PHP获取网页内容的几种方法代码分享

PHP获取网页内容的几种方法代码分享

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

<?phpfunction 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 {$requ<span>！本文来源gaodai#ma#com搞*!代#%^码网5</span><pre>搞gaodaima代码

est = “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 $result;}}//获取url的html部分，去掉headerfunction GetUrlHTML($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

<?phpfunction HTTP_Post($URL,$data,$cookie, $referrer=""){  // parsing the given URL$URL_Info=parse_url($URL);  // Building referrerif($referrer=="") // if not given use this script as referrer$referrer="111";  // making string from $dataforeach($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;?>

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