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<?php $a = 'a'; $b = 'b'; $testClosure = function($var) use ($a, $b) { echo $var . ' ' . $a . ' ' . $b; }; var_dump($testClosure);
Output for git.master, git.master_jit, rfc.property-hooks
object(Closure)#1 (2) { ["static"]=> array(2) { ["a"]=> string(1) "a" ["b"]=> string(1) "b" } ["parameter"]=> array(1) { ["$var"]=> string(10) "<required>" } }

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