.htaccess redirection with query string on url

Question

I have a website www.example.com/blog/abc. I need it to redirect to www.example.com/blog/a.php?a=abc

Below is my .htaccess file

RewriteEngine On
RewriteBase /
RewriteRule ^blog/(.*)$ blog/a.php?a=$1 [R=301,L]

What am i doing wrong ?

Answer 1

Try:

RewriteRule ^blog/(.*)/?$ blog/a.php?a=$1

Instead of:

RewriteRule ^blog/(.*)$ blog/a.php?a=$1