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php实现根据IP地址获取其所在省市的方法,ip所在省市

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Release: 2016-06-13 09:05:32
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php实现根据IP地址获取其所在省市的方法,ip所在省市

根据现有IP地址获取其地理位置(省份,城市等)的方法

function GetIpLookup($ip = ''){  
  if(empty($ip)){  
    return '请输入IP地址'; 
  }  
  $res = @file_get_contents('http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip=' . $ip);  
  if(empty($res)){ return false; }  
  $jsonMatches = array();  
  preg_match('#\{.+?\}#', $res, $jsonMatches);  
  if(!isset($jsonMatches[0])){ return false; }  
  $json = json_decode($jsonMatches[0], true);  
  if(isset($json['ret']) && $json['ret'] == 1){  
    $json['ip'] = $ip;  
    unset($json['ret']);  
  }else{  
    return false;  
  }  
  return $json;  
} 
$ipInfos = GetIpLookup('123.125.114.144'); //baidu.com IP地址  
var_dump($ipInfos); 
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再发一个简化版的

function getIpAddress(){  
  $ipContent  = file_get_contents("http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js");  
  $jsonData = explode("=",$ipContent);   
  $jsonAddress = substr($jsonData[1], 0, -1);  
  return $jsonAddress;  
}  
$ip_info=json_decode(getIpAddress());  
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PHP根据IP地址实现城市切换或跳转

到这里,其实问题已经很简单了,用简单的js就通通搞定。C段如下:

//根据IP地址跳转指定页面js取得城市

var city=''; //根据IP地址所有城市跳转到指定页面

if(city.indexOf("上海市")>=0){

         window.location.href="http://shanghai.demo.com/"; }
将开头的A段代码和上面的C段代码分别放在B段代码的头和尾,然后我们在需要跳转的页面加入以下代码:


刷新页面,是不是达到预想的效果了呢?

以上所述就是本文的全部内容了,希望大家能够喜欢。

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