php 获取远程服务器信息 get_headers 的使用

get_headers — 取得服务器响应一个 HTTP 请求所发送的所有标头

$url = 'http://www.girdear.cn';

print_r(get_headers($url));

print_r(get_headers($url, 1));

 

以上例程的输出类似于：

Array

(

    [0] => HTTP/1.1 200 OK

    [1] => Date: Sat, 29 May 2004 12:28:13 GMT

    [2] => Server: Apache/1.3.27 (Unix)  (Red-Hat/Linux)

    [3] => Last-Modified: Wed, 08 Jan 2003 23:11:55 GMT

    [4] => ETag: "3f80f-1b6-3e1cb03b"

    [5] => Accept-Ranges: bytes

    [6] => Content-Length: 438

    [7] => Connection: close

    [8] => Content-Type: text/html

)



Array

(

    [0] => HTTP/1.1 200 OK

    [Date] => Sat, 29 May 2004 12:28:14 GMT

    [Server] => Apache/1.3.27 (Unix)  (Red-Hat/Linux)

    [Last-Modified] => Wed, 08 Jan 2003 23:11:55 GMT

    [ETag] => "3f80f-1b6-3e1cb03b"

    [Accept-Ranges] => bytes

    [Content-Length] => 438

    [Connection] => close

    [Content-Type] => text/html

)