PHP如何设置头信息

<?php
/**
Accept application/json
Accept-Encoding gzip, deflate
Accept-Language zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3
Connection keep-alive
Cookie mzys_is_frist_access=1; mzys_c_uuid=guest_215cbc0979b5bd2; mzys_access20130610=1; mzys_qz_uuid=d6d4640f93cb7a4; CNZZDATA30040410=cnzz_eid%3D1008690174-1370849811-http%253A%252F%252Fm.120ask.com%26ntime%3D1370855345%26cnzz_a%3D43%26retime%3D1370855484258%26sin%3D%26ltime%3D1370855484258%26rtime%3D0; PHPSESSID=4kacoqfe4ae33km3h0l2imjfd6
Host m.120ask.com
Referer http://m.120ask.com/health/show?page=2&id=84882&type=17
User-Agent Mozilla/5.0 (Windows NT 6.1; rv:21.0) Gecko/20100101 Firefox/21.0
X-Requested-With XMLHttpRequest
 */
$hdrs = array(
  'http' =>array('header' => 
   "Accept: application/json\r\n" .
   "Accept-Encoding: gzip, deflate\r\n" .
   "Accept-Language: zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3\r\n" .
   "Accept-Encoding: gzip, deflate\r\n" .
   "Connection: keep-alive\r\n" .
   "Cookie: mzys_is_frist_access=1; mzys_c_uuid=guest_215cbc0979b5bd2; mzys_access20130610=1; mzys_qz_uuid=d6d4640f93cb7a4; CNZZDATA30040410=cnzz_eid%3D1008690174-1370849811-http%253A%252F%252Fm.120ask.com%26ntime%3D1370855345%26cnzz_a%3D43%26retime%3D1370855484258%26sin%3D%26ltime%3D1370855484258%26rtime%3D0; PHPSESSID=4kacoqfe4ae33km3h0l2imjfd6\r\n" .
   "Host: m.120ask.com\r\n" .
   "Referer: http://m.120ask.com/health/show?page=2&id=84882&type=17\r\n" .
   "User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:21.0) Gecko/20100101 Firefox/21.0\r\n" .
   "X-Requested-With: XMLHttpRequest",
   'timeout'=>2
  ),
);
$context = stream_context_create($hdrs);
//方式1
// $fp = fopen("http://m.120ask.com/health/show?page=2&id=84882&type=17", 'r', false, $context);
// fpassthru($fp);
// fclose($fp);
//方式2
//echo file_get_contents('http://m.120ask.com/health/show?page=2&id=84882&type=17', 0, $context);