private function sanatizeInput($lat, $lon, $radius, $substance_filter) { $input["lat"] = Sanatization::sanatizeNumbers($lat); $input["lon"] = Sanatization::sanatizeNumbers($lon); $input["radius"] = Sanatization::sanatizeNumbers($radius); $input["substance"] = Sanatization::sanatizeFieldInput($substance_filter); return $input; }