.htaccess - mod_rewrite trouble with /product/?id={xyz} to /product/{xyz} -

my attempt:

rewritecond %{query_string}     ^id=(.*)$    [nc] rewriterule ^/product$       /product/%1      [nc,l,r=301] 

i want apply rule /product/ , /supplier/ directories only. both first level sub directories.

note: product/?id={xxx} product/index.php?id={xxx}. apache hides extensions , indexes. want point out.

my product/index.php handles parameter given , determines page should show:

index.php

if ( isset( $_get['id'] ) && !empty( $_get['id'] ) ) {    //html individual page e.g. /product/?id=foo    //e.g. <h1><?= $_get['id'] ?> page</h1> } else {    //html product list e.g. /product/ (no parameters) } 

try in 1 .htaccess file @ root directory:

options +followsymlinks -multiviews rewriteengine on rewritebase / rewritecond %{query_string} id=(.+)          [nc] rewriterule ^(product|supplier)/?$   /$1/%1? [nc,l,r=301] 

in .htaccess files uri-path test in rule not have leading slash (^/product), therefore regex cannot have either. trailng ? deletes incoming query.

if rule-set placed @ apache main configuration files, leading slash should kept: ^/(product|supplier)/?$

update

to show wanted url still data original url.

request: /product/?id=parameter

options +followsymlinks -multiviews rewriteengine on rewritebase /  rewritecond %{the_request} ^(get|head)\s/(product|supplier)/\?id=([^\s]+) [nc] # strip query , redirect permanently rewriterule  ^(product|supplier)  /$1/%3?   [r=301,l,nc]  rewritecond %{request_filename} !-f rewritecond %{query_string} ^$ # map internally original request rewriterule  ^(product|supplier)/([^/]+)/?  /$1/?id=$2  [l,nc] 

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another option use directly "pretty" url in request:

request /product/parameter /product/?id=parameter

options +followsymlinks -multiviews rewriteengine on rewritebase / rewritecond %{request_filename} !-f rewritecond %{query_string} ^$ rewriterule  ^(product|supplier)/([^/]+)/?  /$1/?id=$2  [l,nc]