Block specific IP block from my website in PHP

Question

I\'d like, for example, block every IP from base 89.95 (89.95..). I don\'t have .htaccess files on my server, so I\'ll have to do it with PHP.

Answer 1

Convert the dotted quad to an integer:

$ip = sprintf('%u', ip2long($_SERVER['REMOTE_ADDR']));

// only allow 10.0.0.0 – 10.255.255.255
if (!($ip >= 167772160 && $ip <=  184549375)) {
    die('Forbidden.');
}