Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- <?php
- // Database variables
- $host = "localhost"; //database location
- $user = ""; //database username
- $pass = ""; //database password
- $db_name = ""; //database name
- // PayPal settings
- $paypal_email = 'pitruk99@gmail.com';
- $return_url = 'http://www.bluemc.pl/sklep/paypal/payment-successful.html';
- $cancel_url = 'http://www.bluemc.pl/sklep/paypal/payment-cancelled.html';
- $notify_url = 'http://www.bluemc.pl/sklep/paypal/payments.php';
- $item_name = 'Test Item';
- $item_amount = 1;
- // Include Functions
- include("functions.php");
- // Check if paypal request or response
- if (!isset($_POST["txn_id"]) && !isset($_POST["txn_type"])){
- $querystring = '';
- // Firstly Append paypal account to querystring
- $querystring .= "?business=".urlencode($paypal_email)."&";
- // Append amount& currency (£) to quersytring so it cannot be edited in html
- //The item name and amount can be brought in dynamically by querying the $_POST['item_number'] variable.
- $querystring .= "item_name=".urlencode($item_name)."&";
- $querystring .= "amount=".urlencode($item_amount)."&";
- $querystring .= "currency_code=PLN&";
- //loop for posted values and append to querystring
- foreach($_POST as $key => $value){
- $value = urlencode(stripslashes($value));
- $querystring .= "$key=$value&";
- }
- // Append paypal return addresses
- $querystring .= "return=".urlencode(stripslashes($return_url))."&";
- $querystring .= "cancel_return=".urlencode(stripslashes($cancel_url))."&";
- $querystring .= "notify_url=".urlencode($notify_url);
- // Append querystring with custom field
- //$querystring .= "&custom=".USERID;
- // Redirect to paypal IPN
- header('location:https://www.paypal.com/cgi-bin/webscr'.$querystring);
- exit();
- } else {
- //Database Connection
- $link = mysql_connect($host, $user, $pass);
- mysql_select_db($db_name);
- // Response from Paypal
- // read the post from PayPal system and add 'cmd'
- $req = 'cmd=_notify-validate';
- foreach ($_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";
- }
- // assign posted variables to local variables
- $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'];
- // 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($res, "VERIFIED") == 0) {
- // Used for debugging
- // mail('user@domain.com', 'PAYPAL POST - VERIFIED RESPONSE', print_r($post, true));
- // 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 ($orderid) {
- // Payment has been made & successfully inserted into the Database
- } else {
- // Error inserting into DB
- // E-mail admin or alert user
- // mail('user@domain.com', 'PAYPAL POST - INSERT INTO DB WENT WRONG', print_r($data, true));
- }
- } else {
- // Payment made but data has been changed
- // E-mail admin or alert user
- }
- } else if (strcmp ($res, "INVALID") == 0) {
- // PAYMENT INVALID & INVESTIGATE MANUALY!
- // E-mail admin or alert user
- // Used for debugging
- //@mail("user@domain.com", "PAYPAL DEBUGGING", "Invalid Response<br />data = <pre>".print_r($post, true)."</pre>");
- }
- }
- fclose ($fp);
- }
- }
- ?>
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement