PHP 执行 whois 操作的代码

要获取指定IP地址的whois数据，可使用如下代码

<?php
/**
    Program to perform ip whois
    Silver Moon
    [e-mail]
*/
 
$ip = "74.65.112.23";
 
$whois = get_whois($ip);
 
echo "<pre>$whois</pre>";
 
/**
    Get the whois content of an ip by selecting the correct server
*/
function get_whois($ip)
{
    $w = get_whois_from_server('whois.iana.org' , $ip);
 
    preg_match('@whois\.[\w\.]*@si' , $w , $data);
 
    $whois_server = $data[0];
 
    //echo $whois_server;
 
    //now get actual whois data
    $whois_data = get_whois_from_server($whois_server , $ip);
 
    return $whois_data;
}
 
/**
    Get the whois result from a whois server
    return text
*/
function get_whois_from_server($server , $ip)
{
    $data = '';
 
    #Before connecting lets check whether server alive or not
 
    #Create the socket and connect
    $f = fsockopen($server, 43, $errno, $errstr, 3);    //Open a new connection
    if(!$f)
    {
        return '';
    }
 
    #Set the timeout limit for read
    if(!stream_set_timeout($f , 3))
    {
        die('Unable to set set_timeout');   #Did this solve the problem ?
    }
 
    #Send the IP to the whois server
    if($f)
    {
        fputs($f, "$ip\r\n");
    }
 
    /*
        Theory : stream_set_timeout must be set after a write and before a read for it to take effect on the read operation
        If it is set before the write then it will have no effect : http://in.php.net/stream_set_timeout
    */
 
    //Set the timeout limit for read
    if(!stream_set_timeout($f , 3))
    {
        die('Unable to stream_set_timeout');    #Did this solve the problem ?
    }
 
    //Set socket in non-blocking mode
    stream_set_blocking ($f, 0 );
 
    //If connection still valid
    if($f)
    {
        while (!feof($f))
        {
            $data .= fread($f , 128);
        }
    }
 
    //Now return the data
    return $data;
}

执行结果

#
# Query terms are ambiguous.  The query is assumed to be:
#     "n 74.65.112.23"
#
# Use "?" to get help.
#
 
#
# The following results may also be obtained via:
# http://whois.arin.net/rest/nets;q=74.65.112.23?showDetails=true&showARIN=false&ext=netref2
#
 
NetRange:       74.64.0.0 - 74.79.255.255
CIDR:           74.64.0.0/12
OriginAS:
NetName:        RRNY
NetHandle:      NET-74-64-0-0-1
Parent:         NET-74-0-0-0-0
NetType:        Direct Allocation
RegDate:        2006-03-27
Updated:        2007-01-29
Ref:            http://whois.arin.net/rest/net/NET-74-64-0-0-1
 
OrgName:        Road Runner HoldCo LLC
OrgId:          RRNY
Address:        13820 Sunrise Valley Drive
City:           Herndon
StateProv:      VA
PostalCode:     20171
Country:        US
RegDate:        2000-09-28
Updated:        2011-07-06
Comment:        Allocations for this OrgID serve Road Runner residential customers out of the New York City, NY and Syracuse, NY RDCs.
Ref:            http://whois.arin.net/rest/org/RRNY
 
ReferralServer: rwhois://ipmt.rr.com:4321
 
OrgTechHandle: IPTEC-ARIN
OrgTechName:   IP Tech
OrgTechPhone:  [phone]
OrgTechEmail:  [e-mail]
OrgTechRef:    http://whois.arin.net/rest/poc/IPTEC-ARIN
 
OrgAbuseHandle: ABUSE10-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  [phone]
OrgAbuseEmail:  [e-mail]
OrgAbuseRef:    http://whois.arin.net/rest/poc/ABUSE10-ARIN
 
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#