PHP Curl Crawl Ajax asynchronous content

In fact, grab Ajax asynchronous content of the page and catch the ordinary page is not very different. Ajax simply makes an asynchronous HTTP request, as long as it uses firebug-like tools to find the requested backend service URL and value-passing parameters, and then fetches the URL parameters.

using Firebug's Network Tools

If you are grabbing a page, the data that is not displayed in the content is a bunch of JS code.

Code

$cookie _file=Tempnam('./temp ', ' Cookie ');$ch=curl_init ();$url 1= "Http://www.cdut.edu.cn/default.html"; curl_setopt ($ch, Curlopt_url,$url 1); curl_setopt ($ch, Curlopt_http_version,curl_http_version_1_1); curl_setopt ($ch, curlopt_header,0); curl_setopt ($ch, curlopt_returntransfer,1); curl_setopt ($ch, curlopt_followlocation,1); curl_setopt ($ch, curlopt_encoding, ' gzip ');//Add gzip parse//Set file to save cookie information after connection endscurl_setopt ($ch, Curlopt_cookiejar,$cookie _file);$content=curl_exec ($ch); Curl_close ($ch);$ch 3=curl_init ();$url 3= "Http://www.cdut.edu.cn/xww/dwr/call/plaincall/portalAjax.getNewsXml.dwr";$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 "; curl_setopt ($ch 3, Curlopt_url,$url 3); curl_setopt ($ch 3, curlopt_post,1); curl_setopt ($ch 3, Curlopt_postfields,$curlPost);//set up files to save cookie information after connection endscurl_setopt ($ch 3, Curlopt_cookiefile,$cookie _file); $content 1=curl_exec ($ch 3); Curl_close ($ch 3);

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PHP Curl Crawl Ajax asynchronous content