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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5 | View Code Duplication | class Module |
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6 | { |
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8 | public function registerAutoloaders() |
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13 | public function registerServices($di) |
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27 | } |