WordPress dirname1 installation as http://localhost/dirname1/

Example URL http://localhost/dirname1/mypost.php is working

By using the setting bellow;

location ~ .php$ {
      try_files $uri $uri/ /dirname1/index.php?$args;
}

I want to run WordPress installation of dirname2 also, but I am not able to run both same time

WordPress dirname2 installation as http://localhost/dirname2/

Example URL http://localhost/dirname2/mypost.php is not working

for that I tried setting bellow for .php wordpress url

location ~ .php$ {
    try_files $uri $uri/ wordpress user;
}

For Referance-> Check at Example for WordPress and Joomla: http://nginx.org/en/docs/http/ngx_http_core_module.html#location