botman.php

<?php

use React\EventLoop\Factory;
use BotMan\BotMan\BotManFactory;
use BotMan\BotMan\Cache\ArrayCache;
use BotMan\BotMan\Drivers\DriverManager;
use BotMan\Drivers\Slack\SlackRTMDriver;

$loop = Factory::create();

// Do stuff with $loop
$loop->addPeriodicTimer(60, function () use ($botman) {
    $timeout = 2.0;
    $botman->getClient()->checkConnection($timeout);
});

DriverManager::loadDriver(SlackRTMDriver::class);

return BotManFactory::createForRTM($config, $loop, new ArrayCache());