1 | <?php |
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12 | class EasyEntityAdapter implements \ArrayAccess |
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13 | { |
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14 | /** |
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15 | * @var EntityInterface |
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16 | */ |
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17 | private $entity; |
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18 | |||
19 | /** |
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20 | * @var EntityWrapper |
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21 | */ |
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22 | private $entityWrapper; |
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23 | |||
24 | /** |
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25 | * @param EntityInterface $entity |
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26 | * @param EntityWrapper $entityWrapper |
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27 | */ |
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28 | public function __construct(EntityInterface $entity, EntityWrapper $entityWrapper) |
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33 | |||
34 | /** |
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35 | * @param $offset |
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36 | */ |
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37 | public function offsetExists($offset) |
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41 | |||
42 | /** |
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43 | * @param $offset |
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44 | */ |
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45 | public function offsetGet($offset) |
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66 | |||
67 | /** |
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68 | * @param $offset |
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69 | * @param $value |
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70 | */ |
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71 | public function offsetSet($offset, $value) |
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75 | |||
76 | /** |
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77 | * @param $offset |
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78 | */ |
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79 | public function offsetUnset($offset) |
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83 | } |
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84 |
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: