Harvard Extension School
CSCI E-12 Fundamentals of Web Site Development | Fall 2019

## Rewrite

mod_rewrite uses regular expressions to match on a pattern and rewrite incoming URLs to a new URL location.

- Apache mod_rewrite
- mod_rewrite reference

#### Using mod_rewrite from within `.htaccess`

If you use `RewriteRule` from within an `.htaccess` files, you must use the `RewriteBase` directive.
See: http://httpd.apache.org/docs/current/mod/mod_rewrite.html#rewritebase

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