PHP中实现获取IP和地理位置类分享

使用方法详见源码:

但是如果使用了反向代理的,HTTP头中REMOTE_ADDR就不是用户的地址,反而是上一级代理的地址了。

<?php
/*
 * GET LOCATION BY SINA IP INTERFACE
 *
 *              @SOULTEARY 2013.04.14
 */
classIP
{
    private $args=array();
 
    function__construct()
    {
        $this->args=self::init_args(func_get_args());
        $ip=self::GetIP();
 
        $ret=preg_match_all(‘/(\d+\.){3}\d+/i’,$ip,$result);
        if(!$ret){
            returnfalse;
        }else{
            $result=$result[0];
        }
 
       
if(isset($this->args[‘ONLYIP’])&&$this->args[‘ONLYIP’]==true){
 
           
if(isset($this->args[‘FORMAT’])&&$this->args[‘FORMAT’]==’JSON’){
                $result=json_encode($result);
            }else{
                $result=implode(‘,’,$result);
            }
           
if(isset($this->args[‘ECHO’])&&$this->args[‘ECHO’]==true){
                echo$result;
                returntrue;
            }else{
                return$result;
            }
        }else{
 
           
$apiURL=’http://int.dpool.sina.com.cn/iplookup/iplookup.php?ip='.$result\[0\];
           
if(isset($this->args[‘FORMAT’])&&$this->args[‘FORMAT’]==’JSON’){
                $apiURL.=’&format=json’;
                $return=$this->ipCURL($apiURL);
            }else{
                $return=$this->ipCURL($apiURL);
                $return=iconv(“GBK//IGNORE”,”UTF-8″,$return);
            }
 
           
if(isset($this->args[‘ECHO’])&&$this->args[‘ECHO’]==true){
                echo$return;
                returntrue;
            }else{
                return$return;
            }
 
        }
 
    }
 
    public functioninit_args($args)
    {
        $result=array();
        for($i=0,$n=count($args);$i<$n;$i++){
            $result=self::associative_push($args[$i],$result);
        }
        return$result;
    }
 
    public functionassociative_push($arr,$tmp)
    {
        if(is_array($tmp)){
            foreach($tmpas$key=>$value){
                $arr[$key]=$value;
            }
            return$arr;
        }
        returnfalse;
    }
 
    public functionGetIP()
    {
       
if(isset($_SERVER[‘HTTP_X_FORWARDED_FOR’])&&$_SERVER[‘HTTP_X_FORWARDED_FOR’]&&strcasecmp($_SERVER[‘HTTP_X_FORWARDED_FOR’],’unknown’)){
            return$_SERVER[‘HTTP_X_FORWARDED_FOR’];
       
}elseif(isset($_SERVER[‘REMOTE_ADDR’])&&$_SERVER[‘REMOTE_ADDR’]&&strcasecmp($_SERVER[‘REMOTE_ADDR’],’unknown’)){
            return$_SERVER[‘REMOTE_ADDR’];
        }
    }
 
    private functionipCURL($url)
    {
        $ch=curl_init();
        curl_setopt($ch,CURLOPT_URL,$url);
        curl_setopt($ch,CURLOPT_HEADER,0);
        ob_start();
        curl_exec($ch);
        curl_close($ch);
        $result=ob_get_contents();
        ob_end_clean();
        return$result;
    }
}
 
?>
<!DOCTYPE html>
<html>
<head>
    <meta charset=”utf8″>
    <title>demo</title>
    <script type=”text/javascript”>
        varip=”<?php new IP(array(‘ONLYIP’=>true,
‘ECHO’=>true));?>”;
        vardata=<?php
newIP(array(‘FORMAT’=>’JSON’,’ECHO’=>true));?>;
        varresult=”;
        for(oo indata){
            result+=oo+’:’+data[oo]+”\n”;
        }
        alert(result+ip);
    </script>
</head>
<body>
<h1>CODE:</h1>
 
<h2>GETIP</h2>
 
<p>’ONLYIP’=>true,’ECHO’=>true</p>
 
<p><?phpnewIP(array(‘ONLYIP’=>true,’ECHO’=>true));?></p>
 
<P>’ONLYIP’=>true,’FORMAT’=>’JSON’,’ECHO’=>true</P>
 
<p><?phpnewIP(array(‘ONLYIP’=>true,’FORMAT’=>’JSON’,’ECHO’=>true));?></p>
 
<h2>GET Location</h2>
 
<p>’ECHO’=>true</p>
 
<p><?phpnewIP(array(‘ECHO’=>true));?></p>
 
<p>’FORMAT’=>’JSON’,’ECHO’=>true</p>
 
<p><?php
newIP(array(‘FORMAT’=>’JSON’,’ECHO’=>true));?></p>
</body>
</html>

复制代码 代码如下:

发现之前有一个脚本没有写完,简单扩充了一下。
获取IP使用的是经典的逻辑,地理定位使用的是SINA的通用接口。

function get_onlineip() {
$ch = curl_init(‘http://www.ip138.com/ip2city.asp‘);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$a = curl_exec($ch);
preg_match(‘/\[(.*)\]/’, $a, $ip);
return $ip[1];
}

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复制代码 代码如下:

复制代码 代码如下:

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