<?php  

$validation = new \stdClass();
$validation->result = "error";
$validation->msg = "error in google recaptcha";

if(isset($_POST['g-recaptcha-response']) && !empty($_POST['g-recaptcha-response'])) {
  // '6LeIxAcTAAAAAGG-vFI1TnRWxMZNFuojJ4WifJWe'; //for testing locally
  // '6LdEITsdAAAAAFSjnHtfnGO9HD46izx31k4-_UFY'; //for production
  $secret = '6LdEITsdAAAAAFSjnHtfnGO9HD46izx31k4-_UFY';
  $verifyResponse = file_get_contents('https://www.google.com/recaptcha/api/siteverify?secret='.$secret.'&response='.$_POST['g-recaptcha-response']);
  $responseData = json_decode($verifyResponse);
  
  if($responseData->success) {
    $form_data = array();

    foreach ($_POST as $label => $value) {
      if($label == "g-recaptcha-response") {
        continue;
      }
      $form_data[$label] = $value;
    }    
      $validation->result = "success";
      $validation->msg = "google recaptcha check passed";
      echo json_encode($validation);

  } else { // g-recaptcha response error
    $validation->result = "error";
    $validation->msg = $responseData;
    echo json_encode($validation);
  }
} else { // 'g-recaptcha-response' empty or not set
  $validation->msg = "error";
  echo json_encode($validation);
}
?>