PHP Curl crawls Ajax asynchronous content, Curlajax
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
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);
I'm the dividing line of the king of the Land Tiger.
PHP Curl does not respond after fetching AJAX data for some time
Attempt to forge header information: Host, Referer, user-agent, etc.
PHP uses curl to crawl the content of a site is rejected
It's just written. Hope Useful
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