How to set request header information in php

How to set request header information in php: 1. Use the header function to set the request header information; 2. Set the request header information through the fsockopen function; 3. Set the request header information by using the curl component.

The operating environment of this article: Windows 7 system, PHP version 7.1, DELL G3 computer

How to set request header information in php?

php sets http request header information and response header information

You can use fsockopen and curl components to set the header information of the request server. The header function can only be used to set the header information of the client response. , cannot set the header information of the server.

1. Usage of header function

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

Multiple headers need to be written directly and cannot be connected together

2.fsockopen Function usage

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

3.Usage of curl component

1.php

<?php
 
function FormatHeader($url, $myIp = null,$xml = null)
{
 // 解析url
 $temp = parse_url($url);
 
 $query = isset($temp[&#39;query&#39;]) ? $temp[&#39;query&#39;] : &#39;&#39;;
 
 $path = isset($temp[&#39;path&#39;]) ? $temp[&#39;path&#39;] : &#39;/&#39;;
 
 $header = array (
 
 "POST {$path}?{$query} HTTP/1.1",
 
 "Host: {$temp[&#39;host&#39;]}",
 
 "Content-Type: text/xml; charset=utf-8",
 
 &#39;Accept: */*&#39;,
 
 "Referer: http://{$temp[&#39;host&#39;]}/",
 
 &#39;User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)&#39;,
 
 "X-Forwarded-For: {$myIp}",
 
 "Content-length: 380",
 
 "Connection: Close"
 
 );
 return $header;
} 
 
$interface = &#39;http://test.com/2.php&#39;;
 
$header = FormatHeader($interface,&#39;10.1.11.1&#39;);
 
$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());//Will Return the header information of your own set request

Recommended learning: "PHP Video Tutorial"

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