Recently, I want to download some data from a website and find cURL on the Internet. I just want to learn and get it!
CURL's official website is http://curl.haxx.se/, directly download the source code package to compile it, In download contains
Statement: I have translated several untranslated parts of the original post.
---------------------------------------------------- The post starts -------------------------------------------------------
Curl library function in PHP)
Curl_close-
Currently, the most comprehensive CURL Chinese explanation shows that PHP learning should be well mastered. There are many parameters. Most of them are useful. If you have mastered it and regular expressions, you must be a collection expert. First,
Currently, php provides the most comprehensive CURL description in Chinese. In PHP, the CURL Function Library (ClientURLLibraryFunction) curl_close-closes a curl session curl_copy_handle-copies all content of a curl connection resource and the CURL
Provides various official and user-released code examples. For code reference, you are welcome to exchange and learn more about the comprehensive CURL function library Chinese description.
I think the CURL function library more comprehensive Chinese
1, Curl_initRole:Initializes a new session, returning a curl handle for use by the curl_setopt (), curl_exec (), and curl_close () functions.Format: Curl_init ([string $url = NULL])If a parameter $url is provided, the CURLOPT_URL option will be set
First, write a simple crawl page function
Copy Code code as follows:
function Getsources ($URL, $User _agent= ', $Referer _url= ')//crawl a specified page
{
$URL page address that needs to be crawled
$User _agent need to return
Currently, the most comprehensive CURL Chinese explanation shows that PHP learning should be well mastered. There are many parameters. Most of them are useful. If you have mastered it and regular expressions, you must be a collection expert.
First,
Curl usage in php CURL Library Function in PHP)
Curl_close? Close a curl sessionCurl_copy_handle? Copy all content and parameters of a curl connection resourceCurl_errno? Returns a number that contains the current session error message.Curl_error?
Curl Libraries in PHP (Client URL library function)
curl_close-closing a Curl session
curl_copy_handle-Copy all the contents and parameters of a Curl connection resource
curl_errno-returns a numeric number that contains the current session error
Curl function library in PHP (Client URL library function)
Curl_close-closes a Curl session
curl_copy_handle-copies all the contents and parameters of a Curl connection resource
curl_errno-returns a numeric number containing the current session
The following is about the PHP multithreading problem, php pthreads extension and curl_multi_init function, when you encounter such problems will not be solved, see how others are solved.
Windows install PHP Real multi-threaded extension pthreads
PHP can use the file_get_content () function to crawl Web content, but it cannot do more complex processing, such as uploading or downloading files, Cookie manipulation, and so on. And PHP's CURL provides these features.
First, Curl
The phpcurl function is a file transfer tool that uses the URL syntax. it supports FTP, FTPS, httphtppsscpsftptelnetdictfile, and LDAP. Curl supports SSL certificate, HTTPPOST, HTTPPUT, FTP upload, kerberos, HTT-based Upload, proxy, cookie, user +
The phpcurl function is a file transfer tool that uses the URL syntax. it supports FTP, FTPS, httphtppsscpsftptelnetdictfile, and LDAP. Curl supports SSL certificate, HTTPPOST, HTTPPUT, FTP upload, kerberos, HTT-based Upload, proxy, cookie, user +
He Qi:A series of large numbers of data is not hot also want to be a spider crawl of the page, when the spider crawl Peak, response time will be pulled very high.Predecessors did such a thing: The page is divided into 3 pieces, with 3 internal
1.CURL is an open source file Transfer tool that works with URL syntax in the command line mode.2. It is widely used in Unix, multiple Linux distributions, and has a ported version of DOS and Win32, Win64.3. It supports many protocols: FTP, FTPS,
curl_setopt--Sets an option for the curl callDescribe BOOL curl_setopt (INT-ch, string option, mixed value) The curl_setopt () function sets the option for a curl session. The option parameter is the setting you want, and value is the values
When using curl in PHP, you must first open Extension=php_curl.dll in front of the php.ini; go, Curl is a built-in browser in PHP, it can imitate the user browsing information for web browsing, and so on, see an example, the code is as
The phpcurl function is a file transfer tool that uses the URL syntax. it supports FTP, FTPS, httphtppsscpsftptelnetdictfile, and LDAP. Curl supports SSL certificate, HTTPPOST, HTTPPUT, FTP upload, and simulated browser using k php curl function
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.