title: PayPal cURL Cert error setting certificate verify location
body: <p>So I've been sitting here for about six hours straight trying to figure out why my PHP sample code isn't working. Everything works up until the point where I have to verify over cURL with PayPal. Below you can see my code and my error. I have been trying various methods about read/write permissions, PHP 5.3.7 or greater, php.ini modifying versus modifying my php script. I am completely out of ideas, any help would be greatly appreciated.</p>
  
  <p>PHP:</p>
  
  <pre><code>&lt;?php
  
  // STEP 1: read POST data
  
  // Reading POSTed data directly from $_POST causes serialization issues with array data in the POST.
  // Instead, read raw POST data from the input stream. 
  $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]] = urldecode($keyval[1]);
  }
  // read the IPN message sent from PayPal and prepend 'cmd=_notify-validate'
  $req = 'cmd=_notify-validate';
  if(function_exists('get_magic_quotes_gpc')) {
     $get_magic_quotes_exists = true;
  } 
  foreach ($myPost as $key =&gt; $value) {        
     if($get_magic_quotes_exists == true &amp;&amp; get_magic_quotes_gpc() == 1) { 
          $value = urlencode(stripslashes($value)); 
     } else {
          $value = urlencode($value);
     }
     $req .= "&amp;$key=$value";
  }
  $myfile = fopen("testfile.txt", "w");
  fwrite($myfile,$req);
  
  
  // Step 2: POST IPN data back to PayPal to validate
  
  $ch = curl_init('https://sandbox.paypal.com/cgi-bin/webscr');
  curl_setopt($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);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: Close'));
  
  // In wamp-like environments that do not come bundled with root authority certificates,
  // please download 'cacert.pem' from "http://curl.haxx.se/docs/caextract.html" and set 
  // the directory path of the certificate as shown below:
  curl_setopt($ch, CURLOPT_CAPATH,'C:\Users\Administrator\Desktop\ca-bundle.crt');
  //curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, TRUE);
  if( !($res = curl_exec($ch)) ) {
      fwrite($myfile, "Got " . curl_error($ch) . " when processing IPN data");
      curl_close($ch);
      exit;
  }
  curl_close($ch);
  
  frwite($myfile,$res);
  
  // inspect IPN validation result and act accordingly
  
  if (strcmp ($res, "VERIFIED") == 0) {
      // The IPN is verified, process it
  } else if (strcmp ($res, "INVALID") == 0) {
      // IPN invalid, log for manual investigation
  }
  
  // inspect IPN validation result and act accordingly
  
  if (strcmp ($res, "VERIFIED") == 0) {
      // The IPN is verified, process it:
      // check whether the payment_status is Completed
      // check that txn_id has not been previously processed
      // check that receiver_email is your Primary PayPal email
      // check that payment_amount/payment_currency are correct
      // process the notification
  
      // assign posted variables to local variables
      fwrite($myfile,"verified");
      $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'];
  
      // IPN message values depend upon the type of notification sent.
      // To loop through the &amp;_POST array and print the NV pairs to the screen:
      foreach($_POST as $key =&gt; $value) {
        echo $key." = ". $value."&lt;br&gt;";
      }
  } else if (strcmp ($res, "INVALID") == 0) {
      // IPN invalid, log for manual investigation
      echo "The response from IPN was: &lt;b&gt;" .$res ."&lt;/b&gt;";
  }
  
  ?&gt;
  </code></pre>
  
  <p>Error:</p>
  
  <pre><code>Got error setting certificate verify location: CAFile:'C:\Users\Administrator\Desktop\ca-bundle.crt' CAPath:none when processing IPN data
  </code></pre>