83      * @param string $ipAddress
94     public function get($ipAddress)  argument
101         list($record) = $this->getWithPrefixLen($ipAddress);
109      * @param string $ipAddress
121     public function getWithPrefixLen($ipAddress)  argument
135         if (!filter_var($ipAddress, FILTER_VALIDATE_IP)) {
137                 "The value \"$ipAddress\" is not a valid IP address."
141         list($pointer, $prefixLen) = $this->findAddressInTree($ipAddress);
149     private function findAddressInTree($ipAddress)  argument
151         $rawAddress = unpack('C*', inet_pton($ipAddress));
169                 "Error looking up $ipAddress. You attempted to look up an"