3v4l.org

run code in 300+ PHP versions simultaneously
<?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);
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array(8) { [0]=> int(13) [1]=> int(9) [2]=> int(16) [3]=> int(11) [4]=> int(11) [5]=> int(1) [6]=> int(3) [7]=> int(2) }
preferences:
231.41 ms | 408 KiB | 5 Q