NGINX configuration of a pit, proxy_set_header with underline

Today, my colleague encountered a problem, I have met before.

In Nginx configuration, many stations like to add $_server custom variable proxy_set_header site_name ' abc.com '

$_server always reads Http_site_name in PHP.

Some configurations are missing.

Underscores_in_headers on settings are not valid for various search engines.

In the individual versions

Proxy_set_header site_name ' abc.com '

Invalid.

Rewrite into

Proxy_set_header site-name ' abc.com '

You can do it.

This article is from the "Chen Nan Run" blog, please be sure to keep this source http://chennanrun.blog.51cto.com/4583928/1636667

NGINX configuration of a pit, proxy_set_header with underline