Your IP : 216.73.216.74
<?php
defined( '_JEXEC' ) or die( 'Restricted access' );
class SimpleCIDR {
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 SimpleCIDR($instanceid);
}
return self::$instances[$instanceid];
}
public function setNetwork($network=false) {
if($network) $this->network = $network;
}
public function contains($ip) {
list ($subnet, $bits) = explode('/', $this->network);
$ip = ip2long($ip);
$subnet = ip2long($subnet);
$mask = -1 << (32 - $bits);
$subnet &= $mask; # nb: in case the supplied subnet wasn't correctly aligned
return ($ip & $mask) == $subnet;
}
}