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 League\Fractal\Test\Stub\Transformer; |
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| 5 | class JsonApiBookTransformer extends TransformerAbstract |
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| 6 | { |
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| 7 | protected $availableIncludes = [ |
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| 8 | 'author', |
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| 9 | 'co-author', |
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| 10 | ]; |
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| 11 | |||
| 12 | public function transform(array $book) |
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| 20 | |||
| 21 | View Code Duplication | public function includeAuthor(array $book) |
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| 33 | |||
| 34 | View Code Duplication | public function includeCoAuthor(array $book) |
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| 46 | } |
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| 47 |