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@ 2016-11-07T00:17:20Z

<?php

$r = new ReflectionFunction(function (?int $a): ?int {});
var_dump((string) $r->getParameters()[0]->getType());
var_dump((string) $r->getReturnType());

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

25.66 ms | 405 KiB | 5 Q