return $this->registration_form(); } } } $Engine = new Engine(); switch (@$_GET['mod']) { case 'registration': echo $Engine->registration_form(); break; case 'registration_post': echo $Engine->registration_post(); break; case 'authorization': echo $Engine->authorization_form(); break; case 'authorization_post': echo $Engine->authorization_post(); break; case 'info': echo $Engine->info(); break; case 'lang': echo $Engine->lang(); break; case 'exit': echo $Engine->exits(); break; default: echo $Engine->index(); break; }