.htaccess - I want to change URL for specific page for my wordpress site through htaccess or using wordpress function -

i have url http://www.shreyinnovations.com/edudemo/app-detail/?app-detail=a-level%20revision need replace below http://www.shreyinnovations.com/edudemo/app/a-level%20revision

i change .htaccess file change below

# begin wordpress <ifmodule mod_rewrite.c> rewriteengine on rewritebase /edudemo/ rewriterule ^app/([0-9]+)$ app-detail?app-detail=$1 [qsa] rewriterule ^index\.php$ - [l] rewritecond %{request_filename} !-f rewritecond %{request_filename} !-d rewriterule . /edudemo/index.php [l]  </ifmodule>  # end wordpress 

i used wordpress function change appche rule rewrite address this

add_action( 'init', 'app_detail_rewrite_rules' );  add_action( 'generate_rewrite_rules', 'app_detail_rewrite_rules' ); function app_detail_rewrite_rules(){    add_rewrite_rule('^app/([0-9]+)','app-detail?app-detail=$matches[1]','top'); } 

but still can't url want.please let me know if have solution this.

thanks in advance.

try adding code before wp rule-set:

rewriteengine on rewritecond %{request_uri}  ^/edudemo/app-detail [nc] rewritecond %{query_string}  app-detail=([^&/]+) [nc] rewriterule .*               /edudemo/app/%1?    [r=301,l]                # begin wordpress 

for internal mapping, remove r=301 [r=301,l]