get_headers() 在 PHP 中不显示内容编码

Question

我正在使用函数get_headers($url,1)获取网站http://www.sportsmalayalam.com/的标题，输出如下。它没有“Content-Encoding”，但是当我通过 Google Chrome 检查同一网站的标题时，它显示的内容编码为 gzip。

运行时：print_r(get_headers($url,1));

Array ( 
[0] => HTTP/1.1 200 OK 
[1] => Date: Fri, 29 Apr 2016 10:35:20 GMT 
[2] => Content-Type: text/html; charset=UTF-8 
[3] => Connection: close 
[4] => Set-Cookie: __cfduid=d564038ff91bf8887430482dc8a8cf74b1461926119; expires=Sat, 29-Apr-17 10:35:19 GMT; path=/; domain=.sportsmalayalam.com; HttpOnly 
[5] => X-Powered-By: PHP/5.5.9-1ubuntu4.16 
[6] => Set-Cookie: PHPSESSID=empthbjqo968ak1a3cbaa6jr67; path=/ 
[7] => Expires: Thu, 19 Nov 1981 08:52:00 GMT 
[8] => Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 
[9] => Pragma: no-cache 
[10] => Link: ; rel="https://api.w.org/" 
[11] => Link: ; rel=shortlink 
[12] => Vary: Accept-Encoding, Cookie 
[13] => Server: cloudflare-nginx 
[14] => CF-RAY: 29b21b47261e2fab-MAA 
)

来自谷歌浏览器：

Answer 1

比较 Request 标头。 Chrome 可能正在发送一个 Accept-Encoding 标头，说明 gzip 压缩的响应是可以的，而 PHP 不是。因此，服务器的响应不同。