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<?php $arr = array('one' => 1); print_r($arr); var_dump($arr); ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [one] => 1 ) array(1) { ["one"]=> int(1) }