connection = connect(); } public function insertKeyword(Keyword $keyword) { $query = "INSERT INTO Keyword(id, word) VALUES(:id, :word)"; $this->connection->executeQuery($query, array( ':id' => array($keyword->getId(), PDO::PARAM_INT), ':word' => array($keyword->getWord(), PDO::PARAM_INT) )); } public function deleteKeyword(Keyword $keyword) { $query = "DELETE FROM Keyword WHERE id = :id"; $this->connection->executeQuery($query, array( ':id' => array($keyword->getId(), PDO::PARAM_INT) )); } public function getAllKeyword(): array { $query = "SELECT * FROM Keyword"; $this->connection->executeQuery($query); return $this->connection->getResults(); } }