1 | <?php |
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10 | class DeeplTranslator implements TranslatorInterface |
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11 | { |
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12 | protected $translator; |
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13 | protected $source; |
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14 | protected $target; |
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15 | |||
16 | public function __construct() |
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20 | |||
21 | public function setSource(string $source) |
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27 | |||
28 | public function setTarget(string $target) |
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34 | |||
35 | public function translate(string $string) : string |
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53 | } |
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54 |
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 implementation 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 interface: