A helper trait that provides basic PHP compatibility with @livewire's Sortable package

Sortable.php

<?php

trait Sortable
{
    /**
     * This function receives a $newOrder array parameter, which contains the order in which
     * we should sort our items after being dragged in the UI. The format of the $newOrder is:
     *
     * [
     *      newIndex => [
     *          order => Numerical order, used in case index keys don't preserve order
     *          value => Reference to the items being dragged. In our case, the "previous index" that the item had.
     *      ]
     * ]
     *
     * With this in mind, we simplify the process by using collection methods and
     * keep the code cleaner and a little more descriptive by itself.
     *
     * @see https://github.com/livewire/sortable
     *
     * @param array $haystack
     * @param array $orderEvent
     */
    protected function onSort(array &$haystack, array $orderEvent): void
    {
        $haystack = collect($orderEvent)
            ->sortBy('order')
            ->map(fn(array $ref) => $haystack[(int) $ref['value']])
            ->toArray();
    }
}