<?php
function wfopen(http://pic3.phprm.com/2011/10/08/$url.jpg,$post='',$cookie='',$timeout=15) {
        $matches = parse_url($url);
        $out = "POST {$matches['path']} HTTP/1.0rn";
        $out .= "Accept: */*rn";
        $out .= "Accept-Language: zh-cnrn";
        $out .= "Content-Type: application/x-www-form-urlencodedrn";
        $out .= "User-Agent: $_SERVER[HTTP_USER_AGENT] rn";
        $out .= "Host: {$matches['host']}rn";
        $out .= 'Content-Length: '.strlen($post)."rn";
        $out .= "Connection: Closern";
        $out .= "Cache-Control: no-cachern";
        $out .= "Cookie: $cookiernrn";
        $out .= $post;
        $socket = @fsockopen($matches['host'],80,$errno,$errstr,$timeout) or die("$errstr($errno)");
        fwrite($socket,$out);
        $header = $data = "";
        while($infos = trim(fgets($socket,4096))) {
                $header.=$infos;
        }
        while(!feof($socket)) {
                $data .= fgets($socket,4096);
        }
        return $data;
}
echo wfopen('http://localhost/te.php','id=5');
?>

te.php

<?php
if(!empty($_POST['id'])) {
echo setcookie('auth','haowei',time()+3600,'/') ? 1 : 0;
}