function login($host="127.0.0.1",$msg="uname=abc&pass=psswd&op=login",$file="login.php"){ 
    $num = strlen($msg);
    $fp = fsockopen ($host, 80);
    if ($fp) {
 $MSGData .= "POST ".$file." HTTP/1.1
";
 $MSGData .= "Host: ".$host."
";
 $MSGData .= "Content-Length: ".$num."
";
 $MSGData .= "Content-Type: application/x-www-form-urlencoded
";
 $MSGData .= "Connection: Close

";
 $MSGData .= $msg."

";
 fputs ($fp, $MSGData); 
 while (!feof($fp)) $Tmp[]=fgets ($fp,128);  
 fclose ($fp);
}
 
 return $Tmp;//返回到信息
}