1 | <?php |
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20 | final class KeySet extends ArraySource |
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21 | { |
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22 | /** |
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23 | * {@inheritdoc} |
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24 | */ |
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25 | protected function name(): string |
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29 | |||
30 | /** |
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31 | * {@inheritdoc} |
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32 | */ |
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33 | protected function continueConfiguration(NodeDefinition $node) |
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43 | |||
44 | public function prepend(array $bundleConfig, string $path, ContainerBuilder $container) |
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55 | } |
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56 |
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the parent class: