Online PHP editor | refs for fDEbL

<?php $people = ["A" => [], "B" => [], "C" => [], "D" => [], "E" => []]; $deposit = 10; $fee =1; $people["A"]["sum"] = $deposit; for($i=1;$i<count($people)+1;$i++){ foreach(array_slice($people,0,$i) as $key => $p){ if(!isset($people[$key]["sum"])) $people[$key]["sum"] = $deposit-$fee; $people[$key]["sum"] += $fee/$i; } } var_dump($people);