NGINX Unit vs PHP-FPM: What are the differences?
What is NGINX Unit? A dynamic web and application server with Go, PHP, Python, Perl, and Ruby support. NGINX Unit is a dynamic web application server, designed to run applications in multiple languages. Unit is lightweight, polyglot, and dynamically configured via API. The design of the server allows reconfiguration of specific application parameters as needed by the engineering or operations.
What is PHP-FPM? * An alternative FastCGI daemon for PHP*. It is an alternative PHP FastCGI implementation with some additional features useful for sites of any size, especially busier sites. It includes Adaptive process spawning, Advanced process management with graceful stop/start, Emergency restart in case of accidental opcode cache destruction etc.
NGINX Unit belongs to "Web Servers" category of the tech stack, while PHP-FPM can be primarily classified under "Background Processing".
NGINX Unit is an open source tool with 2.02K GitHub stars and 147 GitHub forks. Here's a link to NGINX Unit's open source repository on GitHub.
According to the StackShare community, NGINX Unit has a broader approval, being mentioned in 15 company stacks & 31 developers stacks; compared to PHP-FPM, which is listed in 9 company stacks and 8 developer stacks.