功能：

1，獲取當前IP地址，
2，調用新浪API，獲取到當前城市。
3，將中文轉換為拼音后跳轉。

復制代碼 代碼如下:
<?php
 include './pinyin.php';

//獲取當前ip
function getIp(){
  $onlineip='';
  if(getenv('HTTP_CLIENT_IP')&&strcasecmp(getenv('HTTP_CLIENT_IP'),'unknown')){
   $onlineip=getenv('HTTP_CLIENT_IP');
  } elseif(getenv('HTTP_X_FORWARDED_FOR')&&strcasecmp(getenv('HTTP_X_FORWARDED_FOR'),'unknown')){
   $onlineip=getenv('HTTP_X_FORWARDED_FOR');
  } elseif(getenv('REMOTE_ADDR')&&strcasecmp(getenv('REMOTE_ADDR'),'unknown')){
   $onlineip=getenv('REMOTE_ADDR');
  } elseif(isset($_SERVER['REMOTE_ADDR'])&&$_SERVER['REMOTE_ADDR']&&strcasecmp($_SERVER['REMOTE_ADDR'],'unknown')){
   $onlineip=$_SERVER['REMOTE_ADDR'];
  }
  return $onlineip;
 }

 //獲取城市信息api
 function getLocation($ip){
  $curl = curl_init();
  curl_setopt($curl, CURLOPT_URL, "http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=".$ip);
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 30);
  $str = curl_exec($curl);
  curl_close($curl);
  return $str;
 }

 //當前ip地址
 $currentIP = getIp();

 //通過當前ip獲取信息
 $getLocation = getLocation($currentIP);
 $currentInfo = json_decode($getLocation, true); 

 //判斷ip是否為有效
 if($currentInfo['ret'] == '-1')
 {
  $currentInfo['city'] = 'unknown';
 }

 //當前城市中文名
 $currentCityName = $currentInfo['city'];  
 $currentCityEName = $pin->Pinyin("$currentCityName",'UTF8');

 //城市拼音多音字
 switch($currentCityEName)
 {
  case 'zhongqing':
   $currentCityEName = 'chongqing';
  break;

  case 'shenfang':
   $currentCityEName = 'shifang';
  break;

  case 'chengdou':
   $currentCityEName = 'chengdu';
  break;

  case 'yueshan':
   $currentCityEName = 'leshan';
  break;

  case 'junxian':
   $currentCityEName = 'xunxian';
  break;

  case 'shamen':
   $currentCityEName = 'xiamen';
  break;

  case 'zhangsha':
   $currentCityEName = 'changsha';
  break;

  case 'weili':
   $currentCityEName = 'yuli';
  break;

  case 'zhaoyang':
   $currentCityEName = 'chaoyang';
  break;

  case 'danxian':
   $currentCityEName = 'shanxian';
  break;

  default:
   $currentCityEName = $pin->Pinyin("$currentCityName",'UTF8');
  break;
 }

 //重定向瀏覽器
 header("Location: http://www.jb51.NET");
 exit;

php技術：根據ip調用新浪api獲取城市名并轉成拼音，轉載需保留來源！

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