How to wrap array elements in an additional key (index)?

Question

PHP

There is an array:

Array
(
    [82] => Array
        (
            /*значения*/
        )
    [83] => Array
        (
            /*значения*/
        )
    [84] => Array
        (
            /*значения*/
        )
)

How to make it like this:

Array
(
    [0] => Array
        (
            [82] => Array
                 (
                    /*значения*/
                 )
        )
    [1] => Array
        (
            [83] => Array
                 (
                    /*значения*/
                 )
        )
    [2] => Array
        (
            [84] => Array
                 (
                    /*значения*/
                 )
        )
)

?

Answer 1

<?php

$startArray = array(
  50 => 'lorem',
  70 => 'ipsum',
  60 => 'dolor',
);

$endArray = array();

foreach($startArray as $key => $item) {
    $endArray[] = array($key => $item);
}

print_r($endArray);

Answer 2

Loop through the array and create a new array with elements from the old one, as an option.

Answer 3

$map = function ($key, $value) { return [$key => $value]; };
$array = array_map($map, array_keys($array), array_values($array));