<?php /** * @psalm-param class-string $class * @psalm-return \Generator<class-string> */ function classTypes(string $class): \Generator { yield $class; yield from class_parents($class); yield from class_implements($class); } interface I1 {} interface I2 {} abstract class A implements I1 {} final class B extends A implements I2 {} var_dump(iterator_to_array(classTypes(B::class), false));
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