IP.class.php

<?php

class Ip {
    /**
     * 取IP
     * @return string
     */
    public static function get() {
        if ($_SERVER['HTTP_CLIENT_IP'] && $_SERVER['HTTP_CLIENT_IP']!='unknown') {
                $ip = $_SERVER['HTTP_CLIENT_IP'];
            } elseif ($_SERVER['HTTP_X_FORWARDED_FOR'] && $_SERVER['HTTP_X_FORWARDED_FOR']!='unknown') {
                $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
            } else {
                $ip = $_SERVER['REMOTE_ADDR'];
            }
            return $ip;
    }

    /**
     * IP轉成整形數值
     * @param string $ip IP
     * @return int
     */
    public static function ipToInt($ip) {
        $ips = explode('.',$ip);
        if (count($ips)==4) {
            $int = $ips[0]*256*256*256+$ips[1]*256*256+$ips[2]*256+$ips[3];  //根據IP,a,b,c類進行計算
        } else {
            //throw new Exception('ip is error');
            Tool::Alert('IP地址存在錯誤...');  //一個工具類，彈出提示資訊
        }
        return $int;
    }

    /**
     * 判斷IP是否在一個IP段內
     * @param string $startIp 開始IP
     * @param string $endIp 結束IP
     * @param string $ip IP
     * @return bool
     */
    public static function isIn($startIp, $endIp, $ip) {
        $start = Ip::ipToInt($startIp);
        $end = Ip::ipToInt($endIp);
        $ipInt = Ip::ipToInt($ip);
        $result = false;
        if ($ipInt>=$start && $ipInt<=$end) {
            $result = true;
        }
        return $result;
    }

}

?>
 

IpRang.class.php

<?php

//將不同的IP段儲存到陣列中..

$iprang=array(
    array('222.243.159.1','222.243.159.255'),
    array('10.1.1.1','10.1.1.255')
);
?>

<?php

require_once 'Tool.class.php';  //工具類
require_once 'IP.class.php';  //IP類
require_once 'IpRang.class.php';  //IP段範圍

$ip = IP::get();  //獲取IP地址
$tag='1';
foreach($iprang as $key => $value){
  if(!IP::isIn($value[0], $value[1], $ip)){
    continue;
  }else{
    $tag.=$key;
  }
}
if(mb_strlen($tag,'utf-8')==1){
  echo "<script src='http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip=".$ip."' type='text/javascript'></script>";//呼叫新浪IP介面
  echo "<script type='text/javascript'>alert('很遺憾，您所用的裝置網路不在某某範圍內...\\n".$ip."\\n'+remote_ip_info.province+remote_ip_info.city+remote_ip_info.district);  $(\"input[name='submit']\").attr(\"disabled\",true);</script>";
   //彈出提示框，顯示IP地址、地址以及將提交按鈕置為不可用狀態
}

?>