How to convert array keys into random string in php laravel

Question

I need to convert Array keys into a random string, how is it possible ?

This is how my array displays with the keys

I need to display as below by using str_random(5)

array:2 [▼
  bataj => 229
  akgrt => 228
]

Here's the codes to dump the array

 $files = $this->filesRepo->getByUuids($request->photos);

 $fileId = $files->pluck('id')->toArray();

 dd($fileId);

Answer 1

$keys = array_map(function() {
    return str_random(5);
}, $fileId);

$fileId = array_combine($keys, array_values($fileId));

dd($fileId);