How to change a position of an multidimensional array in a multidimensional array? PHP

So I have something like this:

$C = [ 
$B = [ $S = [$D[]], $H = [$C[]], $G = [$L[]]]]

I need to put array $H (which I know the name), with all of it’s elements on the first place, so it goes like this:

$C = [ 
$B = [ $H = [$C[]], $S = [$D[]], $G = [$L[]]]]

How can I do that?

Answer

Hope this solution solves your purpose:

<?php

$C = ['B' => ['S' => ['C' => []], 'H' => ['D' => []], 'G' => ['L' => []]]];

function moveArrayElementOnTop($array, $element = 'H')
{
    $finalArray = array();

    foreach ($array as $key => $values) {
        foreach ($values as $k => $v) {
            if ($k == $element) {
                $temp[$key][$k] = $v;
                unset($array[$key][$k]);
            }
        }

        if (isset($temp[$key])) {
            $finalArray[$key] = $temp[$key] + $array[$key];
        } else {
            $finalArray[$key] = $array[$key];
        }

    }

    return $finalArray;
}

echo "<pre>";
print_r(moveArrayElementOnTop($C));
echo "</pre>";

Demo: https://3v4l.org/AVQBH