屏蔽指定省份访问PHP代码

Publish: December 26, 2014 Category: 文档 No Comments

其实就是利用API接口的IP查询地址来限制首页不被所在省的IP访问。

ip_config.php代码如下

data->country.$areaInfo->data->area.$areaInfo->data->region.$areaInfo->data->city.$areaInfo->data->isp;
$ipjg=iconv('UTF-8','GBK',$ipjg);
return $ipjg;
}
//----------------IP-----------
function get_real_ip(){ 
$ip=false; 
if(!empty($_SERVER["HTTP_CLIENT_IP"])){ 
$ip = $_SERVER["HTTP_CLIENT_IP"]; 
} 
if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { 
$ips = explode (", ", $_SERVER['HTTP_X_FORWARDED_FOR']); 
if ($ip) { array_unshift($ips, $ip); $ip = FALSE; } 
for ($i = 0; $i < count($ips); $i++) { 
if (!eregi ("^(10│172.16│192.168).", $ips[$i])) { 
$ip = $ips[$i]; 
break; 
} 
} 
} 
return ($ip ? $ip : $_SERVER['REMOTE_ADDR']); 
} 
//---------------------------------
$ip=get_real_ip();
$ip_str=ipdy($ip)
?>

index.php 代码如下






另外一个

$ipNum || $ip2num<$ipNum) {   
        $Middle= intval(($EndNum + $BeginNum) / 2);   

        //偏移指针到索引位置读取4个字节   
        fseek($fd, $ipbegin + 7 * $Middle);   
        $ipData1 = fread($fd, 4);   
        if(strlen($ipData1) < 4) {   
            fclose($fd);   
            return 'System Error';   
        }   
        //提取出来的数据转换成长整形,如果数据是负数则加上2的32次幂   
        $ip1num = implode('', unpack('L', $ipData1));   
        if($ip1num < 0) $ip1num += pow(2, 32);   

        //提取的长整型数大于我们IP地址则修改结束位置进行下一次循环   
        if($ip1num > $ipNum) {   
            $EndNum = $Middle;   
            continue;   
        }   

        //取完上一个索引后取下一个索引   
        $DataSeek = fread($fd, 3);   
        if(strlen($DataSeek) < 3) {   
            fclose($fd);   
            return 'System Error';   
        }   
        $DataSeek = implode('', unpack('L', $DataSeek.chr(0)));   
        fseek($fd, $DataSeek);   
        $ipData2 = fread($fd, 4);   
        if(strlen($ipData2) < 4) {   
            fclose($fd);   
            return 'System Error';   
        }   
        $ip2num = implode('', unpack('L', $ipData2));   
        if($ip2num < 0) $ip2num += pow(2, 32);   

        //没找到提示未知   
        if($ip2num < $ipNum) {   
            if($Middle == $BeginNum) {   
                fclose($fd);   
                return 'Unknown';   
            }   
            $BeginNum = $Middle;   
        }   
    }   

    $ipFlag = fread($fd, 1);   
    if($ipFlag == chr(1)) {   
        $ipSeek = fread($fd, 3);   
        if(strlen($ipSeek) < 3) {   
            fclose($fd);   
            return 'System Error';   
        }   
        $ipSeek = implode('', unpack('L', $ipSeek.chr(0)));   
        fseek($fd, $ipSeek);   
        $ipFlag = fread($fd, 1);   
    }   

    if($ipFlag == chr(2)) {   
        $AddrSeek = fread($fd, 3);   
        if(strlen($AddrSeek) < 3) {   
            fclose($fd);   
            return 'System Error';   
        }   
        $ipFlag = fread($fd, 1);   
        if($ipFlag == chr(2)) {   
            $AddrSeek2 = fread($fd, 3);   
            if(strlen($AddrSeek2) < 3) {   
                fclose($fd);   
                return 'System Error';   
            }   
            $AddrSeek2 = implode('', unpack('L', $AddrSeek2.chr(0)));   
            fseek($fd, $AddrSeek2);   
        } else {   
            fseek($fd, -1, SEEK_CUR);   
        }   

        while(($char = fread($fd, 1)) != chr(0))   
            $ipAddr2 .= $char;   

        $AddrSeek = implode('', unpack('L', $AddrSeek.chr(0)));   
        fseek($fd, $AddrSeek);   

        while(($char = fread($fd, 1)) != chr(0))   
            $ipAddr1 .= $char;   
    } else {   
        fseek($fd, -1, SEEK_CUR);   
        while(($char = fread($fd, 1)) != chr(0))   
            $ipAddr1 .= $char;   

        $ipFlag = fread($fd, 1);   
        if($ipFlag == chr(2)) {   
            $AddrSeek2 = fread($fd, 3);   
            if(strlen($AddrSeek2) < 3) {   
                fclose($fd);   
                return 'System Error';   
            }   
            $AddrSeek2 = implode('', unpack('L', $AddrSeek2.chr(0)));   
            fseek($fd, $AddrSeek2);   
        } else {   
            fseek($fd, -1, SEEK_CUR);   
        }   
        while(($char = fread($fd, 1)) != chr(0)){   
            $ipAddr2 .= $char;   
        }   
    }   
    fclose($fd);   

    //最后做相应的替换操作后返回结果   
    if(preg_match('/http/i', $ipAddr2)) {   
        $ipAddr2 = '';   
    }   
    $ipaddr = "$ipAddr1 $ipAddr2";   
    $ipaddr = preg_replace('/CZ88.Net/is', '', $ipaddr);   
    $ipaddr = preg_replace('/^s*/is', '', $ipaddr);   
    $ipaddr = preg_replace('/s*$/is', '', $ipaddr);   
    if(preg_match('/http/i', $ipaddr) || $ipaddr == '') {   
        $ipaddr = 'Unknown';   
    }   

    return $ipaddr;   
}   

//查找字符串   
function findstr($str, $substr)   
{   
         $m = strlen($str);   
        $n = strlen($substr );   
        if ($m < $n) return false ;   
        for ($i=0; $i <=($m-$n+1); $i ++){   
                $sub = substr( $str, $i, $n);   
                if ( strcmp($sub, $substr) == 0) return true;   
        }   
        return false ;   
}    
?>   

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Tags: php, 屏蔽, 省份

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