Online PHP editor | refs for lIVGo

<?php $arr1 = [1,2,3,4,5]; $arr2 = [5,2,4,1]; $arr3 = [2,1,2,2]; $arr4 = [2,1,2,2]; $arr5 = [2,1,2,2,6,1,3,2]; $arr6 = [1,2,3]; $all = []; $i=1; $count = Null; while(isset(${"arr" . $i})){ $all[] = ${"arr" . $i}; if(count(${"arr" . $i}) > $count){ $count = count(${"arr" . $i}); $longkey = $i-1; } $i++; } foreach($all[$longkey] as $key => $v){ $result[$key] = array_sum(array_column($all, $key)); } var_dump($result);