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:
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7 | View Code Duplication | final class DateTimeHelper implements DateTimeHelperInterface |
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8 | { |
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9 | /** |
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10 | * @inheritdoc} |
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11 | */ |
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12 | public function getDate(int $day, int $months = 0): \DateTimeInterface |
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23 | /** |
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24 | * @inheritdoc} |
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25 | */ |
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26 | public function getFormattedDate(int $day, int $months = 0, $format = 'Y-m-d'): string |
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31 | /** |
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32 | * @inheritdoc} |
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33 | */ |
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34 | public function getCurrentDate(): \DateTimeInterface |
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38 | } |
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