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Net_IPv4::ipInNetwork()
PEAR Manual
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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

Example 48-1. 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.

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