This question has been answered by an8hub. See the first response.
location ~ \.php$ { try_files $uri =404; fastcgi_split_path_info ^(.+\.php)(.*)$; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; fastcgi_ignore_client_abort on; fastcgi_param SERVER_NAME $http_host; }