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$allow_ip_list = array(
'123.123.123.123-123.123.123.255' //IP범위
,'121.134.232.1' //단일 IP
);
/**
* 허용 IP체크함수
*/
function checkAllowIp($allow_ip_list,$guest_ip){
$arr = array();
$t = $t0 = $t1 = NULL;
$tg = sprintf('%011u',ip2long($guest_ip));
foreach($allow_ip_list as $val){
$t = explode('-',$val);
switch(count($t)){
case 2: //범위지정
$t0 = sprintf('%011u',ip2long($t[0]));
$t1 = sprintf('%011u',ip2long($t[1]));
if($t0 <= $tg && $tg <= $t1){
return true;
}
break;
case 1: //단일 IP
$t0 = sprintf('%011u',ip2long($t[0]));
if($t0 == $tg){
return true;
}
break;
default: //잘못된 설정
exit('##잘못된 리스트 설정입니다!##');
break;
}
}
return false;
}