How to fix nginx startup error?

Question

Nginx

on a server with CentOS 7, I updated the php version, after which nginx stopped starting
. The error is:

how to fix it?

Answer 1

The port is busy, it's written.
nginx and php-fpm config to studio

Answer 2

1. you have the daemon startup logs
2. remove all sites, leave only clean nginx make sure everything works. after that, return them to their place, you can simply gradually reveal a fundamental error.
3. what configtest says, 99% you screwed up with the site config
4. Apache is trying to run on the same port as nginx