Guzzle Curl Error 60 SSL unable to get local issuer

Question

Trying to use the YouTube API v3 to get some video(s) information, using Guzzle in Symfony2 using Service Descriptors.

When I run the script, I get this:

Answer 1

Guzzle 6
  $response = $client->request('POST', $url, [
                                                'verify' => false,
                                                 'body'=>json_encode($postData)
                                            ]);


                    $body = $response->getBody()->getContents();