Communication Software for PHP
vBulletin
vBulletin is a powerful commercial forum software written in PHP. The software is built to be easily extended through plguins and customized with themes. vBulletin is used to power many of the largest forum, communities and social site across the web. Over 100,000 sites are currenty powered by vBulletin.
GNU social
GNU social connects you to a free network of thousands of communities that discuss daily on a variety of topics, each being part of the whole. GNU social supports both single-user and community modes and can be used in an intranet environment or as part of the wider open network. The free and open source microblogging server is written in PHP and built on-top of the OStatus standard for inter-operation between installations.
Armia Chat SDK - A lightweight SDK in REACT Native
Creating a messaging platform like WhatsApp, Facebook messenger, Signal can be easily done through Chat SDK.User can easily add chat functionality in their mobile as well as in desktop. The react native armia chat sdk library includes components you need to build a functioning chat user experience in React with support for one to one and group chat. User can send audio and video messages, exchange photos and files. It uses Firebase as the backend service. You can download the FREE SDK to save months of development time from your project using the Chat SDK.