How to get response from secure site (https) using curl in php?

Question

Hi,

i have used below code for reading the response from HTTTPS secured site using curl but it shows an error like 'Page can't be displayed"

curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, true);
curl_setopt($ch, CURLOPT_URL, $gatewayURI);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_POST, 1);
curl_setopt ($curl_ch, CURLOPT_CAINFO, dirname(__FILE__)."/tempcert.pem");

any help??