3v4l.org

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<?php $map = array(array('-1'=>0, '-10'=>0, '-100'=>0), array(array('-1'=>0, '-10'=>0, '-100'=>0))); array_walk_recursive($map, function($item, $key, $whatever){var_dump($item, $key, $whatever);if(is_array($item))ksort($item);}); print_r($map);

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