Publish: December 26, 2014

Category: 文档

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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

$Middle= intval(($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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