Home Backend Development PHP Tutorial How to set header information and get return header information in PHP_php tips

How to set header information and get return header information in PHP_php tips

May 16, 2016 pm 07:59 PM
php set up

The example in this article describes how to set header information and obtain return header information in PHP. Share it with everyone for your reference, the details are as follows:

To set the header information of the request, we can use the header function, fsockopen, curl, etc. This article mainly talks about using curl to set the header information and obtain the returned header information.

1. The requester sets its own header information, header.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://localhost/test/header2.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);
?>

Copy after login

2. The requested party obtains the header information, header2.php

<?php
print_r($_SERVER); //头信息里面有内容绝大部分是放在系统变量里面的
?>

Copy after login

3. Take a look at the result of header.php request

string(1045) "Array
(
[HTTP_HOST] => localhost
[CONTENT_TYPE] => text/xml; charset=utf-8
[HTTP_ACCEPT] => */*
[HTTP_REFERER] => http://localhost/
[HTTP_USER_AGENT] => Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
[HTTP_X_FORWARDED_FOR] => 10.1.11.1
[CONTENT_LENGTH] => 380
[PATH] => /usr/local/bin:/usr/bin:/bin
[SERVER_SIGNATURE] => <address>Apache/2.2.16 (Ubuntu) Server at localhost Port 80</address>
。。。。。。。。。。。。。。。。。。。。。。。。。。。。
)

Copy after login

We can clearly see that the above ones are the header information I set.

4. Obtain the returned header information

Copy code The code is as follows:
curl_setopt($ch, CURLOPT_HEADER, 1); //Get the return header Information

We set CURLOPT_HEADER to 1, and in the obtained results, there will be this information in front of the display array

string(1239) "HTTP/1.1 200 OK
Date: Fri, 27 May 2011 01:57:57 GMT
Server: Apache/2.2.16 (Ubuntu)
X-Powered-By: PHP/5.3.3-1ubuntu9.5
Vary: Accept-Encoding
Content-Length: 1045
Content-Type: text/html
Array
(
 [HTTP_HOST] => localhost
 [CONTENT_TYPE] => text/xml; charset=utf-8
 [HTTP_ACCEPT] => */*

Copy after login

5. The $_SERVER header information cannot be obtained

Modify header.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: " . strlen($xml) ."\r\n\r\n" .$xml, //修改1
 "Connection: Close"
 );
 return $header;
}
$xml = '<?xml version="1.0" encoding="utf-8"?> //修改2
 <profile>
 <sha1>adsfadsf</sha1>
 <user_id>asdfasdf</user_id>
 <album_id>asdf</album_id>
 <album_name>asdf</album_name>
 <tags>asdfasd</tags>
 <title>asdfasdf</title>
 <content>asdfadsf</content>
 <type>asdfasdf</type>
 <copyright>asdfasdf</copyright>
 </profile>';
$interface = 'http://localhost/test/header2.php';
$header = FormatHeader($interface,'10.1.11.1',$xml); //修改3
$ch = curl_init();
curl_setopt($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);
?>

Copy after login

If this is the case, in header2.php, printing $_SERVER cannot print out the xml in the header information. At this time, we add the following two lines

after header2.php
$raw_post_data = file_get_contents('php://input', 'r');
var_dump($raw_post_data);

Copy after login

In this way, you can get the content of $xml, and only the content of $xml will be fetched.

Readers who are interested in more PHP-related content can check out the special topics of this site: "Introduction Tutorial on PHP Basic Syntax", "Introduction Tutorial on PHP Object-Oriented Programming" and " php curl usage summary

I hope this article will be helpful to everyone in PHP programming.

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot Article Tags

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian

CakePHP Date and Time CakePHP Date and Time Sep 10, 2024 pm 05:27 PM

CakePHP Date and Time

CakePHP Project Configuration CakePHP Project Configuration Sep 10, 2024 pm 05:25 PM

CakePHP Project Configuration

CakePHP File upload CakePHP File upload Sep 10, 2024 pm 05:27 PM

CakePHP File upload

CakePHP Routing CakePHP Routing Sep 10, 2024 pm 05:25 PM

CakePHP Routing

Discuss CakePHP Discuss CakePHP Sep 10, 2024 pm 05:28 PM

Discuss CakePHP

CakePHP Quick Guide CakePHP Quick Guide Sep 10, 2024 pm 05:27 PM

CakePHP Quick Guide

How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

How To Set Up Visual Studio Code (VS Code) for PHP Development

See all articles