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<?php class C { static function f() { $php = ' $c = new class () { const U = 21; function f() { return #[A(self::U)] static function () {}; } }; return $c->f(); '; return eval($php); } } $rf = new \ReflectionFunction(C::f()); $ra = $rf->getAttributes()[0]; print $ra->getArguments()[0];
Output for git.master, git.master_jit, rfc.property-hooks
21

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