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<?php $a = array('a' => true,'b' => false, 'c' => false); $b = array('a' => false,'b' => true, 'c' => false); var_dump(array_intersect_key($a, $b)) ?>
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { ["a"]=> bool(true) ["b"]=> bool(false) ["c"]=> bool(false) }

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