nginx php file not found

/usr/local/nginx/conf/nginx.conf

 location ~ \.php$ {

            root           html;

            fastcgi_pass   127.0.0.1:9000;

            fastcgi_index  index.php;

    #找到fastcgi_param改成如下所示

            fastcgi_param  SCRIPT_FILENAME  /usr/local/nginx/html$fastcgi_script_name;

            include        fastcgi_params;

}