Change url parameter in htaccess using regex

Question

I have pages with the following parameters: /article.php?sid=123&cat1=en

I need to change that cat1 to cat and redirect to the same address.

I've tried RewriteRule ^/article.php?sid=(.*)&cat1=(.*)$ /article.php?sid=$1&cat=$2 [R=301,L] but it's not working.

anubhava · Accepted Answer · 2017-09-18 14:52:37Z

1

You can use this rule to match & replace a given query parameter at any position.

Keep this rule as your very first rule:

RewriteEngine On

RewriteCond %{QUERY_STRING} ^(.*&)?cat1=([^&]*(?:&.*)?)$ [NC]
RewriteRule ^article\.php$ %{REQUEST_URI}?%1cat=%2 [R=301,NE,L]

answered Sep 18, 2017 at 14:25

anubhava

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2 Comments

thanks. How would I go around if I had just one parameter say: /article.php?cat1=en?

I made a minor update. http://localhost/article.php?cat1=en will be redirected to http://localhost/article.php?cat=en