How to set rewrite rule only for GET parameter (query string)?

Question

htaccess

Hello. There is a site . There is a url (

http://stopgo.by/audi/a6313/a6c64f2004-2011718?attr_id=58

). The GET parameter serves as a filter here (this is the part ID).
The fact is that this parameter is also used in other URLs, for example here ( http://stopgo.by/catalogs?attr_id=70).
I would like to make it so that only this GET parameter changes, I probably want to replace it with part-id=42, that is, so that, for example, http://stopgo.by/catalogs/part-id=42or

http://stopgo.by/audi/a6313/a6c64f2004-2011718/part-id=42

.
That is, as I understand it, you need to make sure that this parameter is at the very end of the url. How it is possible to register it in RewriteRule?

Answer 1

you want to change only the get parameter itself?
# 301 --- stopgo.by/audi/a6313/a6c64f2004-2011718?attr_id=58 => stopgo.by/audi/a6313/a6c64f2004-2011718?attr_id=58

RewriteCond %{QUERY_STRING} (^|&)attr_id\=([0-9]{1,})($|&)
# если есть такой гет параметр
RewriteRule ^(.+)$ /$1\?part_id=%2 [L,R=301]
#То выделить все что есть в урле и прихреначить к нему такой гет параметр

Where
(.+) - one or more characters and since this is the first bracket in the steering wheel (and there are no parameters in it) then This$1