Recently I came across some code snippets and it's full of mess, lacking fundamentals, lacking basic code separation... That made me to wonder why some developers aren't learning the basics before trying anything.
I've noted that many people are searching here about how to find out City/Country/ISP details from IP; often referred as GeoIP. Here, I've compiled my replies that once I posted to comp.lang.php Get the IP Refer http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xml and see which whois server should be used for the whois lookup Now, do the whois lookup. e.g., whois -h whois.apnic.net 61.x.x.x Parse the results. AFAIK, it will have the ISP, City and Country info For whois lookup, may use rwhois protocol through below PHP code: <?php function whois($host, $command) { $fp = fsockopen ($host, 43, $errno, $errstr, 100); if (!$fp) { $result = $errstr . $errno . "\n"; } else { fputs ($fp, $command . "\r\n\r\n"); $result = ''; while (!feof($fp)) { $result .= fgets ($fp, 128); } fclose ($fp); } return $result; } //debug... echo whois('whois.internic.net', 'php.net'); ?> Re...
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