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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| 15 | View Code Duplication | class rc6 extends \phpbb\db\migration\migration |
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| 16 | { |
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| 17 | static public function depends_on() |
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| 22 | public function effectively_installed() |
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| 27 | public function update_data() |
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| 35 | public function update_schema() |
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| 46 | public function revert_schema() |
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| 56 | } |
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