Just PHP FUN 117.

just_php_fun_117.md

Just PHP FUN 117.

• https://www.codewars.com/kata/526233aefd4764272800036f Matrix Addition.

Started at 20:51 01.10.2020 Thursday Oct.
Finished at 20:56 01.10.2020 Thursday Oct. (0hrs 5minutes)

matrix_addition.php

<?php
# https://www.codewars.com/kata/526233aefd4764272800036f Matrix Addition.
function matrix_addition(array $a, array $b): array {
   $size = count($a); $answer = [];
   for($i = 0; $i < $size; $i += 1){
     $zip = array_map(null,$a[$i],$b[$i]);
     $answer[] = array_map(function($x){ return $x[0] + $x[1];}, $zip);
   }
  return $answer;
}