<?php $arr1 = [1,2,3,4]; $arr2 = [5,2,4,1]; $arr3 = [2,1,2,2]; $all = [$arr1, $arr2, $arr3]; foreach($all[0] as $key => $v){ $result[$key] = array_sum(array_column($all, $key)); } var_dump($result);
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