Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
1 | <?php |
||
2 | class GateController extends LoginController |
||
3 | { |
||
4 | public function actionIndex() |
||
25 | |||
26 | public function actionCookie() |
||
30 | |||
31 | public function actionLogout() |
||
36 | |||
37 | public function actionForum() |
||
42 | |||
43 | public function actionBank() |
||
48 | |||
49 | View Code Duplication | protected function beforeAction($action) |
|
57 | } |
||
58 |
Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: