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@ 2014-10-15T19:02:24Z

<?php

namespace X;

$f = function () {};

$r = new \ReflectionMethod($f, '__invoke');
var_dump($r->isClosure());
var_dump($r->getDeclaringClass()->getShortName());

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive preview

44.46 ms | 402 KiB | 5 Q