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 namespace Distilleries\Expendable\States; |
||
| 8 | trait ExportStateTrait { |
||
| 9 | |||
| 10 | protected $export_form = 'Distilleries\Expendable\Http\Forms\Export\ExportForm'; |
||
| 11 | // ------------------------------------------------------------------------------------------------ |
||
| 12 | // ------------------------------------------------------------------------------------------------ |
||
| 13 | // ------------------------------------------------------------------------------------------------ |
||
| 14 | |||
| 15 | 2 | View Code Duplication | public function getExport() |
| 35 | |||
| 36 | // ------------------------------------------------------------------------------------------------ |
||
| 37 | |||
| 38 | 10 | public function postExport(Request $request) |
|
| 60 | } |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: