Net_IPv4::ipInNetwork()

Net_IPv4::ipInNetwork() -- Determines whether or not the supplied IP is within the supplied network.

Synopsis

    require_once 'Net/IPv4.php';

bool validateIP ( string $ip_addr , string $cidr_block )

Description

Determines whether or not the supplied IP address is within the supplied network.

Example

Checking if a IP adress is contained in a network


<?php

require 'Net/IPv4.php';

$ip   = '10.11.12.13';
$net1 = '10.0.0.1/8';
$net2 = '127.0.0.1/8';

echo Net_IPv4::ipInNetwork($ip, $net1) // bool(true)
echo Net_IPv4::ipInNetwork($ip, $net2) // bool(false)
?>

Note

This function can be called statically.