PHP Curl Crawl Ajax Asynchronous content sample

Source: Internet
Author: User
Tags curl http request

Actually grasping Ajax asynchronous content page and grasping ordinary page difference is not big. Ajax is simply an asynchronous HTTP request that uses a firebug-like tool to find the requested backend service URL and the parameters of the pass value, and then crawl the URL pass parameter.

Using Firebug's Network Tools

If the page is captured, the content is not displayed in the data, is a bunch of JS code.

Code

01$cookie_file=tempnam ('./temp ', ' Cookie ');

02$ch = Curl_init ();

03$URL1 = "http://www.cdut.edu.cn/default.html";

04curl_setopt ($ch, Curlopt_url, $url 1);

05curl_setopt ($ch, curlopt_http_version,curl_http_version_1_1);

06curl_setopt ($ch, curlopt_header,0);

07curl_setopt ($ch, curlopt_returntransfer,1);

08curl_setopt ($ch, curlopt_followlocation,1);

09curl_setopt ($ch, curlopt_encoding, ' gzip '); Add gzip resolution

10//set up a file that stores cookie information after the connection ends

11curl_setopt ($ch, Curlopt_cookiejar, $cookie _file);

12$content=curl_exec ($ch);

13

14curl_close ($ch);

15

16$ch3 = Curl_init ();

17$URL3 = "Http://www.cdut.edu.cn/xww/dwr/call/plaincall/portalAjax.getNewsXml.dwr";

18$curlpost = "callcount=1&page=/xww/type/1000020118.html&httpsessionid=

12a9b726e6a2d4d3b09de7952b2f282c&scriptsessionid=295315b4b4141b09da888d3a3adb8faa658&c0-scriptname= Portalajax&c0-methodname=getnewsxml&c0-id=0&c0-param0=string:10000201&c0-param1=string : 1000020118&c0-param2=string:news_&c0-param3=number:5969&c0-param4=number:1&c0-param5=null: Null&c0-param6=null:null&batchid=0 ";

19curl_setopt ($ch 3,curlopt_url, $url 3);

20curl_setopt ($ch 3,curlopt_post,1);

21curl_setopt ($ch 3,curlopt_postfields, $curlPost);

22

23//set up a file that stores cookie information after the connection ends

24curl_setopt ($ch 3,curlopt_cookiefile, $cookie _file);

25$content1=curl_exec ($ch 3);

26curl_close ($ch 3);

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