PHP 中的组合字符串和数值两个多维数组

Question

我有以下两个包含字符串和数字的数组，

我只想保留一个字符串 header 并将每个键值的数值与另一个数组相加。

我尝试了很多在线可用的解决方案，但没有找到所需的解决方案。

$array1 = 
Array
(
    [0] => Array
        (
            [0] => Out Of Warranty
            [1] => Total Orders
            [2] => Total Qty
            [3] => Canceled Orders
        )

    [1] => Array
        (
            [0] => Today<br/>(04-26-2020)
            [1] => 1
            [2] => 1
            [3] => 0
        )

    [2] => Array
        (
            [0] => Yesterday<br/>(04-25-2020)
            [1] => 0
            [2] => 0
            [3] => 0
        )

    [3] => Array
        (
            [0] => This Week<br/>(04-20-2020 - 04-26-2020)
            [1] => 22
            [2] => 39
            [3] => 0
        )

    [4] => Array
        (
            [0] => Last Week<br/>(04-13-2020 - 04-19-2020)
            [1] => 7
            [2] => 7
            [3] => 0
        )

    [5] => Array
        (
            [0] => This Month<br/>(04-01-2020 - 04-26-2020)
            [1] => 29
            [2] => 46
            [3] => 0
        )

    [6] => Array
        (
            [0] => This Year<br/>(01-01-2020 - 04-26-2020)
            [1] => 30
            [2] => 47
            [3] => 0
        )

)

$array2 = 
Array
(
    [0] => Array
        (
            [0] => Out Of Warranty
            [1] => Total Orders
            [2] => Total Qty
            [3] => Canceled Orders
        )

    [1] => Array
        (
            [0] => Today<br/>(04-24-2020)
            [1] => 10
            [2] => 10
            [3] => 0
        )

    [2] => Array
        (
            [0] => Yesterday<br/>(04-23-2020)
            [1] => 7
            [2] => 7
            [3] => 0
        )

    [3] => Array
        (
            [0] => This Week<br/>(04-20-2020 - 04-24-2020)
            [1] => 51
            [2] => 51
            [3] => 0
        )

    [4] => Array
        (
            [0] => Last Week<br/>(04-13-2020 - 04-19-2020)
            [1] => 31
            [2] => 31
            [3] => 0
        )

    [5] => Array
        (
            [0] => This Month<br/>(04-01-2020 - 04-24-2020)
            [1] => 93
            [2] => 93
            [3] => 0
        )

    [6] => Array
        (
            [0] => This Year<br/>(01-01-2020 - 04-24-2020)
            [1] => 1281
            [2] => 1281
            [3] => 1
        )

)

预期输出为字符串应仅使用一次且数字应相互相加。

例如输出应该是 6 个索引，即 array1 和 array2 的 6 个索引之和 -

[6] => Array
            (
                [0] => This Year<br/>(01-01-2020 - 04-26-2020)
                [1] => 1311
                [2] => 1328
                [3] => 1
            )

Answer 1

如果您的数组始终按相同顺序排序：

$newItems = [];
foreach ($array1 as $key => $item) {
    $newItems[] = [
        $item[0],
        $item[1] + $array2[$key][1],
        $item[2] + $array2[$key][2],
        $item[3] + $array2[$key][3],
    ];
}

如果数组中的键顺序不同：

$newItems = [];
foreach ($array1 as $item) {
    $name = $item[0];
    $newItems[$name] = $item;
}
foreach ($array2 as $item) {
    $name = $item[0];
    $newItems[$name][1] += $item[1];
    $newItems[$name][2] += $item[2];
    $newItems[$name][3] += $item[3];
}
// apply array_values to get 0-indexed array
$newItems = array_values($newItems);

Answer 2

只迭代求和逻辑所必需的元素。使用 2 个循环将是对列 [1]、[2] 和 [3].

求和的最简洁和深思熟虑的方法

您可以创建一个新的输出数组，但只需将第二个数组值添加到第一个数组中即可提供更简单的加法赋值语法。

代码：(Demo)

for ($i = 1, $size = count($array2); $i < $size; ++$i) {  // don't iterate [0] subarray (headers)
    for ($col = 1; $col <= 3; ++$col) {  // don't iterate [0] element (name)
        $array1[$i][$col] += $array2[$i][$col];
    }
}
var_export($array1);

输出：

array (
  0 => 
  array (
    0 => 'Out Of Warranty',
    1 => 'Total Orders',
    2 => 'Total Qty',
    3 => 'Canceled Orders',
  ),
  1 => 
  array (
    0 => 'Today<br/>(04-26-2020)',
    1 => 11,
    2 => 11,
    3 => 0,
  ),
  2 => 
  array (
    0 => 'Yesterday<br/>(04-25-2020)',
    1 => 7,
    2 => 7,
    3 => 0,
  ),
  3 => 
  array (
    0 => 'This Week<br/>(04-20-2020 - 04-26-2020)',
    1 => 73,
    2 => 90,
    3 => 0,
  ),
  4 => 
  array (
    0 => 'Last Week<br/>(04-13-2020 - 04-19-2020)',
    1 => 38,
    2 => 38,
    3 => 0,
  ),
  5 => 
  array (
    0 => 'This Month<br/>(04-01-2020 - 04-26-2020)',
    1 => 122,
    2 => 139,
    3 => 0,
  ),
  6 => 
  array (
    0 => 'This Year<br/>(01-01-2020 - 04-26-2020)',
    1 => 1311,
    2 => 1328,
    3 => 1,
  ),
)