nginx不能运行php文件的问题

location ~ \.php$ {                     
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            #fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
            fastcgi_param SCRIPT_FILENAME $document_root/$fastcgi_script_name;
            include        fastcgi_params;
        }