1 | <?php declare(strict_types=1); |
||
10 | class Build extends BaseBuild |
||
11 | { |
||
12 | /** |
||
13 | * @return array |
||
14 | */ |
||
15 | public function jobs(): array |
||
25 | |||
26 | /** |
||
27 | * @param int $id |
||
28 | * @return Job |
||
29 | */ |
||
30 | public function job(int $id): Job |
||
40 | |||
41 | /** |
||
42 | * @return Build |
||
43 | */ |
||
44 | public function refresh() : Build |
||
54 | } |
||
55 |
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: