将所有预定义的PHP类导入我的命名空间

Question

namespace externalServices\Service;
class FirstService  extends Exception {



}

now Exception is not defined. I know I can do use \Exception AS Exception; But how can I import all native classes to the namespace

Answer 1

Can't be done.

The solution is to either manually import...

use Exception; //Notice leading \ is not needed

Or use an absolute path...

class FirstService extends \Exception {