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DrDamnit
Asked: 2017-01-12 10:13:38 +0800 CST

Rewrite rule to re-write old to pretty URLs

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I want https://www.example.com/somePage.php?id=1234 to be redirected to https://www.example.com/tool/1234 (so that legacy links and bookmarks work).

I think I am close, but this appears to not work...

RewriteRule ^somePage.php?toolid=([0-9]+)$ /tool/$1 [R=301,L]

What's wrong here?

apache-2.2 rewrite mod-rewrite

1 Answers

  1. You can't match the query string in the RewriteRule pattern. You need to use a RewriteCond directive and compare against the QUERY_STRING server variable.

    But also, assuming you have an internal rewrite later in your config file that rewrites back to the (real) ugly URL then you can't do a simple redirect, as it will result in a redirect loop. You need to make sure you only redirect the initial request, not the rewritten URL.

    Assuming this is .htaccess, based on your existing RewriteRule pattern, try the following, near the top of your config file:

    RewriteCond %{ENV:REDIRECT_STATUS} ^$
RewriteCond %{QUERY_STRING} ^toolid=(/d+)$
RewriteRule ^somePage\.php$ /tool/%1 [R=301,L]

    Note, however, that your example URLs differ from your code example. I've gone with your code example.

    The REDIRECT_STATUS environment variable is empty on the initial request, but gets set to "200" after a successful internal rewrite. So, this avoids a redirect loop in per-directory .htaccess files.

    Make sure you've cleared your browser cache, since any erroneous 301s (whilst testing) will have been cached by the browser.

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