($_POST as $key => $value){ $value = urlencode(stripslashes($value)); $querystring .= "$key=$value&"; } $querystring .= "return=".urlencode(stripslashes($return_url))."&"; $querystring .= "cancel_return=".urlencode(stripslashes($cancel_url))."&"; $querystring .= "notify_url=".urlencode($notify_url); header('location:https://www.paypal.com/cgi-bin/webscr'.$querystring); exit(); }else{ $req = 'cmd=_notify-validate'; foreach ($_POST as $key => $value) { $value = urlencode(stripslashes($value)); $value = preg_replace('/(.*[^%^0^D])(%0A) (.*)/i','${1}%0D%0A${3}',$value);// IPN fix $req .= "&$key=$value"; } $data['item_name'] = $_POST['item_name']; $data['item_number'] = $_POST['item_number']; $data['payment_status'] = $_POST['payment_status']; $data['payment_amount'] = $_POST['mc_gross']; $data['payment_currency'] = $_POST['mc_currency']; $data['txn_id'] = $_POST['txn_id']; $data['receiver_email'] = $_POST['receiver_email']; $data['payer_email'] = $_POST['payer_email']; $data['custom'] = $_POST['custom']; $data['userid'] = $_POST['userid']; // post back to PayPal system to validate $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 ('ssl://www.paypal.com', 443, $errno, $errstr, 30); if (!$fp) { // HTTP ERROR } else { fputs ($fp, $header . $req); while (!feof($fp)) { $res = fgets ($fp, 1024); if (strcmp ($res, "VERIFIED") == 0) { // Validate payment (Check unique txnid & correct price) $valid_txnid = check_txnid($data['txn_id']); $valid_price = check_price($data['payment_amount'], $data['item_number']); // PAYMENT VALIDATED & VERIFIED! if($valid_txnid && $valid_price){ $orderid = updatePayments($data); if($orderid){ }else{ } }else{ } }else if (strcmp ($res, "INVALID") == 0) { } } fclose ($fp); } } </code></pre>

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