使用php查询ip地址来源归属地

使用php查询ip地址来源归属地2014-08-11
<？phpheader（"Content-Type:text/html;charset=utf-8"）;if（$_GET["sub"]）{$ip = $_GET["ip"];$msg = "";ipSearch（）;}function ipSearch（）{global $ip,$msg;if（！$ip）{$msg = "请至少填写一个ip！";return;}$arises = substr_count（$ip,"."）;$long = ip2long（$ip）;if（$arises ！= 3 || $long == false || $long== -1）{$msg = "无效ip地址，请重新输入！";return;}$content = file_get_contents（"http://www.ip138.com/ips1388.asp？action=2&ip=".$ip）;$content = iconv（"gb2312", "utf-8", $content）;$pos = stripos（$content, "<li>本站主数据"）;if（！$pos）{$msg = "没有查询到！";return;}$endPos = stripos（$content, "</li>", $pos）;$jumpLen = strlen（"<li>本站主数据："）;$address = substr（$content, $pos+$jumpLen, $endPos-$pos-$jumpLen）;$msg = $address;return;}？><！DOCTYPE html><html><head><meta charset="utf-8"><title>test</title></head><body><form method="get"><input type="text" name="ip"/><input type="submit" value="search" name="sub"/></form><br/><？php echo $msg; ？></body></html>