advanced patterns with PHP's `array_map` and associative arrays in PHP 8.1
I've spent hours debugging this and I need some guidance on I've searched everywhere and can't find a clear answer... I'm working with an scenario when using PHP's `array_map` function with an associative array in PHP 8.1. The goal is to transform the values in an associative array while keeping the keys intact. However, instead of returning a properly transformed associative array, it seems to be returning a numerically indexed array with the keys lost. Here's the code I'm using: ```php $data = [ 'first' => 'Alice', 'second' => 'Bob', 'third' => 'Charlie' ]; $transformed = array_map(function($name) { return strtoupper($name); }, $data); print_r($transformed); ``` When I run this, the output is: ``` Array ( [0] => ALICE [1] => BOB [2] => CHARLIE ) ``` I expected the output to maintain the original keys, like this: ``` Array ( [first] => ALICE [second] => BOB [third] => CHARLIE ) ``` I have tried using `array_walk`, but it modifies the original array, which I want to avoid. Is there a way to achieve this without losing the keys? Also, I've read that sometimes using `array_map` with associative arrays can lead to this kind of behavior. If so, what would be the recommended approach to transform the values while preserving the keys in PHP 8.1? Any help would be greatly appreciated! Is there a better approach? This is my first time working with Php 3.11. What am I doing wrong?