发布网友 发布时间:2022-04-05 23:35
共4个回答
热心网友 时间:2022-04-06 01:04
<?phpfunction check_ip($range,$ip='') {if($ip =='') $ip = getenv("REMOTE_ADDR");if ($ip == "127.0.0.1") return 1;$result = 1;if (ereg("([0-9]+).([0-9]+).([0-9]+).([0-9]+)/([0-9]+)",$range,$regs)) {$ipl = ip2long($ip);$rangel = ip2long($regs[1] . "." . $regs[2] . "." . $regs[3] . "." . $regs[4]);$maskl = 0;for ($i = 0; $i< 31; $i++) {if ($i < $regs[5]-1) {$maskl = $maskl + pow(2,(30-$i));}}if (($maskl & $rangel) == ($maskl & $ipl)) {return 1;} else {return 0;}} else {$maskocts = split(".",$range);$ipocts = split(".",$ip);for ($i=0; $i<4; $i++) {if (ereg("[([0-9]+)-([0-9]+)]",$maskocts[$i],$regs)) {if ( ($ipocts[$i] > $regs[2]) || ($ipocts[$i] < $regs[1])) {$result = 0;}}else{if ($maskocts[$i] <> $ipocts[$i]) {$result = 0;}}}}return $result;}function auth_ip(){$result = 0;$null_check = 1;$path = "ip.txt"; //ip*配置文件,每行的格式为/*xxx.xxx.xxx.xxx 比如 127.0.0.2xxx.xxx.xxx.[yyy-zzz] 比如 1270.0.0.[2-23]xxx.xxx.xxx.xxx/nn 比如 127.0.0.0/24*/$fg=@fopen($path,"r");while($line=@fgets($fg,1024)){$line = trim($line);$line=ereg_replace("#.*","",$line);if ($line != ""){$null_check = 0;if (check_ip($line)) {fclose($fg);return 1;}}}@fclose($fg);if ($null_check == 1) return 1;return $result;}?><?phpsession_start();if($_SESSION['up2ugg_admin']<>"up2ugg_admin"){if(auth_ip()){?> document.write("<script>window.location.href=\"}}?>热心网友 时间:2022-04-06 02:22
你得有ip分布地址的数据库。php不提供判断ip的函数热心网友 时间:2022-04-06 03:57
有些难,你有国内的IP分布库吗?热心网友 时间:2022-04-06 05:48
$_SERVER['REMOTE_ADDR'] 取得用户ip 国内ip你自己想办法吧