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This article mainly introduces what is the difference between socket and curl in php. It is very detailed and has certain reference value. Friends who are interested must finish reading it.

1. Socket is a data structure that can be used to talk between the server and the client.

2. Curl is a rule that uses URL syntax to transfer files and data, and supports many protocols, such as FTP, HTTP, TELNET and so on.

Socket:

PHP uses berkely's socket library to create his connection. Socket is a data result, and you can use this socket to open a session between the server and the client. The server is listening all the time. When a client connects to the server, he opens a port that the server is listening to to have a conversation. At this point, the server receives the connection request from the client, and a loop is made. Now the client can send information to the server, and the server can also send information to the client.

CURL

CURL is a tool that uses URL syntax rules to transfer files and data. He supports HTTP, FTP, TELNET.

Why use cURL?

Because, if we sometimes want to have flexible access to content on a web page, such as dealing with coockies, validation, form submission, file upload, and so on. Then you need to use cURL. It is said that php has a powerful cURL library (because I don't know what the power is, so I use "said" laughter).

These are all the contents of this article entitled "what's the difference between socket and curl in php". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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