title: send response HTTP 200 SUCCESS in php
body: <p>I need to send an HTTP 200 response to the string 'SUCCESS', but my php server version is 5.2.17!</p>
  
  <p>In my case, the webhook sends data to the capture to a file called notification.php, I read the contentes, save in the database and need to send a response but do not know how to do this!</p>
  
  <p>Does anyone know how to do this in php 5.2.17?</p>
  
  <p>I tried the following ways without success:</p>
  
  <pre><code>// error 1
  header("Content-Type: text/plain");
  echo "SUCCESS";
  
  // error 2
  $httpStatusCode = 200;
  $httpStatusMsg  = 'SUCCESS';
  $protocol = isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0';
  header($protocol.' '.$httpStatusCode.' '.$httpStatusMsg);
  
  // error 3
  header("200 SUCCESS");
  return "200 SUCCESS";
  
  // error 4
  header('Content-Type: application/json');
  echo 'SUCCESS';
  
  // error 5
  header('Content-Type: application/json');
  return 'SUCCESS';
  
  //error 6
  header('Content-Type: application/json');
  header('SUCCESS');
  
  ///error 7
  header('Content-Type: application/json');
  $success =json_encode('SUCCESS');
  header($success);
  
  
  ///error 8
  header("HTTP/1.1 200 SUCCESS");
  header("Content-Type:application/json; charset=utf-8");
  
  ///error 9
  header("HTTP/1.1 200");
  header("Content-Type:application/json; charset=utf-8");
  result 'SUCCESS';
  
  //error 10
  header("Content-Type:application/json;");
  header('HTTP/1.0 200 SUCCESS');
  
  // error 11
  $code = 200;
  $text = 'OK';
  $protocol = (isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0');
  header($protocol . ' ' . $code . ' ' . $text);
  $GLOBALS['http_response_code'] = $code;
  echo 'SUCCESS';
  </code></pre>
  
  <p>My PhpCode</p>
  
  <pre><code>&lt;?php
   $src_data = $_REQUEST["data"];           
   $une_data = stripslashes($src_data);
   $data = json_decode($une_data);
  
   //get payment data
   $id_cob  = $data-&gt;payment-&gt;id;
   $id_cus  = $data-&gt;payment-&gt;customer;
   $status  = $data-&gt;payment-&gt;status;
   $dtsts   = date("Y-m-d");
  
   if ($data-&gt;event == 'PAYMENT_RECEIVED') {
  // post client
  include('dbconnection.php');
  $qryn  = "UPDATE PAYMENTS SET STATUS='$status', DATASTATUS='$dtsts' WHERE ID_COB_ASAAS='$id_cob' AND ID_CLI_ASAAS='$id_cus'";
      mysql_query($qryn,$cnx);
   } 
  
  // webhook return
  // my solution was:
  header('HTTP/1.1 200 OK');
  echo 'SUCCESS';
  return;
  
  ?&gt;
  </code></pre>