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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10 | View Code Duplication | abstract class AbstractServiceConfig implements ConfigInterface |
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11 | { |
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12 | protected $config = []; |
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14 | 21 | public function __construct(array $config) |
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20 | 21 | protected function validateConfig($config) |
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35 | 3 | public function getType(): string |
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40 | 6 | public function getOptions() |
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44 | } |
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