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This article mainly introduces "how to use PHP curl simulation browser to grab website information". In daily operation, I believe many people have doubts about how to use PHP curl simulation browser to grab website information. Xiaobian consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the questions of "how to use PHP curl simulation browser to grab website information". Next, please follow the editor to study!

Official explanation

Curl is a file transfer tool that uses URL syntax to work on the command line. Curl is a file transfer tool that uses URL syntax to work on the command line.

It supports many protocols: FTP, FTPS, HTTP, HTTPS, GOPHER, TELNET, DICT, FILE and LDAP. Curl also supports HTTPS authentication, HTTP POST method, HTTP PUT method, FTP upload, kerberos authentication, HTTP upload, proxy server, cookies, username / password authentication, download file resume at breakpoint

Upload file breakpoint resume, http proxy server pipeline (proxy tunneling), and even it supports IPv6, socks5 proxy server, upload files to FTP server through http proxy server, etc., very powerful.

Curl explanation 1

Application of curl function in PHP

In short, there are four steps.

Curl_init ()

Curl_setopt ()

Curl_exec ()

Curl_close ()

The most important command is curl_setopt ()

A simple example of a post request

Index.php

The copy code is as follows:

The following is a simple example. I casually opened the brotherly company forum, and then simulated the login of the brotherly company forum. If you need to post, the principle is the same. Transfer the page and submit the data.

Pay special attention to the cookie's save directory windows7 must be under. / temp directory, I started to create a new folder, found that the memory is right, but the cookie read is wrong, so it is still in many places

I asked the question, but I didn't answer it correctly. It took several days to save the file to. / temp directory. Remind other friends not to wander around like me.

The copy code is as follows:

At this point, the study on "how to use PHP curl simulation browser to crawl website information" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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