3v4l.org

run code in 150+ php & hhvm versions
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<?php $sort_sku = array("rate" => array("origin" => array(), "items" => array('1'),)); print_r($sort_sku);
based on X3pd7
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
Array ( [rate] => Array ( [origin] => Array ( ) [items] => Array ( [0] => 1 ) ) )