php - Rewrite URL for nginx with language option -

i have url www.foo.com has 2 languages en , cn. have pages such about.php, product.php, etc.

i want url www.foo.com/about.php?lang=cn written www.foo.com/cn/about , same way, www.foo.com/en/product, etc.

i using nginx serving php website.

i able hide .php file

location / {     try_files $uri $uri/ $uri.php?$query_string; } 

i tried writing this

location / {     try_files $uri $uri/$query_string/ $uri.php?$query_string; } 

but somehow doesn't seem work.

add .htaccess file in folder.

.htaccess file:

rewriteengine on    # turn on rewriting engine  rewriterule    ^([a-za-z0-9-]+)/about/?$    about.php?lang=$1    [nc,l] rewriterule    ^([a-za-z0-9-]+)/product/?$    product.php?lang=$1    [nc,l]