(PECL pecl_http >= 0.10.0)
HttpRequest::setPostFields — Set post fields
$post_data
   )Set the POST data entries, overwriting previously set POST data.
Affects only POST and custom requests.
post_dataan associative array containing the post fields; if empty, the post data will be unset
   Restituisce TRUE in caso di successo, FALSE in caso di fallimento.