PHPAsyncRequests: No block and stop on first result

<?php
declare(strict_types=1);

namespace App\Service;

use Fiber;

class PHPAsyncRequests
{
    private array $requests = [];
    private array $handleMap = [];
    private array $curlHandles = [];
    private \CurlMultiHandle $mh;
    private \CurlMultiHandle $mhFiber;
    private bool $successful = false;
    private Fiber $fiber;

    public function __construct(array $requests)
    {
        $this->requests = $requests;
        $this->mh = curl_multi_init();
        $this->mhFiber = curl_multi_init();
    }

    public function execute()
    {
        $this->prepareHandles();
        $this->startFiber();

        $this->processMainHandles();
        $this->processFiberHandles();

        $this->closeHandles();

        return $this->successful;
    }

    private function prepareHandles()
    {
        $halfOfList = floor(count($this->requests) / 2);
        foreach ($this->requests as $index => $request) {
            $ch = curl_init($request['url']);

            $this->curlHandles[] = $ch;
            if ($index > $halfOfList) {
                curl_multi_add_handle($this->mhFiber, $ch);
                $this->handleMap[(int)$ch] = $this->mhFiber;
            } else {
                curl_multi_add_handle($this->mh, $ch);
                $this->handleMap[(int)$ch] = $this->mh;
            }
        }
    }


    private function startFiber()
    {
        $this->fiber = new Fiber(function () {
            $still_running = null;
            do {
                curl_multi_exec($this->mhFiber, $still_running);
                while ($info = curl_multi_info_read($this->mhFiber)) {
                    if ($info['msg'] == CURLMSG_DONE) {
                        $this->successful = true;
                        break;
                    }
                }
                Fiber::suspend();
            } while ($still_running && !$this->successful);
        });

        $this->fiber->start();
    }

    private function processMainHandles(): void
    {
        $still_running = null;
        do {
            $status = curl_multi_exec($this->mh, $still_running);
            while ($info = curl_multi_info_read($this->mh)) {
                if ($info['msg'] == CURLMSG_DONE) {
                    $this->successful = true;
                    break;
                }
            }
            if ($this->successful) {
                break;
            }
        } while ($still_running);
    }

    private function processFiberHandles(): void
    {
        while (!$this->fiber->isTerminated()) {
            $this->fiber->resume();
        }
    }

    private function closeHandles()
    {
        foreach ($this->curlHandles as $ch) {
            $multiHandle = $this->handleMap[(int)$ch];
            curl_multi_remove_handle($multiHandle, $ch);
        }
        curl_multi_close($this->mh);
        curl_multi_close($this->mhFiber);
    }

}


   $requests = [
            [
                'url' => 'https://webhook.site/fad1851c-62a5-4d6b-abf8-ef8fadca0fe6',
                'options' => [CURLOPT_TIMEOUT => 10, /* Weitere Optionen */],
            ],
            [
                'url' => 'https://webhook.site/fad1851c-62a5-4d6b-abf8-ef8fadca0fe6',
                'options' => [CURLOPT_RETURNTRANSFER => true, /* Weitere Optionen */],
            ],
            [
                'url' => 'https://testfile.org/files-5GB',
                'options' => [CURLOPT_RETURNTRANSFER => true, /* Weitere Optionen */],
            ],
        ];
        $parallelRequests = new PHPAsyncRequests($requests);
        $status = $parallelRequests->execute();

Anyone maybe want to update this ;)