CIDR Notation To IP Range

Overview

This document provides information about CIDR Notation To IP Range.

function cidrToRange($cidr)
    {
        $range = [];
        $cidr = explode('/', $cidr);
        $range['from'] = long2ip((ip2long($cidr[0])) & ((-1 << (32 - (int) $cidr[1]))));
        $range['to'] = long2ip((ip2long($range['from'])) + pow(2, (32 - (int) $cidr[1])) - 1);

        return ['cidr' => implode('/', $cidr)] + $range;
    }


//    "INSERT INTO `users_ip_ranges` (`tenant_id`, `user_id`, `ip_from`, `ip_to`, `updated_at`, `created_at`) VALUES ('341', '62896', '201.234.241.72', '201.234.241.79', NOW(), NOW());";

    echo(
        collect([
            '201.234.241.72/29',
            '190.66.1.32/27',
            '190.242.103.32/28',
            '200.3.144.0/23',
            '64.76.191.200/29',
            '190.131.229.80/29',
            '190.14.230.224/29',
            '190.90.156.49/29',
            '190.0.26.113/29',
            '201.234.242.160/28',
            '181.143.83.240/29',
            '207.248.81.0/24',
            '190.254.6.0/24',
            '190.242.43.224/29',
        ])->map(function ($cidr) {
            $range = cidrToRange($cidr);

//            return $range;

            return "INSERT INTO `users_ip_ranges` (`tenant_id`, `user_id`, `ip_from`, `ip_to`, `updated_at`, `created_at`) VALUES ('341', '62896', '".$range['from']."', '".$range['to']."', NOW(), NOW());";
        })->flatten()->toJson()
//        cidrToRange('201.234.241.72/29')
    );

---