php fsockopen函数发送post,get请求获得网页内容（反防采集）

php教程 fsockopen函数发送post,get请求获得网页内容（反防采集）
$post =1;

$url = parse_url($url);

$host ='http://www.php100.com';

$path ='/';

$query ='?action=php100.com';

$port =80;



if($post) {

$out = "post $path http/1.0rn";

$out .= "accept: */*rn";

//$out .= "referer: $boardurlrn";

$out .= "accept-language: zh-cnrn";

$out .= "content-type: application/x-www-form-urlencodedrn";

$out .= "user-agent: $_server[http_user_agent]rn";

$out .= "host: $hostrn";

$out .= 'content-length: '.strlen($post)."rn";

$out .= "connection: closern";

$out .= "cache-control: no-cachern";

$out .= "cookie: $cookiernrn";

$out .= $post;

} else {

$out = "get $path http/1.0rn";

$out .= "accept: */*rn";

//$out .= "referer: $boardurlrn";

$out .= "accept-language: zh-cnrn";

$out .= "user-agent: $_server[http_user_agent]rn";

$out .= "host: $hostrn";

$out .= "connection: closern";

$out .= "cookie: $cookiernrn";

}

$fp = @fsockopen(($ip ? $ip : $host), $port, $errno, $errstr, $timeout);

if(!$fp)

{

return '';//note $errstr : $errno rn

} else {

return '成功访问';

}

/*

fsockopen语法



resource fsockopen ( string $hostname [, int $port = -1 [, int &$errno [, string &$errstr [, float $timeout = ini_get("default_socket_timeout") ]]]] )


启动一个套接字连接到指定的主机的资源。

php支持在互联网领域的目标和unix在所支持的套接字传输列表说明。所支持的传输列表也可以检索使用stream_get_transports（）。



该插座预设会被启用，阻塞模式。你可以切换到非阻塞模式使用stream_set_blocking（）。



如果上面实例看不懂，就来看个简的吧
*/

$fp = fsockopen("www.php100.com", 80, $errno, $errstr, 30);

if (!$fp) {

echo "$errstr ($errno)

n";

} else {

$out = "get / http/1.1rn";

$out .= "host: www.php100.comrn";

$out .= "connection: closernrn";

fwrite($fp, $out);

while (!feof($fp)) {

echo fgets($fp, 128);

}

fclose($fp);

}