Passenger vs ReactPHP: What are the differences?
What is Passenger? A fast and robust web server and application server for Ruby, Python and Node.js. Phusion Passenger is a web server and application server, designed to be fast, robust and lightweight. It takes a lot of complexity out of deploying web apps, adds powerful enterprise-grade features that are useful in production, and makes administration much easier and less complex.
What is ReactPHP? Event-driven, non-blocking I/O with PHP. Aa low-level library for event-driven programming in PHP. At its core is an event loop, on top of which it provides low-level utilities.
Passenger and ReactPHP can be primarily classified as "Web Servers" tools.
Passenger is an open source tool with 4.41K GitHub stars and 506 GitHub forks. Here's a link to Passenger's open source repository on GitHub.