title: Will PHP's CURL ever reuse connection for curl requests of different handles?
body: <ul>
  <li>the discussing requests assumed to connect to same target host</li>
  <li>"handles" -> I meant the return from curl_init()</li>
  <li>Even document from the CURLOPT_FORBID_REUSE option doesn't mention whether if not set that option, a connection reuse can happen across different curl handle or not.</li>
  </ul>
  
  <p>I googled quite a lot, even CURL's official FAQ, but cannot find explicit answer.</p>
  
  <p>Remark: related to question <a href="https://stackoverflow.com/questions/3787002/reusing-the-same-curl-handle-big-performance-increase/4736881#comment48516613_4736881">Reusing the same curl handle. Big performance increase?</a>, but the accepted answer didn't answer it explicitly, and no official reference.</p>