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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8 | class RobotsController extends Controller |
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9 | { |
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10 | |||
11 | private $robotsFilePath; |
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13 | View Code Duplication | public function initialize() |
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20 | |||
21 | public function indexAction() |
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49 | } |
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50 |
If you access a property on an interface, you most likely code against a concrete implementation of the interface.
Available Fixes
Adding an additional type check:
Changing the type hint: