curl returning 301 error after migrating to https
You need to follow the redirect using the CURLOPT_FOLLOWLOCATION option:
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);From the documentation:
TRUE to follow any "Location: " header that the server sends as part of the HTTP header (note this is recursive, PHP will follow as many "Location: " headers that it is sent, unless CURLOPT_MAXREDIRS is set).
Or you can simply use https:// in your code to avoid the redirect.