General

The mod_rewrite is a very powerful module for manipulating the server side path ways and conversions with Apache. To further my studies on this feature, I have dedicated this page to everything about it.

Example 1: Rewriting with some matches

My first example is composed of a very basic transformation from one value to another.

[code]

RewriteEngine On
RewriteBase /thebase
RewriteRule ^matchone/(.*) /MatchOne/$1 [R=301,L]
RewriteRule ^matchtwo/(.*) /MatchTwo/$1 [R=301,L]
RewriteRule ^Match/(.*) /match/$1 [R=301,L]
# send anyone going target_a, redirect to to target_b
RewriteRule ^target_a/(.*)/?$ http://site.domain.com/default/index.php/$1 [L]

[/code]

Example 2: Rewriting with some matches except for visits from a specific IP Address

Example 3: Rewriting with query parameters

Sometimes we have a query parameter in the url and need to have it targeted. The following conditions check first for a specific url and then a query parameter, then rewrite the url to a new value:

[code]
RewriteCond %{REQUEST_URI} ^/about/index.html$
RewriteCond %{QUERY_STRING} ^queryparamname=a_value$
RewriteRule ^/about/index.html$ /newabout/section [R,L]
[/code]