PhpSlackBot\Bot::getCommand PHP Method

    private function getCommand($data)
    {
        if (empty($data['text'])) {
            return null;
        }
        $find = '/^' . preg_quote('<@' . $this->context['self']['id'] . '>', '/') . '[ ]*/';
        $text = preg_replace($find, '', $data['text']);
        if (empty($text)) {
            return null;
        }
        foreach ($this->commands as $commandName => $availableCommand) {
            $find = '/^' . preg_quote($commandName) . '/';
            if (preg_match($find, $text)) {
                return $availableCommand;
            }
        }
        return null;
    }