Table of Contents
回复讨论(解决方案)
Home Backend Development PHP Tutorial 求组socket fsockopen 的问题

求组socket fsockopen 的问题

Jun 23, 2016 pm 02:20 PM

curl socket fsockopen

socket fsockopen curl 这些个东西要怎么理解?他们之间有什么联系,有什么区别吗?还有那些参数要怎么理解啊?有什么好的资料吗?

回复讨论(解决方案)

socket是一种连接的方式,比如用来连接接口。
  如:

       $fp= @fsockopen('地址','端口');      $command=""  //发送的数据,你想要发什么数据,就在这里写,可以拼接起来。       if (!fwrite($fp, $command)) {exit('error');}      $response='';//结果集     		while(!feof($fp)) {			$str = fgets($fp, 1024);//读取每行数据			$response .= $str;    //读取的每行给结果集		}      echo $response;//输出结果      
Copy after login


curl是可以通过url进行传输的,通常用这个来模拟某种动作,比如:模拟登录。

可详细点不啊?

socket你可以理解是一种通信。
fsockopen('连接地址','端口号','错误代号','错误信息','超时');参数就是连接的地址

关于socket和curl的联系,就扯不上什么关系了

而curl的理解,比如:

   通常我们在请求接口的时候,对方的数据可能都已经经过了多重的加密。
   那么我们请求的时候,我们就得使用curl进行加密传输,因为通常的情况下我们是无法得知数据加密后的内容。

socket 是 TCP/IP 通讯协议的工具库,用于简化 TCP/IP 通讯程序的书写
fsockopen 是 socket 简易包装
curl 是 TCP/IP 通讯协议的又一种工具库

mg.bbs.csdn.net/upload/201308/28/1377657763_543717.jpg][/img],楼上说的我也是清楚的,但是具体的用法和里面的参数不是很明白,这些都是规定的么?

$out = "GET $path HTTP/1.1\r\n";
$out .= "Accept: */*\r\n";
$out .= "Referer: ".$siteurl."\r\n";
$out .= "Accept-Language: zh-cn\r\n";
$out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";
$out .= "Host: $host\r\n";
$out .= "Connection: Close\r\n";
$out .= "Cookie: $cookie\r\n\r\n"; 比如像这种

socket可以跟服务器(游戏,email,桌面软件)的交互,传递数据之类的!

socket是抽象的套接字,不属于PHP之类语言的层面
fsocket是PHP对socket的封装,C里面也有类似的封装
curl好像是PHP专属的一个类库,专门简化socket操作的,很多主机商屏蔽掉fsocket,但是支持curl,百度BAE也是这么干的

------------------------------------------------------AutoCSDN签名档------------------------------------------------------

码农场??码农播种代码、放牧思想的农场! 

$out = "GET $path HTTP/1.1\r\n";
$out .= "Accept: */*\r\n";
$out .= "Referer: ".$siteurl."\r\n";
$out .= "Accept-Language: zh-cn\r\n";
$out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";
$out .= "Host: $host\r\n";
$out .= "Connection: Close\r\n";
$out .= "Cookie: $cookie\r\n\r\n"; 比如像这种

这些请求头,不是规定的,关键看你的需求。


$out = "GET $path HTTP/1.1\r\n";
$out .= "Accept: */*\r\n";
$out .= "Referer: ".$siteurl."\r\n";
$out .= "Accept-Language: zh-cn\r\n";
$out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";
$out .= "Host: $host\r\n";
$out .= "Connection: Close\r\n";
$out .= "Cookie: $cookie\r\n\r\n"; 比如像这种

这些请求头,不是规定的,关键看你的需求。  这种需求因什么而来?

协议
既然是通讯,自然要有一个约定。值就是协议

不然我说俄语你说英语,怎么也说不到一起去的

socket 水泥、沙子,底层的东西
fsockopen 水泥预制件,可以用来搭房子
curl 毛坯房,自己装修一下就能住了

水泥、沙子不但可以修房子,还能修路、修桥、大型雕塑。socket也是,不但可以用于网页传输,还能传送其他东西,可以做聊天工具、下载器、ftp……几乎可以用网络传送的东西都能用它写出来,当然,需要掌握的知识也不少,例如建墙你就要知道怎么让墙笔直、不易倒、防冻、隔热等等都需要自己学

预制件你就不用管它是否笔直、结构如何、怎样隔热了,这些造的人帮你想好了,你想的就是怎样搭成你想要的形状就行。fsockopen就是,你可以忽略socket里面的creat, connect, send, recv等等函数的用法,直接就open了

毛坯房就更简单了,你装修就能住,最简单刷墙就行了,但想更舒适,就用更多更好的装修材料吧,但缺点就是??这是房子,你不能把它改造为渡河、交通的用途,只能住
curl也一样,各种连接什么的都帮你做好了,底层容错处理也做了,你就传参数给它就能得到你想要的结果,但缺点就是只能http / ftp,你想把它改成聊天工具,那就难难难了

socket 水泥、沙子,底层的东西
fsockopen 水泥预制件,可以用来搭房子
curl 毛坯房,自己装修一下就能住了

水泥、沙子不但可以修房子,还能修路、修桥、大型雕塑。socket也是,不但可以用于网页传输,还能传送其他东西,可以做聊天工具、下载器、ftp……几乎可以用网络传送的东西都能用它写出来,当然,需要掌握的知识也不少,例如建墙你就要知道怎么让墙笔直、不易倒、防冻、隔热等等都需要自己学

预制件你就不用管它是否笔直、结构如何、怎样隔热了,这些造的人帮你想好了,你想的就是怎样搭成你想要的形状就行。fsockopen就是,你可以忽略socket里面的creat, connect, send, recv等等函数的用法,直接就open了

毛坯房就更简单了,你装修就能住,最简单刷墙就行了,但想更舒适,就用更多更好的装修材料吧,但缺点就是??这是房子,你不能把它改造为渡河、交通的用途,只能住
curl也一样,各种连接什么的都帮你做好了,底层容错处理也做了,你就传参数给它就能得到你想要的结果,但缺点就是只能http / ftp,你想把它改成聊天工具,那就难难难了   这个真的很形象,谢谢啊

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 AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

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)

Hot Topics

Java Tutorial
1664
14
PHP Tutorial
1266
29
C# Tutorial
1239
24
PHP and Python: Comparing Two Popular Programming Languages PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1? Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1? Apr 17, 2025 am 12:06 AM

In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values ​​to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

PHP in Action: Real-World Examples and Applications PHP in Action: Real-World Examples and Applications Apr 14, 2025 am 12:19 AM

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

What are HTTP request methods (GET, POST, PUT, DELETE, etc.) and when should each be used? What are HTTP request methods (GET, POST, PUT, DELETE, etc.) and when should each be used? Apr 09, 2025 am 12:09 AM

HTTP request methods include GET, POST, PUT and DELETE, which are used to obtain, submit, update and delete resources respectively. 1. The GET method is used to obtain resources and is suitable for read operations. 2. The POST method is used to submit data and is often used to create new resources. 3. The PUT method is used to update resources and is suitable for complete updates. 4. The DELETE method is used to delete resources and is suitable for deletion operations.

PHP: A Key Language for Web Development PHP: A Key Language for Web Development Apr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

Explain the difference between self::, parent::, and static:: in PHP OOP. Explain the difference between self::, parent::, and static:: in PHP OOP. Apr 09, 2025 am 12:04 AM

In PHPOOP, self:: refers to the current class, parent:: refers to the parent class, static:: is used for late static binding. 1.self:: is used for static method and constant calls, but does not support late static binding. 2.parent:: is used for subclasses to call parent class methods, and private methods cannot be accessed. 3.static:: supports late static binding, suitable for inheritance and polymorphism, but may affect the readability of the code.

How does PHP handle file uploads securely? How does PHP handle file uploads securely? Apr 10, 2025 am 09:37 AM

PHP handles file uploads through the $\_FILES variable. The methods to ensure security include: 1. Check upload errors, 2. Verify file type and size, 3. Prevent file overwriting, 4. Move files to a permanent storage location.

How does PHP type hinting work, including scalar types, return types, union types, and nullable types? How does PHP type hinting work, including scalar types, return types, union types, and nullable types? Apr 17, 2025 am 12:25 AM

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values ​​and handle functions that may return null values.

See all articles