I installed the RingCentral PHP SDK.
I created the "ringout.php" file.
When executing it, it says "PHP Fatal error: Class 'RingCentralSDKSDK' not found...", which it isn't.
What am I missing?
$rcsdk = new RingCentralSDKSDK($RINGCENTRAL_CLIENTID, $RINGCENTRAL_CLIENTSECRET, $RINGCENTRAL_SERVER);