1 | <?php |
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19 | trait Jsonable |
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20 | { |
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21 | /** |
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22 | * @return array |
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23 | */ |
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24 | public function jsonSerialize(): array |
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51 | |||
52 | /** |
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53 | * @return iterable|string[] |
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54 | */ |
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55 | private function jsonNonRenderableTypes(): iterable |
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60 | |||
61 | /** |
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62 | * @return iterable|string[] |
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63 | */ |
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64 | private function jsonNonRenderableFields(): iterable |
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80 | } |
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81 |
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idable
provides a methodequalsId
that in turn relies on the methodgetId()
. If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()
as an abstract method to the trait will make sure it is available.