PHP through the Curl function to obtain data, analog landing, post data

For example, use PHP curl to get web page data:

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$ch =curl_init (); Setting options, including URLs curl_setopt ($ch, Curlopt_url, "http://www.111cn.net"); curl_setopt ($ch, curlopt_returntransfer,1); curl_setopt ($ch, curlopt_header,0); Execute and get the contents of the HTML document $output =curl_exec ($ch); Release Curl handle Curl_close ($ch);

How to submit data using PHP Curl Post

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$url = "http://www.111cn.net/curl_post.php"; $post _data=array ( "Nameuser" => "Syxrrrr", "PW" => "123456" ); $ch =curl_init (); curl_setopt ($ch, Curlopt_url, $url); curl_setopt ($ch, curlopt_returntransfer,1); curl_setopt ($ch, curlopt_post,1); curl_setopt ($ch, Curlopt_postfields, $post _data); $output =curl_exec ($ch); Curl_close ($ch); Echo $output;

Obtain data, simulate landing, post data

The code is as follows

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/********************** Curl Series ***********************/ Get data directly through curl (including post, header, etc.) /* * $url: http if not an array; * $header: Header file * $post: Post mode submit Array form * $cookies: 0 default no cookie,1 for setting, 2 for getting */ Public Function Curl_allinfo ($urls, $header = False, $post = false, $cookies = 0) { $url = Is_array ($urls)? $urls [' 0 ']: $urls; $ch = Curl_init (); curl_setopt ($ch, Curlopt_url, $url); curl_setopt ($ch, Curlopt_returntransfer, 1); Submit with Header if ($header!= FALSE) { curl_setopt ($ch, Curlopt_httpheader, $header); } Post Submission Method if ($post!= FALSE) { curl_setopt ($ch, Curlopt_post, 1); curl_setopt ($ch, Curlopt_postfields, $post); } if ($cookies = = 1) { curl_setopt ($ch, Curlopt_cookiejar, "cookiefile"); }else if ($cookies = = 2) { curl_setopt ($ch, Curlopt_cookiefile, "cookiefile"); } if (Is_array ($urls)) { curl_setopt ($ch, Curlopt_ssl_verifypeer, false); curl_setopt ($ch, Curlopt_ssl_verifyhost, false); } $data = curl_exec ($ch); Curl_close ($ch); return $data; }

Finally attached a mimic search engine spider to crawl the page

The code is as follows

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function Get_web_page ($url) { $options = Array ( Curlopt_returntransfer => True,//Return Web page back page Curlopt_header => false,//No header information returned Curlopt_followlocation => True,//follow redirects Curlopt_encoding => "",//Handle all encodings Curlopt_useragent => "Spider",//Set useragent Curlopt_autoreferer => True,//set Referer on redirect Curlopt_connecttimeout =>,//timeout on connect connection timeout Curlopt_timeout =>,//TIMEOUT on response reply timeout Curlopt_maxredirs =>//stop after redirects ); $ch = Curl_init ($url); Curl_setopt_array ($ch, $options); $content = curl_exec ($ch); $err = Curl_errno ($ch); $errmsg = Curl_error ($ch); $header = Curl_getinfo ($ch); Curl_close ($ch); $header [' errno '] = $err; $header [' errmsg '] = $errmsg; $header [' content '] = $content; return $header; }