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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16 | View Code Duplication | class IsNumericString extends AbstractUnaryFunction |
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17 | { |
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18 | /** |
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19 | * @param mixed $input |
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20 | * |
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21 | * @return bool |
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22 | */ |
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23 | 56 | public function __invoke($input) |
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31 | } |
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