| 1 | <?php |
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| 27 | class InspectType extends SessionAwareCommand |
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| 28 | { |
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| 29 | /** |
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| 30 | * configure |
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| 31 | * |
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| 32 | * @see command |
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| 33 | */ |
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| 34 | protected function configure() |
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| 43 | |||
| 44 | /** |
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| 45 | * execute |
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| 46 | * |
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| 47 | * Set pomm dependent variables. |
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| 48 | * |
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| 49 | * @see Command |
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| 50 | */ |
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| 51 | protected function execute(InputInterface $input, OutputInterface $output) |
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| 68 | } |
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| 69 |
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: