3) { // Maximum class file path depth in this project is 3. $classPath = \array_slice($classPath, 0, 3); } $filePath = \dirname(__FILE__) . '/src/' . \implode('/', $classPath) . '.php'; if (\file_exists($filePath)) { require_once $filePath; } } \spl_autoload_register('oauth2client_php_autoload');