gocardless/gocardless-php — pull request #37 by danelowe (2014-05-08 02:24:39+00:00)
Title: Always add CURLOPT_POSTFIELDS for a POST request

PHP seemed to be adding header

``Content-Length: -1

If a POST request has no CURLOPT_POSTFIELDS defined, causing a 400 Bad Request from GoCardless.