'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",
'header'=>"Content-type: application/x-www-form-urlencoded\r\n" .
"Content-Length: " . strlen($data) . "\r\n".
"cookie:cookie1=c1;cookie2=c2\r\n";
方法3: 用fopen打开url, 以get方式获取内容
$fp= fopen($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}
":
echo"url body: $result";
fclose($fp);
方法4: 用fopen打开url, 以post方式获取内容
$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$w;
方法5:用fsockopen函数打开url,以get方式获取完整的数据,包括header和body
functionget_url ($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) {
returnfalse;
}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
functionGetUrlHTML($url,$cookie=false)
$rowdata= get_url($url,$cookie);
if($rowdata)
$body=stristr($rowdata,"\r\n\r\n");
$body=substr($body,4,strlen($body));
return$body;
returnfalse;
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
functionHTTP_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 $data
foreach($dataas
$key=>$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
$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;
这里收集了3种利用php获得网页源代码抓取网页内容的方法,我们可以根据实际需要选用。
1、使用file_get_contents获得网页源代码
这个方法最常用,只需要两行代码即可,非常简单方便。
参考代码:
$fh= file_get_contents('http://www.webkaka.com/');
echo $fh;
2、使用fopen获得网页源代码
这个方法用的人也不少,不过代码有点多。
参考代码:
$fh = fopen('http://www.webkaka.com/', 'r');
if($fh){
while(!feof($fh)) {
echo fgets($fh);
3、使用curl获得网页源代码
使用curl获得网页源代码的做法,往往是需要更高要求的人使用,例如当你需要在抓取网页内容的同时,得到网页header信息,还有ENCODING编码的使用,USERAGENT的使用等等。
参考代码一:
// 创建一个新cURL资源
$ch = curl_init();
// 设置URL和相应的选项
curl_setopt($ch, CURLOPT_URL, "http://www.webkaka.com/");
curl_setopt($ch, CURLOPT_HEADER, false);
// 抓取URL并把它传递给浏览器
$data = curl_exec($ch);
echo $data;
//关闭cURL资源,并且释放系统资源
curl_close($ch);
参考代码二:
$szUrl = "http://www.webkaka.com/";
$UserAgent = 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.0.04506; .NET CLR 3.5.21022; .NET CLR 1.0.3705; .NET CLR 1.1.4322)';
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $szUrl);
curl_setopt($curl, CURLOPT_HEADER, 0); //0表示不输出Header,1表示输出
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_ENCODING, '');
curl_setopt($curl, CURLOPT_USERAGENT, $UserAgent);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
$data = curl_exec($curl);
echo $data;
//echo curl_errno($curl); //返回0时表示程序执行成功
如何从curl_errno返回值获取错误信息