ticking_future.php

<?php

declare(strict_types=1);

use function WyriHaximus\React\tickingFuturePromise;

require dirname(__DIR__) . '/vendor/autoload.php';

const WAIT_COUNT = 307200;

$start = time();
$count = 0;
echo 'Wait ' . WAIT_COUNT . ' ticks before resolving:', PHP_EOL;
tickingFuturePromise(static function ($waitCount) use (&$count, $start) {
    echo '.';

    if (++$count === $waitCount) {
        return $start;
    }

    return false;
}, WAIT_COUNT)->then(static function ($start): void {
    echo PHP_EOL, 'That took ' . (time() - $start) . ' seconds.', PHP_EOL;
}, static function ($exception): void {
    echo $exception->getMessage(), PHP_EOL;
});