[php] view plain copyfunction convertip($ip) {      $return = '';      if(preg_match("/^/d{1,3}/./d{1,3}/./d{1,3}/./d{1,3}$/", $ip)) {          $iparray = explode('.', $ip);          if($iparray[0] == 10 || $iparray[0] == 127 || ($iparray[0] == 192 && $iparray[1] == 168) || ($iparray[0] == 172 && ($iparray[1] >= 16 && $iparray[1] <= 31))) {              $return = '- LAN';          } elseif($iparray[0] > 255 || $iparray[1] > 255 || $iparray[2] > 255 || $iparray[3] > 255) {              $return = '- Invalid IP Address';          } else {              $tinyipfile = DISCUZ_ROOT.'./data/ipdata/tinyipdata.dat';              $fullipfile = DISCUZ_ROOT.'./data/ipdata/wry.dat';              if(@file_exists($tinyipfile)) {                  $return = convertip_tiny($ip, $tinyipfile);              } elseif(@file_exists($fullipfile)) {                  $return = convertip_full($ip, $fullipfile);              }          }      }      return $return;  }  

[php] view plain copyrequire_once libfile('function/misc');  $city=convertip($_G['clientip']);  echo $city;