php根据ip获取地区的程序代码

/*
 * 这个函数是获取客户端和IP

 */
function GetIP()
{
 if(!empty($_SERVER["HTTP_CLIENT_IP"]))
 {
  $cip = $_SERVER["HTTP_CLIENT_IP"];
 }
 else if(!empty($_SERVER["HTTP_X_FORWARDED_FOR"]))
 {
  $cip = $_SERVER["HTTP_X_FORWARDED_FOR"];
 }
 else if(!empty($_SERVER["REMOTE_ADDR"]))
 {
  $cip = $_SERVER["REMOTE_ADDR"];
 }
 else
 {
  $cip = '';
 }
 preg_match("/[d.]{7,15}/", $cip, $cips);
 $cip = isset($cips[0]) ? $cips[0] : 'unknown';
 unset($cips);
 return $cip;
} 

$IpLocation = new IpLocation();
$client = $IpLocation->getlocation();
print_r($client);

$IpLocation = new IpLocation('../qqwry/QQWry.Dat');
$client = $IpLocation->getlocation('115.148.101.72');
print_r($client);

  /**
  * 获取IP地区
  * Enter description here ...
  * @param unknown_type $ip
  */
 function GetArea($ip){

 $url = "http://ip168.com/ip/?ip=".$ip;
 $contents = file_get_contents($url);
// preg_match_all('/

)/',$contents,$rs);
 preg_match_all('|

本站主数据：.*

|',$contents,$rsR);
 $rsR[0][0] = str_replace("

本站主数据：", "", $rsR[0][0]);
 $rsR[0][0] = str_replace("

", "", $rsR[0][0]);
 return $rsR[0][0];
 }

function lazdf($ip){

$curl= curl_init();

curl_setopt($curl,CURLOPT_URL,"http://www.ip138.com/ips138.asp?ip=".$ip);
curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);
$ipdz=curl_exec($curl);
curl_close($curl);
preg_match("/

• (.*?)
/i",$ipdz,$jgarray);
preg_match("/本 www.111cn.net 站主数据：(.*)/i", $jgarray[1],$ipp);

return  "

      欢迎来自 ".$ipp[1]." 的朋友！
";

}

echo lazdf(GetIP());//输出ip