1 | <?php |
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20 | class PurchaseResponse extends AbstractResponse implements RedirectResponseInterface |
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21 | 1 | { |
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22 | public function isSuccessful() |
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26 | 1 | ||
27 | public function isRedirect() |
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31 | 1 | ||
32 | public function getRedirectUrl() |
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36 | 1 | ||
37 | public function getRedirectMethod() |
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41 | 1 | ||
42 | public function getRedirectData() |
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46 | } |
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47 |
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: