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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| 16 | View Code Duplication | class InvalidCollectionIdentifierException extends OutOfBoundsException |
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| 17 | { |
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| 18 | |||
| 19 | /** |
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| 20 | * InvalidCollectionIdentifierException constructor. |
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| 21 | * |
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| 22 | * @param $identifier |
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| 23 | * @param string $message |
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| 24 | * @param int $code |
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| 25 | * @param Exception|null $previous |
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| 26 | */ |
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| 27 | public function __construct($identifier, $message = '', $code = 0, Exception $previous = null) |
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| 41 | } |
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| 42 |