设置请求服务器的头信息可以用fsockopen,curl组件,header函数只能用来设置客户端响应的头信息，不能设置服务器的头信息.

例子;

一.header函数的用法

header('WWW-Authenticate: Negotiate');

header('User-Agent:Mozilla/5.0);

多个直接要写多个header,不可以连接在一起

二.fsockopen函数的用法

1.php

<?php
$fp = fsockopen("test.com", 80, $errno, $errstr, 30);
if (!$fp) {
    echo "$errstr ($errno)<br />\n";
} else {
    $out = "GET /2.php HTTP/1.1\r\n";
    $out .= "Host: test.com\r\n";

$out .= "name:longqiqi\r\n";
    $out .= "Connection: Close\r\n\r\n";

fwrite($fp, $out);
    while (!feof($fp)) {
        echo fgets($fp, 128);
    }
    fclose($fp);
}
?>

2.php

print_r(getallheaders());

会返回自己设置请求的头信息

三.curl组件的使用

1.php

<?php

function FormatHeader($url, $myIp = null,$xml = null)

{

// 解悉url

$temp = parse_url($url);

$query = isset($temp['query']) ? $temp['query'] : '';

$path = isset($temp['path']) ? $temp['path'] : '/';

$header = array (

"POST {$path}?{$query} HTTP/1.1",

"Host: {$temp['host']}",

"Content-Type: text/xml; charset=utf-8",

'Accept: */*',

"Referer: http://{$temp['host']}/",

'User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)',

"X-Forwarded-For: {$myIp}",

"Content-length: 380",

"Connection: Close"

);

return $header;

}

$interface = 'http://test.com/2.php';

$header = FormatHeader($interface,'10.1.11.1');

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $interface);

curl_setopt($ch, CURLOPT_HTTPHEADER, $header);  //设置头信息的地方

curl_setopt($ch, CURLOPT_HEADER, 0);    //不取得返回头信息

curl_setopt($ch, CURLOPT_TIMEOUT, 5);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$result = curl_exec($ch);

var_dump($result);

?>

2.php

print_r(getallheaders());

会返回自己设置请求的头信息

#Php