Online PHP editor | output for hmtj5

@ 2017-11-08T18:28:03Z

<?php

$input = [
  0 => [ 'one' => 10, 'two' => 20, 'three' => 50, 'four' => 80, 'five' => 100],
  1 => [ 'three' => 20, 'five' => 20, 'six' => 100, 'seven' => 10],
  2 => [ 'one' => 30, 'three' => 30, 'five' => 10, 'eight' => 10]
];

$combined = [];
foreach($input as $array) {
  foreach($array as $key => $value) {
    $combined[$key][] = $value;
  }
}

$averages = array_map(function($item) {
  return array_sum($item)/count($item);
}, $combined);

var_dump($averages);

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14: array(8) { ["one"]=> int(20) ["two"]=> int(20) ["three"]=> float(33.333333333333336) ["four"]=> int(80) ["five"]=> float(43.333333333333336) ["six"]=> int(100) ["seven"]=> int(10) ["eight"]=> int(10) }
Output for 7.0.0 - 7.0.25, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33: array(8) { ["one"]=> int(20) ["two"]=> int(20) ["three"]=> float(33.333333333333) ["four"]=> int(80) ["five"]=> float(43.333333333333) ["six"]=> int(100) ["seven"]=> int(10) ["eight"]=> int(10) }

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