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<?php declare(strict_types=1); namespace funcs { function int(int ...$ints) {} } namespace { function sum(array $ints): int { (\funcs\int)(...$ints); return array_sum($ints); } var_dump(sum([1, 2, 3])); var_dump(sum([1, 2, "three"])); }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant "funcs\int" in /in/8YoZN:13 Stack trace: #0 /in/8YoZN(18): sum(Array) #1 {main} thrown in /in/8YoZN on line 13
Process exited with code 255.

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