PHP经典抓取网络数据方法 index.php forum.php phpno
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2022-04-10 18:16:10
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1、file_get_contents
4、用fsocketopen打开链接
以post方式获取完整数据(包括header和body)
以get的方式获取数据
$url = 'blog.csdn.net/guugle2010'; $html = file_get_contents($url); echo $html;
以post方式获取数据
$data = array( 'name' => 'guugle', 'blog' => 'blog.csdn.net/guugle2010' ); $data = http_build_query($data); $options = array( 'http' => array( 'method' => 'POST', 'header' => 'Content-type:application/x-www-form-urlencode', 'content' => $data ) ); $url = "http://localhost/test.php"; $context = stream_context_create($options); $result = file_get_contents($url, false, $context); echo $result;2、fopen方式
$url = 'http://blog.csdn.net/guugle2010'; $handle = fopen($url, r); $html = ''; while(!feof($handle)){ $html .= fgets($handle); } echo $html; fclose($handle);3、curl库,需要打开curl扩展
$url = 'http://blog.csdn.net/guugle2010'; $ch = curl_init(); $timeout = 5; curl_setopt ($ch, CURLOPT_URL, $url); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout); $file_contents = curl_exec($ch); curl_close($ch); echo $file_contents;
4、用fsocketopen打开链接
以get的方式获取完整的数据(包括header和body)
$url = 'http://blog.csdn.net/guugle2010'; function get_url($url,$cookie=false) { $url = parse_url($url); $query = $url['path']."?".$url['query']; echo "Query:".$query; $fp = fsockopen( $url['host'], $url['port']?$url['port']:80 , $errno, $errstr, 30); if (!$fp) { return false; } else { $request = "GET $query HTTP/1.1\r\n"; $request .= "Host: $url[host]\r\n"; $request .= "Connection: Close\r\n"; if($cookie) $request.="Cookie: $cookie\n"; $request.="\r\n"; fwrite($fp,$request); $result = ''; while(!feof($fp)) { $result .= @fgets($fp, 1024); } fclose($fp); return $result; } } //获取url的html部分,去掉header function GetUrlHTML($url,$cookie=false) { $rowdata = get_url($url,$cookie); if($rowdata) { $body= stristr($rowdata,"\r\n\r\n"); $body=substr($body,4,strlen($body)); return $body; } return false; } echo get_url($url); echo GetUrlHTML($url);
以post方式获取完整数据(包括header和body)
$url = 'http://blog.csdn.net/guugle2010'; function HTTP_Post($URL,$data,$cookie, $referer="") { // parsing the given URL $URL_Info=parse_url($URL); // Building referrer if($referer=="") // if not given use this script as referrer $referer="blog.csdn.net"; // making string from $data foreach($data as $key=> $value) $values[]="$key=".urlencode($value); $data_string=implode("&",$values); // Find out which port is needed - if not given use standard (=80) if(!isset($URL_Info["port"])) $URL_Info["port"]=80; $request = ''; // building POST-request: $request.="POST ".$URL_Info["path"]." HTTP/1.1\n"; $request.="Host: ".$URL_Info["host"]."\n"; $request.="Referer: $referer\n"; $request.="Content-type: application/x-www-form-urlencoded\n"; $request.="Content-length: ".strlen($data_string)."\n"; $request.="Connection: close\n"; $request.="Cookie: $cookie\n"; $request.="\n"; $request.=$data_string."\n"; $fp = fsockopen($URL_Info["host"],$URL_Info["port"]); fputs($fp, $request); $result = ''; while(!feof($fp)) { $result .= fgets($fp, 1024); } fclose($fp); return $result; } $data = array( 'site'=>'blog.csdn.net/guugle2010', 'name'=>'guugle'); $cookie = ''; $referer = 'http://blog.csdn.net/'; echo HTTP_Post($url, $data, $cookie, $referer);
以上就介绍了PHP经典抓取网络数据方法,包括了php,网络方面的内容,希望对PHP教程有兴趣的朋友有所帮助。
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