PHP Curl, Fsockopen function

Here is a direct example of using curl and fsockopen, which you can use as an example, or directly as a packaged function.

The Curl function uses code

 Public functionxcurl($url,$ref=null,$post=array(),$ UA="mozilla/5.0 (X11; Linux x86_64; Rv:2.2a1pre) gecko/20110324 firefox/4.2a1pre ",$print=false) {$ch= Curl_init (); curl_setopt ($ch, Curlopt_autoreferer,true);if(!Empty($ref) {curl_setopt ($ch, Curlopt_referer,$ref); } curl_setopt ($ch, Curlopt_url,$url); curl_setopt ($ch, Curlopt_header,0); curl_setopt ($ch, Curlopt_followlocation,1); curl_setopt ($ch, Curlopt_returntransfer,1);if(!Empty($ua) {curl_setopt ($ch, Curlopt_useragent,$ua); }if(Count ($post) >0) {curl_setopt ($ch, Curlopt_post,1); curl_setopt ($ch, Curlopt_postfields,$post); }$output= Curl_exec ($ch); Curl_close ($ch);if($print) {Print($output); }Else{return$output; }}

The Fsockopen function uses code:

 Public functioncurl_request_async($url, $params, $type =' GET ') {//Set Referer$referer=$_server[' Http_host '];foreach($params as$key= &$val) {if(Is_array ($val))$val= Implode (',',$val);$post _params[] =$key.'='. UrlEncode ($val); }$post _string= Implode (' & ',$post _params);$parts=parse_url ($url); @$fp= Fsockopen ($parts[' Host '],isset($parts[' Port '])?$parts[' Port ']: the,$errno,$errstr,2);if(!$fp){Echo"$errstr ($errno)
\ n "; }Else{if(' GET '==$type)$parts[' path '] .='?'.$post _string;$out="$type".$parts[' path ']."http/1.1\r\n";$out.="Host:".$parts[' Host ']."\ r \ n";$out.="Referer:".$referer."\ r \ n";$out.="content-type:application/x-www-form-urlencoded\r\n";$out.="connection:close\r\n\r\n";//Data goes in the request body for a POST requestif(' POST '==$type&&isset($post _string))$out.=$post _string; Fwrite$fp,$out); Fclose$fp); }    }

Just from the function above, the difference between the use is that the important point is:
Curl requests that a URL wait for the result to return, and Fsockopen does not need to return, and continues executing the code after the request is sent. Unless you use Fsockopen, you need to print a request to return the results.

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The above describes the PHP curl, Fsockopen function, including the aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

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