/** * Add a species * * @param Species $species * * @return mixed|null */ public function addSpecies($species) { $ret = null; $species_name = $species->getSpecies(); $type = $species->getType(); $stats = $species->getStats(); $this->addSpeciesStatement->bind_param("sss", $species_name, $type, $stats); if ($this->addSpeciesStatement->execute()) { $ret = $this->dbConnection->last_insert_id(); } return $ret; }