After the user on domain1 clicks a link to domain 2, I need to send also the user-data (username,email,..) from server1/domain1 to server2/domain2 and to save it temporary in the server2/database.

Both are wordpress websites.


Lets say, $url = 'http://my-domain2.com'; So far I found out, that cURL can do this job:

function curlTest($url, $fields){


      $ch = curl_init($url);

      if (!$ch)
        throw new Exception('Failed to initialize');

      curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PUT');
      curl_setopt($ch, CURLOPT_CONNECTTIMEOUT , 10);
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
      curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Length: ' . strlen($fields)));
      curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
      $response = curl_exec($ch);

      $status = curl_getinfo($ch, CURLINFO_HTTP_CODE);

      if (!$response)
        throw new Exception(curl_error($ch), curl_errno($ch));

      curl_close( $ch );
      return (int) $status; //status 200 = success

      } catch(Exception $e) {

              'Curl failed with error #%d: %s',
              $e->getCode(), $e->getMessage()),


or objective orientated like descriped here.

Later I found a wordpress solution like this:

 $response = wp_remote_post( &url, array( 'data' => $fields) );

explained here.

The cURL call seems to be successfully, but I have no idea how to fetch the data on the other server. So far I put the user-data on server1 in an array ($fields) and using POST to send it to server2. But how can I fetch the data on server2?

According to the example of Ed Cradock below the offical documentation it seems to be possible to grap the request on the other side with this code:

       parse_str(file_get_contents('php://input'), $requestData); 


       // Save requested Data to database here

But it doesn't work for me because I guess the URL is wrong: http://my-domain2.com/<whats-here?>


How to fetch the Data of a POST cURL request with wordpress in a secure way?

  • How is your question connected with WordPress? And, please, ask one question at a time.
    – Max Yudin
    Commented Feb 7, 2018 at 17:12
  • Ok, I made one question. And I do not know the wordpress way of cURL
    – murcoder
    Commented Feb 7, 2018 at 17:35
  • Is there a particular reason you're using curl directly instead of the WP HTTP APIs?
    – Tom J Nowell
    Commented Feb 7, 2018 at 17:44

2 Answers 2


wp_remote_get() and wp_remote_post() and wp_remote_request() should answer on your questions.This is best practice for WordPress.


wp_remote_post, which is better to use than calling curl directly, is sending a POST request to the other side, which means you can just fetch it with the $_POST global. There is no reason or need to use PUT requests for what you are doing.

  • Thanks! I researched already a lot, but I can't find an example, of how to fetch the data on the other server. How can I listen on server2 for data from server1? I guess i have to wrtie my own api? Is there some documentation? Simple if($_POST['username']){ //dosomething} will not work i guess
    – murcoder
    Commented Feb 8, 2018 at 17:10

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