title: How to get cache-control max-age value from cUrl in PHP?
body: <p>How to get cache-control: max-age value from cURL in PHP?</p>
  
  <p>I have:</p>
  
  <pre><code>$this-&gt;get_headers_from_curl_response(curl_exec($this-&gt;curl));
  </code></pre>
  
  <p>Is there a parameter to cURL that would return only <code>max-age</code> value?</p>