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; |
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| 8 | trait ImportStateTrait { |
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| 9 | |||
| 10 | protected $import_form = 'Distilleries\Expendable\Http\Forms\Import\ImportForm'; |
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| 11 | |||
| 12 | // ------------------------------------------------------------------------------------------------ |
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| 13 | // ------------------------------------------------------------------------------------------------ |
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| 14 | // ------------------------------------------------------------------------------------------------ |
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| 15 | |||
| 16 | 2 | View Code Duplication | public function getImport() |
| 36 | |||
| 37 | // ------------------------------------------------------------------------------------------------ |
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| 38 | |||
| 39 | 6 | public function postImport(Request $request) |
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| 66 | } |
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: