1 | <?php |
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14 | final class I18nResponseErrorFormatter |
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15 | { |
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16 | /** |
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17 | * @var string |
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18 | */ |
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19 | private $dictionary; |
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20 | |||
21 | /** |
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22 | * I18nResponseErrorFormatter constructor. |
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23 | * @param string $dictionary |
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24 | */ |
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25 | public function __construct(string $dictionary = 'hipanel') |
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29 | |||
30 | /** |
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31 | * @inheritDoc |
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32 | */ |
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33 | public function __invoke(Exception $exception): string |
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44 | } |
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45 |
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: