这是WHOIS查找的代码。 
<? 
function whois_request($server, $query) { 
$data = ""; 
$fp = fsockopen($server, 43); 
if($fp) { 
fputs($fp, $query."rn"); 
while(!feof($fp)) { 
$data .= fread($fp, 1000); 
} 
fclose($fp); 
} 
return $data; 
} 
?> 
<FORM> 
<INPUT TYPE=HIDDEN NAME=action VALUE=query> 
Server: <INPUT TYPE=TEXT NAME=server VALUE="<?echo $server?>"> <SMALL>(ie: whois.networksolutions.com)</SMALL><BR> 
Domain: <INPUT TYPE=TEXT NAME=query VALUE="<?echo $query?>"> <SMALL>(ie: wackowoh.com)</SMALL><BR> 
<INPUT TYPE=SUBMIT VALUE=" OK "> 
</FORM> 
<? 
if($action == "query") { 
$data = whois_request($server, $query); 
echo "Sent $query to $server.<p>"; 
echo "Output: <p><pre>$data</pre><p>"; 
} 
?>