PHP获取HTML网页内容的多种方法（精）

方法1：用file_get_contents以get方式获取内容

<?php $url='http://www.domain.com/?para=123'; $html = file_get_contents($url); echo $html; ?> 

方法2：用file_get_contents函数,以post方式获取url

<?php $url = 'http://www.domain.com/test.php?id=123'; $data = array ('foo' => 'bar'); $data = http_build_query($data); $opts = array ( 'http' => array (    'method' => 'POST',    'header'=> "Content-type: application/x-www-form-urlencoded\r\n" .                      "Content-Length: " . strlen($data) . "\r\n",    'content' => $data) ); $ctx = stream_context_create($opts); $html = @file_get_contents($url,'',$ctx); ?>

如果需要再传递cookie数据,则把

'header'=> "Content-type: application/x-www-form-urlencoded\r\n" .                   "Content-Length: " . strlen($data) . "\r\n",

修改为

'header'=> "Content-type: application/x-www-form-urlencoded\r\n" .                  "Content-Length: " . strlen($data) . "\r\n".                  "cookie:cookie1=c1;cookie2=c2\r\n" ; 

即可。

方法3：用fopen打开url,以get方式获取内容

<?php $fp = fopen($url, 'r'); $header = stream_get_meta_data($fp);//获取报头信息 while(!feof($fp)) { $result .= fgets($fp, 1024); } echo "url header: {$header} <br>": echo "url body: $result"; fclose($fp); ?>

方法4：用fopen打开url,以post方式获取内容

<?php $data = array ('foo2' => 'bar2','foo3'=>'bar3'); $data = http_build_query($data); $opts = array ( 'http' => array ( 'method' => 'POST', 'header'=> "Content-type: application/x-www-form-urlencoded\r\nCookie:cook1=c3;cook2=c4\r\n" . "Content-Length: " . strlen($data) . "\r\n", 'content' => $data) ); $context = stream_context_create($opts); $html = fopen('http://www.test.com/zzzz.php?id=i3&id2=i4','rb' ,false, $context); $w=fread($html,1024); echo $w; ?>

方法5：用fsockopen函数打开url，以get方式获取完整的数据，包括header和body

<?php 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,$request); while(!@feof($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; } ?>

方法6：用fsockopen函数打开url，以POST方式获取完整的数据，包括header和body

<?php function HTTP_Post($URL,$data,$cookie, $referrer="") {    // parsing the given URL $URL_Info=parse_url($URL);    // Building referrer if($referrer=="") // if not given use this script as referrer $referrer="111";    // 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;    // 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, $request); while(!feof($fp)) { $result .= fgets($fp, 1024); } fclose($fp);    return $result; } ?>

方法7:使用curl库，使用curl库之前，可能需要查看一下php.ini是否已经打开了curl扩展

<?php $ch = curl_init(); $timeout = 5; curl_setopt ($ch, CURLOPT_URL, 'http://www.domain.com/'); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout); $file_contents = curl_exec($ch); curl_close($ch); echo $file_contents; ?>

如果你有更好的方法，可以通过文章留言评论给我~


原文地址：https://www.oschina.net/code/snippet_861770_19638