您可以使用一个新的规则如下：

You can use a new rule for this:

Options +FollowSymlinks -MultiViews
RewriteEngine On
RewriteBase /

RewriteCond %{HTTP_USER_AGENT} !iphone [NC]
RewriteRule ^m/(.+)$ /d/#$1 [R=302,NE,L,NC]

RewriteRule ^[dm]/(.+)$ /m/#$1 [R=302,NE,L,NC]

## hide .php extension
RewriteCond %{THE_REQUEST} \s/+common_([^.]+)\.php[\s?] [NC]
RewriteRule ^ %1 [R=302,L,NE]

## To internally forward
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{DOCUMENT_ROOT}/common_$1.php -f
RewriteRule ^(.+?)/?$ common_$1.php [L]