Redirect URL without changing URL in address bar?

Question

PHP

Good afternoon, please tell me with one question, it is necessary to make a server redirect without changing the URL in the address bar, that is, what I mean

Now reviews open at:
/index.php?dispatch=discussion.view&thread_id=1
And in the address bar, exactly the same URL

It is necessary that the same URL be requested , but in the address bar of the browser there was a completely different look:
/reviews/1

For this, I wrote a rule in .htaccess, but for some reason it does not work, tell me what I did wrong?

RewriteEngine on
RewriteBase /
RewriteRule ^/index\.php\?dispatch=discussion\.view&thread_id=([\d]+)$ /reviews/$1/? [L,R=301]

Answer 1

The RewriteRule contains only the path to the file index.php, and the parameters dispatch=discussion.view&thread_id=1should be looked for in %{QUERY_STRING} or %{THE_REQUEST}.

RewriteCond %{ENV:REDIRECT_STATUS} ^$
RewriteCond %{QUERY_STRING} (?:^|&)dispatch=discussion\.view(?:$|&)
RewriteCond %{QUERY_STRING} (?:^|&)thread_id=(\d+)(?:$|&)
RewriteRule ^index\.php$ /reviews/%1/? [R=301,L]

RewriteRule ^reviews/(\d+)/$  /index.php?dispatch=discussion.view&thread_id=$1 [L]