根域上的htaccess错误，需要一些自定义规则

Question

我的服务器上有以下.htaccess文件，并且在多语言部分中，该网站在除根目录之外的所有页面上都能正常运行。

获取：ROOT_DOMAIN //？lang = zh-CN

期望：ROOT_DOMAIN / zh /

我该如何实现？

RewriteEngine On
RewriteBase /

## hide .php extension snippet

# To externally redirect /dir/foo.php to /dir/foo
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s([^.]+)\.php [NC]
RewriteRule ^ %1/ [R,L]

# add a trailing slash    
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !/$
RewriteRule . %{REQUEST_URI}/ [L,R=301]

# To internally forward /dir/foo to /dir/foo.php
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteRule ^(.*?)/?$ $1.php [L]

RewriteRule ^(payments)($|/) - [L]
RewriteRule ^(fr|pt|es|it|de|ru)/(.*?)/?$ $2.php?lang=$1 [QSA,L]