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 |
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| 9 | class CategoryController |
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| 10 | { |
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| 11 | public function index(Request $request) |
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| 17 | |||
| 18 | public function create(Request $request) |
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| 22 | |||
| 23 | public function store(Request $request) |
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| 33 | |||
| 34 | View Code Duplication | public function show(Category $category) |
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| 41 | |||
| 42 | public function edit(Category $category) |
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| 46 | |||
| 47 | View Code Duplication | public function update(Request $request, Category $category) |
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| 57 | |||
| 58 | public function destroy(Category $category) |
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| 64 | } |
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| 65 |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.