For my local dev environment, I have just upgraded from MAMP to MAMP Pro so that I can easily create virtual hosts without getting too involved with configuration files. Server names will be formatted as: foldername.localhost

For my site's directory I want to create an htaccess rule to redirect from http://localhost/foldername to http://foldername.localhost, where "foldername" is a wildcard.

Is this possible?


1 Answer 1


Yes, this is possible:

RewriteEngine On
RewriteCond %{HTTP_HOST} =localhost
RewriteCond %{DOCUMENT_ROOT}/$1 -d
RewriteRule ^([^/]+)(.*) http://$1.localhost$2 [R=301,L]

This will redirect http://localhost/foldername/path/to/file to http://foldername.localhost/path/to/file (where /path/to/file is optional).

There are two parenthesised sub patterns for the "foldername" ($1) and "URL path" ($2).

The second RewriteCond directive checks to see whether the first part of the URL is a valid directory.

  • I have multiple sites in various folders hence the requirement for foldername to be a wildcard. Is the solution above such that I would need to create a rule for each site? Commented Nov 23, 2013 at 16:48
  • It did. I've changed it to be more general.
    – MrWhite
    Commented Nov 23, 2013 at 16:58
  • I've updated (fixed) the code... the RewriteCond directive wasn't checking the local filesystem path.
    – MrWhite
    Commented Nov 23, 2013 at 17:25
  • I really appreciate your help with this, but so far your solution is not working for me. Commented Nov 23, 2013 at 18:10
  • In what way is it not working? Is it redirecting anything? Is there anything else in your .htaccess file that it might be conflicting with?
    – MrWhite
    Commented Nov 23, 2013 at 18:18

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