Transforming array values in elements of a subarray using PHP

Question

I would like to merge two arrays in a way that values of first array are transformed in first elements of the subarray and values of the second array are transformed in second elements of the subarray. Here my example:

Array01
(
    [0] => 41558194
    [1] => 44677841
    [2] => 44503689
    [3] => 40651770
)

Array02
(
    [0] => 551
    [1] => 546
    [2] => 531
    [3] => 519
)

mergedArray
(
    [0] => Array([0] => 41558194 [1] => 551)
    [1] => Array([0] => 44677841 [1] => 546)
    [2] => Array([0] => 44503689 [1] => 531)
    [3] => Array([0] => 40651770 [1] => 519)
)

What is the most efficient way to do this? Many thanks in advance!

If they are same size, you can use only one foreach to do that — bksi
– bksi, Commented Oct 14, 2014 at 19:44

starless13 · Accepted Answer · 2014-10-14 19:55:22Z

1

Here is a concise example using array_map:

function merge_arrays($a1, $a2) {
    return array($a1, $a2);
}

$result = array_map("merge_arrays", $arr, $arr2);

answered Oct 14, 2014 at 19:55

starless13

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Comments

Alban Pommeret · Accepted Answer · 2014-10-14 19:48:57Z

0

An example with your values :

  $array1 = array(
        0 => 41558194,
        1 => 44677841,
        2 => 44503689,
        3 => 40651770
    );

    $array2 = array(
        0 => 551,
        1 => 546,
        2 => 531,
        3 => 519
    );


    $finalArray = array();

    foreach ($array1 as $key1 => $value1) {
        $finalArray[$key1] = array($value1, $array2[$key1]);
    }

answered Oct 14, 2014 at 19:48

Alban Pommeret

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