.htaccess 301重定向Apache

Question

I am really having trouble with this Rewrite Rule

RewriteRule ^index.php?a=profile&u=(.*)$ /profile/$1 [R=301]

I want to make 301 redirect like mysite.com/profile/USERNAME

Answer 1

Querystring is not part of match in RewriteRule, you need to match against %{THE_REQUEST} var in RewriteCond and then use %n to get that match :

This should be your complete htaccess :

RewriteEngine on
RewriteCond %{THE_REQUEST} /index\.php\?a=profile&u=([^\s]+) [NC]
RewriteRule ^ /profile/%1? [L,R]
RewriteRule ^profile/([^/]+)/?$ /index.php?a=profile&u=$1 [NC,L]

Answer 2

Try

RewriteCond %{QUERY_STRING} ^a=profile&u=(.*)$
RewriteRule ^index.php /profile/%1 [L,R]