array-map.xml Change the misleading wording

[mmalferov]

When performing a zip operation, keys of input arrays are ignored. The function only considers the sequential order of elements (as determined by their internal pointers), not their indices:

<?php

$a = [42 => 1, 'foo' => 2, '' => 3, 0 => 4, -4 => 5];
$b = [4 => 'one', 3 => 'two', 2 => 'three', 1 => 'four', 0 => 'five'];
$c = [-4 => 'uno', 0 => 'dos', '' => 'tres', 'foo' => 'cuatro', 42 => 'cinco'];

$d = array_map(null, $a, $b, $c);
print_r($d);

Output:

Array
(
    [0] => Array
        (
            [0] => 1
            [1] => one
            [2] => uno
        )

    [1] => Array
        (
            [0] => 2
            [1] => two
            [2] => dos
        )

    [2] => Array
        (
            [0] => 3
            [1] => three
            [2] => tres
        )

    [3] => Array
        (
            [0] => 4
            [1] => four
            [2] => cuatro
        )

    [4] => Array
        (
            [0] => 5
            [1] => five
            [2] => cinco
        )

)

As we can see, the indexes were ignored