mod_rewrite 2 variables, but only 1 needed in output

Question

I want to redirect visitors who get to my old phpbb forum URLs to my new URL structure.
http://mydomain.com/phpbb/viewtopic.php?f=$var1&t=$var2 (f=$var1, t=$var2 are integers)
to
http://mydomain.com/topic/$var2

My .htaccess mod_rewrite code:

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteRule ^phpbb/viewtopic\.php\?f=\d+&t=(\d+)$ topic/$2 [L]
</IfModule>

But it doesn't work. How can I change the code that it works?

Ulrich Palha · Accepted Answer · 2012-01-26T22:06:02.183

1

Add the following to the .htaccess in the root folder of your site.

RewriteEngine on
RewriteBase /

#place these two lines before any other rules in your .htacess
RewriteCond %{QUERY_STRING} (^|&)t=([0-9]+)(&|$) [NC]
RewriteRule ^phpbb/viewtopic\.php$ /topic/%2? [L,R,NC]

edited Jan 26 '12 at 22:06

answered Jan 26 '12 at 21:59

Ulrich Palha

9,411
3
25
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Thank you it works! But some minor mistake (doesn't bother me), it adds ?f=4&t=517 in the end of the URL (http://mydomain.com/topic/517?f=4&t=517) – ProximityEffect Jan 26 '12 at 22:04
1

@ProximityEffect add a `?` to rule as above to remove the query string – Ulrich Palha Jan 26 '12 at 22:06
Not quite: [R] defaults to [R=302]. The OP wants a permanent redirect for his purposes. – TerryE Jan 26 '12 at 22:15
So I should change R to R=301 to make it a permanent redirect? (for search engine indexing) – ProximityEffect Jan 26 '12 at 22:18
@TerryE I could not find any reference to `permanent`, but will let OP know. Thanks – Ulrich Palha Jan 26 '12 at 22:20
1

@ProximityEffect If you want the redirect to be `permanent` then use `R=301` i.e. change last rule to `RewriteRule ^phpbb/viewtopic\.php$ /topic/%2? [L,R=301,NC]`. And yes, this is better for SEO – Ulrich Palha Jan 26 '12 at 22:21

score 0 · Answer 2 · answered Jan 26 '12 at 22:11

0

RewriteEngine on
RewriteBase   /
RewriteCond   %{QUERY_STRING}        \bt=([0-9]+)
RewriteRule   ^phpbb/viewtopic\.php  topic/%1?    [R=301,NC,L]

answered Jan 26 '12 at 22:11

TerryE

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5
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mod_rewrite 2 variables, but only 1 needed in output

2 Answers2