Online PHP editor | refs for EhNQU

<?php function mod(&$item){ $item["position"] = preg_replace("/[^0-9]+/","",$item["position"]); $item["count"] = 2*$item["count"]; } $items = [ ["position" => "1", "count" => 4], ["position" => "2", "count" => 3], ]; echo "before: \n"; foreach($items as $item){ var_dump($item) . "\n"; } echo "modifying items...\n"; foreach($items as &$itemRef){ mod($itemRef); } echo "after: \n"; foreach($items as $item){ echo "A"; var_dump($item) . "\n"; }