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<?php $values = ["hallo", "bye", "wie gehts", "foo", "bar"]; $keys = [1, 3]; var_dump(array_uintersect(array_flip($keys), $values));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: array_uintersect(): Argument #2 must be a valid callback, array callback must have exactly two members in /in/o1Yaq:6 Stack trace: #0 /in/o1Yaq(6): array_uintersect(Array, Array) #1 {main} thrown in /in/o1Yaq on line 6
Process exited with code 255.

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