管理員訪問的白名單IP地址

Question

我在我的網站上有一個區域，我想只允許訪問幾個人。我的代碼現在只適用於一個IP地址，但我希望能夠添加更多。

這裏是我使用的是什麼：

$ipaddress = $_SERVER['REMOTE_ADDR']; 
if($ipaddress == '111.111.111.111') { 
//Action for allowed IP Addresses 
} else { 
//Action for all other IP Addresses 
echo 'You are not authorized here.'; 
echo "<br />IP Address: ".$_SERVER['REMOTE_ADDR']; 
exit; 
} 

Answer 1

$whitelist = array('111.111.111.111', '111.111.111.112'); 
if (in_array($_SERVER['REMOTE_ADDR'], $whitelist)) { 
    //Action for allowed IP Addresses 
} else { 
    //Action for all other IP Addresses 
    echo 'You are not authorized here.'; 
    echo "<br />IP Address: ".$_SERVER['REMOTE_ADDR']; 
    exit; 
}