Get errors from cURL functions

[denoteone]

I am trying to pull page data from a web server using SSL with cURL. The owner of the web server gave me their CA certificate. When I run the code below all I get is a blanks screen (no errors) Is there anyway I can show were the script is breaking down?

 

ini_set("display_errors","2");
ERROR_REPORTING(E_ALL);

$url = "https://www.clientswebserver.com/";

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 1);
curl_setopt($ch, CURLOPT_CAINFO, "/var/www/pathtoCAcert/curl-ca-bundle.crt");

$response = curl_exec($ch);
curl_close($ch);
print $response;

 

 

The original CA cert I got was not named curl-ca-bundle.crt  but I was told to rename it

[denoteone]

I am thinking I need to use CURLOPT_CAPATH  instead of CURLOPT_CAINFO  and then just put the cert in a directory.