Your IP : 216.73.216.74
<?php
defined('_JEXEC') or die('Restricted access');
class SimpleCIDR6 {
protected static $instances = array();
public $network;
public function __construct($network = false) {
if ($network)
$this->setNetwork($network);
}
public static function getInstance($network = false) {
$instanceid = $network ? $network : '';
if (empty(self::$instances[$instanceid]))
{
self::$instances[$instanceid] = new SimpleCIDR6($instanceid);
}
return self::$instances[$instanceid];
}
public function setNetwork($network = false) {
if ($network)
$this->network = $network;
}
public function contains($ip) {
$ip = inet_pton($ip);
$binaryip = self::inet_to_bits($ip);
list($net, $maskbits) = explode('/', $this->network);
$net = inet_pton($net);
$binarynet = self::inet_to_bits($net);
$ip_net_bits = substr($binaryip, 0, $maskbits);
$net_bits = substr($binarynet, 0, $maskbits);
if ($ip_net_bits === $net_bits)
{
return true;
}
return false;
}
private static function inet_to_bits($inet) {
$unpacked = unpack('A16', $inet);
$unpacked = str_split($unpacked[1]);
$binaryip = '';
foreach ($unpacked as $char)
{
$binaryip .= str_pad(decbin(ord($char)), 8, '0', STR_PAD_LEFT);
}
return $binaryip;
}
}