title: PayPal IPN Live INVALID
body: <p>I have a listener.php and a normal form for my customer to pay with paypal.
  i would identicate the payment so i want to use die IPN from paypal.</p>
  
  <p>if i test the skript in the sandbox, i geht verified.
  so i like to go live, so i change the address to <a href="https://www.paypal.com/cgi-bin/webscr" rel="nofollow">https://www.paypal.com/cgi-bin/webscr</a>.</p>
  
  <p>if i test it live, i get everytime invalid. </p>
  
  <p>my codes:</p>
  
  <p>listener.php:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;?php
  error_reporting(e_all);
  // CONFIG: Enable debug mode. This means we'll log requests into 'ipn.log' in the same directory.
  // Especially useful if you encounter network errors or other intermittent problems with IPN (validation).
  // Set this to 0 once you go live or don't require logging.
  define("DEBUG", 1);
  // Set to 0 once you're ready to go live
  define("USE_SANDBOX", 0);
  define("LOG_FILE", "./ipn.log");
  // Read POST data
  // reading posted data directly from $_POST causes serialization
  // issues with array data in POST. Reading raw POST data from input stream instead.
  $raw_post_data = file_get_contents('php://input');
  $raw_post_array = explode('&amp;', $raw_post_data);
  $myPost = array();
  foreach ($raw_post_array as $keyval) {
   $keyval = explode ('=', $keyval);
   if (count($keyval) == 2)
    $myPost[$keyval[0]] = rawurldecode($keyval[1]);
  }
  // read the post from PayPal system and add 'cmd'
  $req = 'cmd=_notify-validate';
  if(function_exists('get_magic_quotes_gpc')) {
   $get_magic_quotes_exists = true;
  }
  foreach ($_POST as $key =&gt; $value) {
   $value = rawurlencode(stripslashes($value));
   $value = preg_replace('/(.*[^%^0^D])(%0A)(.*)/i','${1}%0D%0A${3}',$value);// IPN fix
   $req .= "&amp;$key=$value";
  }
  
  // Post IPN data back to PayPal to validate the IPN data is genuine
  // Without this step anyone can fake IPN data
  if(USE_SANDBOX == true) {
   $paypal_url = "https://www.sandbox.paypal.com/cgi-bin/webscr";
  } else {
   $paypal_url = "https://www.paypal.com/cgi-bin/webscr";
  }
  $ch = curl_init($paypal_url);
  if ($ch == FALSE) {
   return FALSE;
  }
  curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
  curl_setopt($ch, CURLOPT_POST, 1);
  curl_setopt($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);
  if(DEBUG == true) {
   curl_setopt($ch, CURLOPT_HEADER, 1);
   curl_setopt($ch, CURLINFO_HEADER_OUT, 1);
  }
  // CONFIG: Optional proxy configuration
  //curl_setopt($ch, CURLOPT_PROXY, $proxy);
  //curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
  // Set TCP timeout to 30 seconds
  curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: Close'));
  // CONFIG: Please download 'cacert.pem' from "http://curl.haxx.se/docs/caextract.html" and set the directory path
  // of the certificate as shown below. Ensure the file is readable by the webserver.
  // This is mandatory for some environments.
  
  curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . '/cacert.pem');
  
  $res = curl_exec($ch);
  if (curl_errno($ch) != 0) // cURL error
   {
   if(DEBUG == true) { 
    error_log(date('[Y-m-d H:i e] '). "Can't connect to PayPal to validate IPN message: " . curl_error($ch) . PHP_EOL, 3, LOG_FILE);
   }
   curl_close($ch);
   exit;
  } else {
    // Log the entire HTTP response if debug is switched on.
    if(DEBUG == true) {
     error_log(date('[Y-m-d H:i e] '). "HTTP request of validation request:". curl_getinfo($ch, CURLINFO_HEADER_OUT) ." for IPN payload: $req" . PHP_EOL, 3, LOG_FILE);
     error_log(date('[Y-m-d H:i e] '). "HTTP response of validation request: $res" . PHP_EOL, 3, LOG_FILE);
    }
    curl_close($ch);
  }
  // Inspect IPN validation result and act accordingly
  // Split response headers and payload, a better way for strcmp
  $tokens = explode("\r\n\r\n", trim($res));
  $res = trim(end($tokens));
  if (strcmp ($res, "VERIFIED") == 0) {
   // check whether the payment_status is Completed
   // check that txn_id has not been previously processed
   // check that receiver_email is your PayPal email
   // check that payment_amount/payment_currency are correct
   // process payment and mark item as paid.
   // assign posted variables to local variables
   //$item_name = $_POST['item_name'];
   //$item_number = $_POST['item_number'];
   //$payment_status = $_POST['payment_status'];
   //$payment_amount = $_POST['mc_gross'];
   //$payment_currency = $_POST['mc_currency'];
   //$txn_id = $_POST['txn_id'];
   //$receiver_email = $_POST['receiver_email'];
   //$payer_email = $_POST['payer_email'];
   
   if(DEBUG == true) {
    error_log(date('[Y-m-d H:i e] '). "Verified IPN: $req ". PHP_EOL, 3, LOG_FILE);
   }
   echo "ok";
  } else if (strcmp ($res, "INVALID") == 0) {
   // log for manual investigation
   // Add business logic here which deals with invalid IPN messages
   if(DEBUG == true) {
    error_log(date('[Y-m-d H:i e] '). "Invalid IPN: $req" . PHP_EOL, 3, LOG_FILE);
   }
   echo "nein";
  } 
  ?&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>and this is my form:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;head&gt;
   &lt;meta charset="utf-8"&gt;
   &lt;meta http-equiv="X-UA-Compatible" content="IE=edge"&gt;
   &lt;meta name="viewport" content="width=device-width, initial-scale=1"&gt;
   &lt;title&gt;Paypal Integration Test&lt;/title&gt;
  &lt;/head&gt;
  &lt;body&gt;
  &lt;form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top"&gt;
  &lt;input type="hidden" name="cmd" value="_s-xclick"&gt;
  &lt;input type="hidden" name="hosted_button_id" value="TPHX8DJDCSX88"&gt;
  &lt;table&gt;
  &lt;tr&gt;&lt;td&gt;&lt;input type="hidden" name="on0" value="Gutschein"&gt;Gutschein&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td&gt;&lt;select name="os0"&gt;
   &lt;option value="Option1"&gt;Option1 €0,01 EUR&lt;/option&gt;
   &lt;option value="Option2"&gt;Option2 €0,02 EUR&lt;/option&gt;
   &lt;option value="Option3"&gt;Option3 €0,03 EUR&lt;/option&gt;
   &lt;option value="Option4"&gt;Option4 €0,04 EUR&lt;/option&gt;
  &lt;/select&gt; &lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
  &lt;input type="hidden" name="currency_code" value="EUR"&gt;
  &lt;input type="image" src="https://www.paypalobjects.com/de_DE/DE/i/btn/btn_buynow_SM.gif" border="0" name="submit" alt="Jetzt einfach, schnell und sicher online bezahlen – mit PayPal."&gt;
  &lt;img alt="" border="0" src="https://www.paypalobjects.com/de_DE/i/scr/pixel.gif" width="1" height="1"&gt;
  &lt;/form&gt;
  
  
  &lt;/body&gt;
  &lt;/html&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>and the url: test.mohamadomeirat.de</p>
  
  <p>what am I doing wrong?</p>