I have a page that takes a string input from the user and uses it as a query string for a number of search APIs. My problem is that I have the Google+ API working ok on it's own. I can also get the YouTube Data API working on it's own. However when I put my code together on the same page both break. I've narrowed the problem down to the fact that Google_PlusService.php can't handle it if I include() or require() any other .php files from the google-api-php-client/src/contrib/ directory.Google_YouTubeService.php copes fine if I include() or require() any other .php files. Google_PlusService.php cannot.Even if I don't use these other APIs, just include() or require(), it will still break.I am on the brink of insanity with this so any help would be very welcome.