Capture curl stderr and print stdout in php

I'm using curl & php and something's not working.

How can I capture STDERR and print it to STDOUT in php when running through a开发者_如何学C web server?

Thanks

---

if (curl_errno($ch)) { echo curl_error($ch); }

---

TRY with

curl_setopt($curl,CURLOPT_FAILONERROR,FALSE); and print the error
$result = curl_exec($curl); by print_r($result);