title: Google ReCaptcha not posting 'g-recaptcha-response'
body: <p>This question has been asked before: <a href="https://stackoverflow.com/questions/27683888/new-google-recaptcha-not-posting-receiving-g-recaptcha-response">New Google ReCaptcha not posting/receiving &#39;g-recaptcha-response&#39;</a> - but there was no proper answer.</p>
  
  <p>I have the exact same set up as him, but the code fails here:</p>
  
  <pre><code>if(!$captcha){
     exit;
  }
  </code></pre>
  
  <p>so <code>$captcha=$_POST['g-recaptcha-response']</code> seems to be empty. </p>
  
  <p><a href="https://stackoverflow.com/questions/27274157/new-google-recaptcha-with-checkbox-server-side-php">new google recaptcha with checkbox server side php</a> = The 2nd answer here also doesn't seem to work.</p>
  
  <p>Does anyone know why this could happen?</p>