Implementation code of PHP whois client query

/**
* Whois information query
* by bbs.it-home.org
*/
function ae_whois($query, $server)
{
 define('AE_WHOIS_TIMEOUT', 15); // connection timeout
 global $ae_whois_errno, $ae_whois_errstr;
 // connecting
 $f = fsockopen($server, 43, $ae_whois_errno, $ae_whois_errstr, AE_WHOIS_TIMEOUT);
 if (!$f)
 return false ; // connection failed
 // sending query
 fwrite($f, $query."rn");
 // receiving response
 $response = '';
 while (!feof($f))
 $response .= fgets($f, 1024);
 // closing connection
 fclose($f);
 return $response;
}
?>

The above code implements a whois query function, including two parameters $query (whois Query information), $server (domain name server). This function returns the server's response information, or returns false if it fails. The fsockopen error code and error message will be written to the global variables $ae_whois_errno and $ae_whois_errstr. You can change the constant AE_WHOIS_TIMEOUT to set the query timeout.

Example, used to obtain the domain name server information of the domain name jbxue.com. Code:

//whois information query
echo ae_whois('jbxue.com', 'whois.verisign-grs.com');
?>

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