这个Whois类中只有一个方法，通过这个方法可以对几乎所有的domain name进行查询，并将查询结果返回。但对于新的domain name例如：.tv，.info，.biz等还不支持。



代码如下：



<?

/***************************************************



* ?Sloppycode.net All rights reserved.

* This is a standard copyright header for all source code appearing

* at sloppycode.net. This application/class/script may be redistributed,

* as long as the above copyright remains intact.

* Comments to sloppycode@sloppycode.net

***************************************************/



/***************************************************

* @title Whois wrapper for most global TLDs

* @author C.Small

* @version 1.4 - Timeout and whois_server properties added.

* @version 1.3 - Temporary fix for .name,.pro domains

* @version 1.2 - Error catching for .tv domains

* @version 1.1 - Converted to php

* @version 1.0 - Perl version [http://www.sloppycode.net/sloppycode/Perl[CGI]/s29.html]

***************************************************/



Class Whois

{

var $whois_server;

var $timeout = 30;



function lookup($domain)

{

$result = "";

$parts = array();

$host = "";



// .tv don't allow access to their whois

if (strstr($domain,".tv"))

{

$result = "'.tv' domain names require you to have an account to do whois searches.";

// New domains fix (half work, half don't)

} elseif (strstr($domain,".name") || strstr($domain,".pro") >0){

$result = ".name,.pro require you to have an account to do whois searches.";

} else{

if (empty($this->whois_server))

{

$parts = explode(".",$domain);

$testhost = $parts[sizeof($parts)-1];

$whoisserver = $testhost . ".whois-servers.net";

$this->host = gethostbyname($whoisserver);

$this->host = gethostbyaddr($this->host);



if ($this->host == $testhost)

{

$this->host = "whois.internic.net";

}

flush();

}

$whoisSocket = fsockopen($this->host,43, $errno, $errstr, $this->timeout);



if ($whoisSocket)

{

fputs($whoisSocket, $domain."1512");

while (!feof($whoisSocket))

{

$result .= fgets($whoisSocket,128) . "<br>";

}

fclose($whoisSocket);

}

}

return $result;

}

}

?>



上面的代码中定义了一个方法：lookup($domain)，下面的这段代码就是测试这个类的功能的。



<?

include("clsWhois.php");

$whois = new Whois();

echo $whois->lookup("code-labs.com");

?>