shooting’s sky

简单的一个函数：get_header($URL)

get_headers — Fetches all the headers sent by the server in response to a HTTP request

  抓取服务器端响应http请求发送的头信息

<?php

$url = ‘http://www.sina.com’;

echo “<pre>”;

print_r(get_headers($url));

print_r(get_headers($url, 1));

echo “</pre>”;

?>

返回结果

Array(    

[0] => HTTP/1.0 200 OK    

[1] => Date: Sun, 09 Dec 2007 13:43:55 GMT    

[2] => Server: Apache/2.0.54 (Unix)    

[3] => Last-Modified: Sun, 09 Dec 2007 13:42:52 GMT    

[4] => ETag: “86f1a9-4b613-a7f8ef00″    

[5] => Accept-Ranges: bytes    

[6] => X-Powered-By: mod_xlayout_jh/0.0.1vhs.markII.remix    

[7] => Cache-Control: max-age=60    

[8] => Expires: Sun, 09 Dec 2007 13:44:55 GMT    

[9] => Vary: Accept-Encoding     [10] => Content-Type: text/html    

[11] => Age: 58    

[12] => X-Cache: HIT from xa-174.sina.com.cn    

[13] => Connection: close)

 

Array(    

[0] => HTTP/1.0 200 OK    

[Date] => Sun, 09 Dec 2007 13:47:44 GMT   

[Server] => Apache/2.0.54 (Unix)    

[Last-Modified] => Sun, 09 Dec 2007 13:42:52 GMT    

[ETag] => “86f1a9-4b613-a7f8ef00″    

[Accept-Ranges] => bytes    

[X-Powered-By] => mod_xlayout_jh/0.0.1vhs.markII.remix    

[Cache-Control] => max-age=60    

[Expires] => Sun, 09 Dec 2007 13:48:44 GMT    

[Vary] => Accept-Encoding    

[Content-Type] => text/html    

[X-Cache] => MISS from xa-172.sina.com.cn    

[Connection] => close)