Merge Two Multidimensional Arrays - PHP

Question

I have two arrays. The first array has a list of multidimensional arrays. The second array is similar, it also has a list of multidimensional arrays. The first array key has a list of description and the second array key has a list of amount. I need to combine both arrays and get the result shown in the below code. Somebody, please help me. See the below code for reference.

Array - 1

Array
(
    [0] => Array
        (
            [description] => Amul
        )

    [1] => Array
        (
            [description] => Kesar
        )

    [2] => Array
        (
            [description] => Flavour
        )

)

Array - 2

Array
(
    [0] => Array
        (
            [amount] => 100
        )

    [1] => Array
        (
            [amount] => 200
        )

    [2] => Array
        (
            [amount] => 300
        )

)

My result should be like the below.

Array
(
    [0] => Array
        (
            [description] => Amul
            [amount] => 100
        )

    [1] => Array
        (
            [description] => Kesar
            [amount] => 200
        )

    [2] => Array
        (
            [description] => Flavour
            [amount] => 3
        )

)

I created 2 arrays and wrote one method, but it is not working — Ashish, May 28 '22 at 11:31
Then show your method. We can not see what is wrong with it unless we see the code :) — ArSeN, May 28 '22 at 11:33
There's no meaning in sending a code. I'm trying your code and let you know. — Ashish, May 28 '22 at 11:38

score 2 · Answer 1 · answered May 28 '22 at 11:46

2

you can do it "laravel way" with collection's zip method

  $result = collect($array1)->zip(collect($array2));

or already answered here (credits to @habnabit)

  $result = array_map(null, $a, $b, $c, ...);

answered May 28 '22 at 11:46

Ol D. Castor

360
2
8

nazim · Answer 2 · 2022-05-28T12:03:45.390

For associative arrays with non-numeric keys you can use the php built in function array_merge_recursive. Something like this:

$arr = array
(
  'a'=>array
    (
      'description' => 'Amul'
    ),
  'b'=>array
    (
      'description' => 'Kesar'
    ),
  'c'=>array
    (
      'description' => 'Flavour'
    )
);

$arr2 = array
(
  'a'=>array
    (
      'amount' => '100'
    ),
  'b'=>array
    (
      'amount' => '200'
    ),
  'c'=>array
    (
      'amount' => '300'
    )
);

var_dump(array_merge_recursive($arr, $arr2));

FIDDLE LINK

If it is numeric keys, you have to use manual merging like in the other answers.

score 1 · Answer 3 · answered May 28 '22 at 11:33

This is achievable with a simple loop.

$arr = [['bla' => 1], ['bla' => 3]];
$arr2 = [['blu' => 2], ['blu' => 4]];

$newArr = [];

foreach ($arr as $key => $value) {
    $newArr[] = $value + $arr2[$key];
}

var_dump($newArr);

Note that this will only work if you the indexes of the input arrays align with each other.

Output:

array(2) {
  [0]=>
  array(2) {
    ["bla"]=>
    int(1)
    ["blu"]=>
    int(2)
  }
  [1]=>
  array(2) {
    ["bla"]=>
    int(3)
    ["blu"]=>
    int(4)
  }
}

Example: https://3v4l.org/WJhAR

score 1 · Answer 4 · answered May 28 '22 at 11:35

1

You can simply do this by a loop:

$result = [];
for ($i = 0; $i < count($arr1); $i++) {
    $result[] = array_merge($arr1[$i], $arr2[$i]);
}

answered May 28 '22 at 11:35

WebPajooh

98
6

Merge Two Multidimensional Arrays - PHP

4 Answers4