I try to get a list of activities from a specific public page on Google Plus (bbc news for example) but i keep getting the error "(403) Access Not Configured. Please use Google Developers Console to activate the API for your project."
$client = new Google_Client();
$client->setDeveloperKey("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
$plus = new Google_PlusService($client);
$activities = $plus->activities->listActivities("104446814635449965626", "public");