htaccess 通过子域访问文件夹

Question

I am trying to make a rule in .htaccess to access a folder via subdomain alias (with parameters).

sub.example.com => example.com/sub/index.php
sub.example.com/language-fr => example.com/sub/inner_page.php?lang=fr

I found a simple solution for subdomains with parameters.

RewriteCond %{HTTP_HOST} ^sub.example.com
RewriteRule ^(.*)$ /sub/inner_page.php?lang=$1 [L,NC,QSA]

This works correctly. When i browse to sub.example.com/language-fr i am getting the contents of example.com/sub/inner_page.php?lang=fr But this doesn't work when i browse sub.example.com i see error ERR_TOO_MANY_REDIRECTS.

Please tell me how to correctly specify the rules for accessing sub.example.com and internal pages with parameters like sub.example.com/language-fr?

Answer 1

I actually cannot explain in detail why you enter a redirection loop here.. but this should be a working solution.

RewriteCond one after another add each other using AND (unless you use the [OR] flag)

I would use this on the %{REQUEST_URI} to prevent each case to be detected by the other ( ^$ means "empty"):

RewriteCond %{HTTP_HOST} ^sub.example.com
RewriteCond %{REQUEST_URI} !^$
RewriteRule ^(.+)$ /sub/inner_page.php?lang=$1 [L,NC,QSA]

RewriteCond %{HTTP_HOST} ^sub.example.com
RewriteCond %{REQUEST_URI} ^$
RewriteRule ^$ /sub/index.php [L,NC,QSA]