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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| 12 | class SectionEventSubscriber extends AbstractSearchEventSubscriber implements EventSubscriberInterface  | 
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| 13 | { | 
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| 14 | public static function getSubscribedEvents(): array  | 
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| 20 | |||
| 21 | View Code Duplication | public function onAssignSection(AssignSectionEvent $event)  | 
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| 28 | }  | 
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| 29 |