3v4l.org

run code in 300+ PHP versions simultaneously
<?php $map = array(array('-1'=>0, '-10'=>0, '-100'=>0), array(array('-1'=>0, '-10'=>0, '-100'=>0))); array_map(function($item){var_dump($item);if(is_array($item))ksort($item);}, $map); print_r($map);

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