Online PHP editor | refs for TJYhq

<?php $fruitpacks = [ ['apples', 3], ['pears', 1], ['apples', 6], ['grapes', 22], ]; abstract class Tools { public static function integerAppend(&$maybeDefined, int $value) { $maybeDefined = ($maybeDefined ?? 0) + $value; } } $totals_by_name = []; foreach ($fruitpacks as [$name, $amount]) { Tools::integerAppend($totals_by_name[$name], $amount); } var_dump($totals_by_name);