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    <h3>Editing: ResourceCollection.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

namespace Illuminate\Http\Resources\Json;

use Countable;
use Illuminate\Http\Resources\CollectsResources;
use Illuminate\Pagination\AbstractCursorPaginator;
use Illuminate\Pagination\AbstractPaginator;
use IteratorAggregate;

class ResourceCollection extends JsonResource implements Countable, IteratorAggregate
{
    use CollectsResources;

    /**
     * The resource that this resource collects.
     *
     * @var string
     */
    public $collects;

    /**
     * The mapped collection instance.
     *
     * @var \Illuminate\Support\Collection
     */
    public $collection;

    /**
     * Indicates if all existing request query parameters should be added to pagination links.
     *
     * @var bool
     */
    protected $preserveAllQueryParameters = false;

    /**
     * The query parameters that should be added to the pagination links.
     *
     * @var array|null
     */
    protected $queryParameters;

    /**
     * Create a new resource instance.
     *
     * @param  mixed  $resource
     * @return void
     */
    public function __construct($resource)
    {
        parent::__construct($resource);

        $this-&gt;resource = $this-&gt;collectResource($resource);
    }

    /**
     * Indicate that all current query parameters should be appended to pagination links.
     *
     * @return $this
     */
    public function preserveQuery()
    {
        $this-&gt;preserveAllQueryParameters = true;

        return $this;
    }

    /**
     * Specify the query string parameters that should be present on pagination links.
     *
     * @param  array  $query
     * @return $this
     */
    public function withQuery(array $query)
    {
        $this-&gt;preserveAllQueryParameters = false;

        $this-&gt;queryParameters = $query;

        return $this;
    }

    /**
     * Return the count of items in the resource collection.
     *
     * @return int
     */
    #[\ReturnTypeWillChange]
    public function count()
    {
        return $this-&gt;collection-&gt;count();
    }

    /**
     * Transform the resource into a JSON array.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array|\Illuminate\Contracts\Support\Arrayable|\JsonSerializable
     */
    public function toArray($request)
    {
        return $this-&gt;collection-&gt;map-&gt;toArray($request)-&gt;all();
    }

    /**
     * Create an HTTP response that represents the object.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function toResponse($request)
    {
        if ($this-&gt;resource instanceof AbstractPaginator || $this-&gt;resource instanceof AbstractCursorPaginator) {
            return $this-&gt;preparePaginatedResponse($request);
        }

        return parent::toResponse($request);
    }

    /**
     * Create a paginate-aware HTTP response.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\JsonResponse
     */
    protected function preparePaginatedResponse($request)
    {
        if ($this-&gt;preserveAllQueryParameters) {
            $this-&gt;resource-&gt;appends($request-&gt;query());
        } elseif (! is_null($this-&gt;queryParameters)) {
            $this-&gt;resource-&gt;appends($this-&gt;queryParameters);
        }

        return (new PaginatedResourceResponse($this))-&gt;toResponse($request);
    }
}
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