将.html扩展名重定向到404错误页面nginx

Question

如何将.html扩展网址重定向到404错误页面，例如（example.com/this.html到404页面。）有人可以帮助我吗

我当前的配置文件：

$array = array (); //something goes in here

function del_space(array $a){
foreach($a as $key => $value){
    preg_replace("/; +/", "", $value); 
    }
}

$no_space = array_map("del_space", $array);