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 ExportStateTrait { |
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9 | |||
10 | protected $export_form = 'Distilleries\Expendable\Http\Forms\Export\ExportForm'; |
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11 | // ------------------------------------------------------------------------------------------------ |
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12 | // ------------------------------------------------------------------------------------------------ |
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13 | // ------------------------------------------------------------------------------------------------ |
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14 | |||
15 | 2 | View Code Duplication | public function getExport() |
35 | |||
36 | // ------------------------------------------------------------------------------------------------ |
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37 | |||
38 | 10 | public function postExport(Request $request) |
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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: