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Coping with type invariance in PHP

Door: Thijs Zumbrink
Eergisteren, 16:40

In this article I will discuss one of the problems you may run into when depending on PHP's relatively young type system. This problem is type invariance: the inability to change a method's signature when implementing an interface: it must exactly match including the type hints, which is too restrictive for optimal use. In the second half of the article, I give an example based on code in a real library.

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