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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| 11 | class GenerateConfigCommand extends KunstmaanGenerateCommand |
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| 12 | { |
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| 13 | /** @var bool */ |
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| 14 | private $overwriteSecurity; |
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| 15 | |||
| 16 | /** @var bool */ |
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| 17 | private $overwriteLiipImagine; |
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| 18 | |||
| 19 | /** |
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| 20 | * @param string $rootDir |
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| 21 | */ |
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| 22 | public function __construct(string $projectDir) |
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| 28 | |||
| 29 | /** |
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| 30 | * @see Command |
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| 31 | */ |
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| 32 | protected function configure() |
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| 39 | |||
| 40 | /** |
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| 41 | * {@inheritdoc} |
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| 42 | */ |
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| 43 | protected function getWelcomeText() |
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| 47 | |||
| 48 | /** |
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| 49 | * {@inheritdoc} |
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| 50 | */ |
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| 51 | protected function doExecute() |
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| 59 | |||
| 60 | /** |
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| 61 | * {@inheritdoc} |
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| 62 | */ |
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| 63 | protected function doInteract() |
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| 77 | |||
| 78 | /** |
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| 79 | * @return ConfigGenerator |
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| 80 | */ |
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| 81 | View Code Duplication | protected function createGenerator() |
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| 88 | } |
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| 89 |
This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.
Consider the following example. The parameter
$italyis not defined by the methodfinale(...).The most likely cause is that the parameter was removed, but the annotation was not.