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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| 8 | abstract class AbstractContextConfigurationFile extends AbstractAdapter |
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| 10 | 8 | View Code Duplication | protected function configureSchema(\DOMElement $element) |
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| 18 | 5 | public function getContexts() |
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| 29 | } |
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