You may want to use the symfony notifier component which can also send messages to slack -> More Information here: https://symfony.com/doc/current/notifier.html
The Bundle will integrate Slack Team-Communication-Software into your Symfony2 Project and in the future will deliver a set of Project-Management-Tools to use between your Symfony-Project and Slack.
Please check the Documentation for Help and Informations about the Usage of the Bundle. There is also a Roadmap available.
SlackBundle is licensed under the MIT license.