Laravel Eloquent Pluck without losing the key

I have the following collection in Laravel:

 ["TheNumbers":[{"episodeID":16818,"episodeNumber":100,"created_at":null,"updated_at":null},{"episodeID":16818,"episodeNumber":210,"created_at":"2017-02-20 21:30:38","updated_at":"2017-02-20 21:30:38"}]

If I run the following code:

$TheEpisode->TheNumbers->pluck('episodeNumber');

I will get the following result:

[100,210]

I would like to keep the keys for each number, how can I achieve this?

EDIT: EXPECTED RESULT:

This is my expected result:

[{"episodeNumber":100},{"episodeNumber":210}]

PHILIS PETERS (improved)

TheEpisode->TheNumbers->reduce(function ($result, $episode) {
          $episodeData = (collect())->put('episodeNumber', $episode['episodeNumber']);
          $result[] = $episodeData;
          return $result;
        }));

Answer

Try something like this, it should work using map…

return $TheEpisode->TheNumbers->map(function ($episode) {
    return ['episodeNumber' => $episode['episodeNumber']];
});