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@ 2021-08-15T04:10:13Z

<?php

class A {}

function test(): A|null {}

$r = (new ReflectionFunction('test'))
    ->getReturnType();

var_dump($r::class);
var_dump($r->allowsNull());

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

65.91 ms | 404 KiB | 5 Q