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<?php function foo($x) { var_dump($x); return $x('gehr') === 'true'; } $v = foo(function($p){return true;}); var_dump($v);
Output for git.master, git.master_jit, rfc.property-hooks
object(Closure)#1 (1) { ["parameter"]=> array(1) { ["$p"]=> string(10) "<required>" } } bool(false)

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