Hints and tips on mod_rewrite
These are some helpful hints on various topics.
apache
bash
cmd
database
java
javascript
linux
mod_rewrite
mssql
mysql
oracle
os
perl
php
regex
rsync
ssh
svn
unix
web_design
windows
Adding www to domain name
If you want you users and search bots to be redirected from http://domain.com/some-page.html to http://www.domain.com/some-page.html for any page some-page.html add the following code to you .htaccess file.RewriteEngine on
RewriteCond %{HTTP_HOST} !^www\.domain\.com$
RewriteRule .* http://www.domain.com%{REQUEST_URI} [L,R=301]
Erorr "400 Bad request" when using mod_rewrite
Sometimes when you use mod_rewrite you get "400 Bad request" error, when accessing directory without trailing slash. For example http://domain.com/forum returns "400 Bad request" when forum is directory while http://domain.com/forum/ has normal response. To fix this issue use this fragment in your .htaccess file:RewriteCond %{REQUEST_FILENAME} -d
RewriteCond %{REQUEST_URI} (.*)
RewriteRule (.+)[^/] %1/ [R=301,L]