anonymize($address);
}
/**
* Anonymize an IPv4 or IPv6 address.
*
* @param $address string IP address that must be anonymized
* @return string The anonymized IP address. Returns an empty string when the IP address is invalid.
*/
public function anonymize($address) {
$packedAddress = inet_pton($address);
if (strlen($packedAddress) == 4) {
return $this->anonymizeIPv4($address);
} elseif (strlen($packedAddress) == 16) {
return $this->anonymizeIPv6($address);
} else {
return "";
}
}
/**
* Anonymize an IPv4 address
* @param $address string IPv4 address
* @return string Anonymized address
*/
public function anonymizeIPv4($address) {
return inet_ntop(inet_pton($address) & inet_pton($this->ipv4NetMask));
}
/**
* Anonymize an IPv6 address
* @param $address string IPv6 address
* @return string Anonymized address
*/
public function anonymizeIPv6($address) {
return inet_ntop(inet_pton($address) & inet_pton($this->ipv6NetMask));
}
}