php最短的HTTP响应代码

刚刚发现在CodeProject给我推送了一篇文章叫：the Shortest PHP code for Returning  HTTP Response Code 翻译过来就是（PHP最短的HTTP响应代码）当中作者用了13个例子来找最短的那个HTTP响应代码，其中有五个是没有成功的，下面是我在这篇文章中截到的内容：

header("HTTP/1.1 404");   //works
header("HTTP/1 404");     //works
header("HTTP/ 404");      //works
header("HTTP 404");       //doesn‘t work, returns 200 OK
header("HTTP/1.1",0,404); //doesn‘t work, returns 200 OK
header("HTTP/1",0,404);   //doesn‘t work, returns 200 OK
header("HTTP/",0,404);    //doesn‘t work, returns 200 OK
header("HTTP",0,404);     //works
header("",0,404);         //doesn‘t work, returns 200 OK
header("/",0,404);        //works
header("1",0,404);        //works
header(1,0,404);          //works
header(0,0,404);          //works

So Shortest Code is:

header(0,0,404);