cURL error 60: SSL certificate: unable to get local issuer certificate

Question

I use WAMP on a local development environment and am trying to charge a credit card but get the error message:

cURL error 60: SSL certificate problem:

Answer 1

As you are using Windows, I think your path separator is '\' (and '/' on Linux). Try using the constant DIRECTORY_SEPARATOR. Your code will be more portable.

Try:

curl_setopt($process, CURLOPT_CAINFO, dirname(__FILE__) . DIRECTORY_SEPARATOR . 'cacert.pem');

EDIT: and write the full path. I had some issues with relative paths (perhaps curl is executed from another base directory?)