opentok/Opentok-PHP-SDK — pull request #9 by phoenixcw (2013-03-10 08:13:32+00:00)
Title: Better Encapsulation

1. set the default key and secret as null;
2. set the default parameters of the construct function of OpenTokSDK as the const values of API_Config;
3. remove the reduplicate class OpenTokConstants.