Just a nota bene for the noobs (like yours truly):
Although the extension has no "configuration directives" in php.ini, there is a curl extension that must be enabled or uncommented in php.ini
The behaviour of these functions is affected by settings in php.ini.
|curl.cainfo||NULL||PHP_INI_SYSTEM||Available since PHP 5.3.7.|
Here's a short explanation of the configuration directives.
A default value for the
CURLOPT_CAINFO option. This
is required to be an absolute path.