<?php
$array = [
'MONDAY' => [
'REFRIGERATOR' => [3, 9, 7],
'WASHINGMACHINE' => [2, 4, 2, 8]
],
'TUESDAY' => [
'REFRIGERATOR' => [5, 3, 8],
'OVEN' => [4, 1, 4]
],
'WEDNESDAY' => [
'TV' => [6, 9],
'REFRIGERATOR' => [2, 3, 5, 2]
],
'THURSDAY' => [
'TV' => [5, 3, 3, 2],
'FAN' => [4, 9, 8, 5]
],
'FRIDAY' => [
'WASHINGMACHINE' => [8, 5],
'OVEN' => [3, 9, 7]
]
];
$result = [];
foreach ($array as $set) {
foreach ($set as $k => $values) {
$result[$k] = ($result[$k] ?? 0) + array_sum($values);
}
}
var_export($result);
- Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
- array (
'REFRIGERATOR' => 47,
'WASHINGMACHINE' => 29,
'OVEN' => 28,
'TV' => 28,
'FAN' => 26,
)
preferences:
90.99 ms | 402 KiB | 62 Q